Trending February 2024 # Comparatif : Dyson Airwrap Vs Shark Flexstyle # Suggested March 2024 # Top 8 Popular

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Dans l’ensemble, les deux produits offrent les mêmes possibilités de coiffure. La question est donc de savoir si vous devriez économiser avec Shark, ou investir chez Dyson ?

Hannah Cowton / Foundry

Quels accessoires sont fournis ?

Votre type de cheveux joue un rôle important dans votre prise de décisions, il est donc indispensable de s’intéresser aux accessoires proposés par les marques afin de s’assurer qu’ils soient bien adaptés.

Airwrap de Dyson

Le Airwrap peut être personnalisé afin d’adapter son utilisation à vos cheveux. Pour cela, sur le site web de Dyson, vous pouvez répondre à un questionnaire pour déterminer leur type, longueur, densité et tenue. Grâce à cela, vous serez conseillé au mieux sur l’ensemble des outils capillaires.

C’est particulièrement essentiel si vous êtes bouclé ou frisé, auquel cas certains des accessoires standards deviendraient inutiles.

Hannah Cowton / Foundry

Le kit standard comprend les éléments suivants :

Roulot Airwrap de 30 mm

Roulot Airwrap de 40 mm

Brosse de lissage dure

Brosse de lissage douce

Brosse volumatrice ronde

Embout de séchage lissant Coanda

Pochette de rangement

Le Airwrap est également disponible en Bleu/cuivré, Nickel/cuivré et Prusse/cuivré.

FlexStyle de Shark

Les options FlexStyle sont un peu différentes et comprennent des moyens de personnaliser votre kit, mais elles varient selon où vous êtes.

En France, vous profiterez du standard 5 en 1 couleur champagne et composé de :

Boucleurs à effet Coanda

Brosse plate

Brosse ovale

Concentrateur

Diffuseur

Le diffuseur donne un léger avantage à Shark car Dyson ne le propose pas en option.

Le tout convenant à tous les types de cheveux.

Emma Rowley / Foundry

Quelles sont leurs caractéristiques ?

L’une des principales raisons d’acheter l’un ou l’autre de ces stylers est la technologie de bouclage à air chaud. Les rouleaux sont bien plus faciles à pratiquer qu’un fer à friser traditionnel, car ils profitent du flux d’air pour attirer une mèche de cheveux autour du fer, sans brûler ni vos doigts ni vos cheveux.

L’emplacement des commandes sur le Dyson est plus intuitif, avec sa fonction “cold shot” étant située sur le bouton d’alimentation. Sur le FlexStyle, on les retrouvent sur en bas de l’appareil, ce qui n’est pas toujours pratique.

De plus, le Shark est également plus bruyant que son concurrent, qui est étonnamment silencieux.

Hannah Cowton & Henry Burrell / Foundry

Au-delà de cela, la meilleure caractéristique du FlexStyle est qu’en tournant la poignée, il passe d’un long styler à un sèche-cheveux en forme de 7, facile à manier et réglable pour différentes longueurs de cheveux. Cependant, en raison de la charnière, l’appareil semble moins solide que le Airwrap.

Emma Rowley / Foundry

Du côté de Dyson, vous apprécierez les bigoudis. Au lieu d’en avoir un qui tourne dans le sens des aiguilles d’une montre et un autre à l’inverse, le sens de rotation peut être changé.

Hannah Cowton / Foundry

Le Airwrap l’emporte également haut la main en ce qui concerne l’étui de rangement, qui est beaucoup plus élégant et de meilleure qualité que celui compatible avec le FlexStyle.

Poids et dimensions

Le Dyson Airwrap mesure 27 x 4 x 4,8 cm (10,6 x 1,6 x 1,9 pouces) et pèse 611 g avec son cordon pivotant de 2,62 m.

Le FlexStyle est, lui, un peu plus difficile à mesurer en raison de sa conception tordue. Déployé, il mesure près de 44 cm pour un diamètre de 14,5 cm. Sous forme de sèche-cheveux, comptez 22 cm de long pour 700 g, cordon pivotant de 2,44 m et prise compris.

Performances

Pour cette confrontation, nous avons comparé tous les accessoires des deux appareils : ceux du sèche-cheveux, les fers à boucler (la version de 30 mm pour Dyson), les brosses lissantes (la version douce pour Dyson) et les brosses de séchage.

La boîte de Dyson comprend deux tailles en standard, 30 mm et 40 mm. En revanche, Shark n’a qu’une seule taille (31,75 mm), ce qui réduit la polyvalence de l’appareil.

Vous trouverez aussi deux tubes à intervertir pour changer la direction du flux d’air. L’ancien Airwrap de Dyson était ainsi conçu, mais la version que nous avons testée est dotée d’une structure innovante qui permet d’inverser le flux d’air en cours de route.

Même si l’appareil de Shark semble plus chaud, l’effet Coanda du Dyson a attiré plus de cheveux sur son cylindre que le FlexStyle. Nous les avons utilisé tous les deux à température élevée et à débit d’air moyen, mais avons parfois dû mettre l’appareil de Shark à pleine puissance pour réussir à enrouler plus de cheveux.

À gauche, comme vous le voyez sur l’image ci-dessous, nous avons utilisé le Airwrap, tandis que pour le côté droit nous nous sommes servis du FlexStyle. Les cheveux ont été humidifiés et séchés à 80 %, avec un spray de protection contre la chaleur et un salé pour la tenue.

Cheveux coiffés avec le Dyson Airwrap à gauche et le Shark FlexStyle à

droit

e

Hannah Cowton / Foundry

Les résultats sont similaires. Les deux appareils donnent un niveau décent de volume et de définition, si ce n’est qu’en raison de la taille légèrement plus grande du cylindre du Shark, les boucles sont un peu plus lâches.

Pour le test de résistance, voici les résultats après un cours de sport et une chaude journée, environ cinq heures après le coiffage initial :

Cheveux coiffés par le Dyson Airwrap à gauche et par le Shark FlexStyle

à droite

Hannah Cowton / Foundry

Comme vous pouvez le constater, les cheveux sont tombés assez bas avec les deux appareils, comme nous nous y attendions. Cependant, le Dyson offre légèrement une meilleure définition, même si le cylindre plus petit a pu y contribuer.

Lorsqu’il s’agit de sécher les cheveux, le FlexStyle a l’avantage. La fonction innovante de pliage facilite grandement la navigation et diffuse une grande chaleur pour un séchage rapide. Cependant, une trop forte température équivaut à plus de dégâts, donc si la santé de vos cheveux est une préoccupation majeure, le Airwrap est un peu plus doux.

Les brosses lissantes ont produit des résultats très similaires. La tête de brosse de Shark a mis moins de temps à parcourir nos cheveux en raison de sa taille plus importante, mais l’ajout de poils piquants la rend moins efficace que la brosse de Dyson capable de se faufiler entre les nœuds.

Quant aux brosses soufflantes, elles sont de conception différente. Celle du Airwrap ressemble à une petite brosse cylindrique généralement nécessaire pour le brushing, tandis que celle de Shark s’inspire de la Revlon OneStep, avec un mélange de poils différents.

Hannah Cowton / Foundry

Si les deux donnent un bel aspect rebondi aux cheveux, la finition générale dépend de vos préférences. Si vous souhaitez mieux contrôler vos coiffures et avoir la possibilité d’ajouter quelques boucles lâches séchées au sèche-cheveux, le Airwrap l’emporte grâce à sa taille compacte. Il est également mieux adapté pour les franges.

Toutefois, si vous désirez avoir un brushing plus élégant et qui prend moins de temps, la FlexStyle est la meilleure option.

Dans l’ensemble, le Airwrap bat le FlexStyle sur la longévité et les performances, mais de justesse !

Prix et disponibilités

Le Dyson Airwrap coûte 599,99 € en France et il est disponible sur le site de la marque ou encore chez Fnac, Boulanger et Amazon. Le modèle le plus courant est celui pour cheveux longs, mais encore une fois vous pouvez répondre au questionnaire de Dyson pour personnaliser votre kit de coiffage.

Le FlexStyle est disponible en France à 299,99 € chez Shark et à ce prix, vous disposerez de 5 accessoires. Vous pouvez acheter le FlexStyle chez les mêmes revendeurs que ceux cités précédemment Fnac, Boulanger et Amazon.

Emma Rowley / Foundry

Verdict : choisir le Dyson Airwrap ou le Shark FlexStyle ?

Si l’on tient compte de tous les éléments, le Dyson Airwrap est gagnant.

Comme les autres produits de la marque, il bénéficie d’une qualité de fabrication supérieure, plus robuste et intuitive que le FlexStyle. Le fait qu’il produise moins de chaleur évite d’endommager les cheveux, sans sacrifier la tenue de la coiffure. Les cylindres de 30 mm et 40 mm offrent également une grande souplesse d’utilisation pour la création de boucles.

Ceci étant dit, le Airwrap est presque deux fois plus cher que le FlexStyle avec lequel vous obtiendrez pourtant des résultats impressionnants et qui peut même être une meilleure option pour préserver les ondulations ou boucles naturelles grâce à son diffuseur.

Adaptation de l’article original publié par Hannah Cowton sur TechAdvisor en langue anglaise.

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Dyson Purifier Humidify + Cool Formaldehyde Review

Pros

Quiet fan

Humidifier easy to use

Excellent air quality display & app

Sensitive air purifier

Cons

Slight whine in operation

Not very portable

Expensive

Our Verdict

If you’re looking for a humidifier, this is the luxury option to go for. It will also purify and cool your air and it has high-quality smart features and an in-depth display. Still, it’s not quite perfect: it has a slight whine when running.

There’s no more recognisable home appliance than a Dyson fan, thanks to its iconic design. The bladeless fan is available in a number of different forms: heating, cooling, air purifying and humidifying – and various combinations of these.

You can browse all the available appliances on the Dyson website in the US or the UK. They start in price at $419.99 in the US for a purifying fan or £349.99 for the simple Cool Tower Fan in the UK, and go up to $939.99/ £699.99 for Dyson’s newest multifunctional appliances.

We’re looking at Dyson’s latest combination air care appliance: the Purifier Humidify + Cool Formaldehyde (PH04). It’s a bladeless air purifying fan and humidifier. As the name suggests, it’s also one of the few air purifiers available that specifically targets and destroys formaldehyde in the air.

Design and build

Comprehensive, full colour display

Remote and app control

Not very portable: no wheels, fairly heavy at 8.2kg/ 18lbs

The Purifier Humidify + Cool Formaldehyde comes in a white, nickel and (very coppery) gold colourway. If you’re in the US, you can get it in nickel and (coppery) gold for $20 more. The key difference between the two colourways is that the fan loop is in silver rather than white.

If you’ve never seen a Dyson fan in real life, you might not know that they vary in size. This one is 92.3cm high, with a 31cm diameter base. Its footprint is probably slightly smaller than that of a standing fan and it’s not quite as tall. It would be a perfect height to cool you if you were sitting on a sofa.

Still, it’s not quite as compact as the Purifier HP09 Hot+Cool Formaldehyde. Although the two appliances share a very similar design, the clear water tank at the base of the humidifying model adds some height and marks out its specific function.

It’s a fairly heavy appliance at 8.2kg/ 18lbs and it doesn’t have wheels, so you’ll probably want to find a spot for it and leave it there. It’s not really suitable for moving from room to room with you.

Emma Rowley / Foundry

It comes with a matching copper-coloured remote control that, in a nice touch, magnetically attaches to the top of the appliance so you won’t lose it.

Emma Rowley / Foundry

On the appliance’s front is a round, full colour display. You can use the ‘i’ button on the remote to cycle through and show all potential measurements. It’s an extremely comprehensive list that shows:

Air quality

PM 2.5 (smaller particles)

PM10 (larger but still inhalable particles)

HCHO (formaldehyde)

VOCs (volatile organic compounds – toxic and smelly gases)

NO2 (nitrous dioxide – typically from vehicle emissions)

Temperature

Humidity level

All of the air quality indicators have a four-colour chart – from green (good) to red (very poor) – so you can get at-a-glance information.

Emma Rowley / Foundry

You can also use the onscreen display to check the remaining filter life and your Wi-Fi signal.

MyDyson app

The Purifier Humidify + Cool Formaldehyde is a connected device that you can also control via the MyDyson app. This is a big plus as the app (formerly called Dyson Link) is beautifully designed and easy to use.

In our test, the appliance connected quickly and without trouble. Still, your results may vary, depending on the strength of your Wi-Fi signal.

Once linked, you can control your machine, view your air quality and see air quality trends, all in app. It’s also a straightforward business to connect to your Alexa, Siri or Google Home voice assistant, so you can switch it on and off with voice commands and add it to routines.

The app also contains a wealth of information on how to use your machine and troubleshooting.

Setting up the Purifier Humidify + Cool Formaldehyde

The machine’s set-up is not complicated. First, the tape needs to be removed and the filters fitted.

However, it might be an idea to watch the Dyson set-up video. If you do, you’ll see a model interacting with the machine with all the considered elegance of a Japanese tea ceremony. That is certainly not how it looked when I did it.

There’s a slight trick to removing the filters and the water tank: you need to use both hands at once to press the buttons on each side. This may mean that it may not be an ideal product for a disabled user.

While I found the water tank easy to move once I learned this, I still found the filter covers a bit fussy. They don’t attach and detach in a satisfying manner.

Next, you’ll remove the tank at the base and fill it with water. The tank is well designed, with wheels underneath and a carry handle on top, so it’s easy to do. And that’s it – very straightforward.

Using the fan

10 speed settings

Oscillation

Timer

The fan has 10 speed settings and is quiet in operation. Even at the highest setting, all you can hear is the sound of rushing air. There’s no mechanical noise at all.

However, I did find that that the appliance whines in operation. It’s audible when the fan is on its lower settings.

The top setting is very powerful as a personal cooling fan, in part thanks to Dyson’s air multiplier technology. What this means is that more air is drawn in from behind the fan and from the sides when it’s in operation.

Presumably, however, this air won’t have just gone through the purifier, which means that it may not be the best choice for people with hay fever or similar issues, who are looking for an air purifier/fan to help with their allergies.  

However, if you don’t want the cooling feature, you can change the direction of the airflow so that it comes out at the back of the machine and doesn’t blow directly at you, so this may help.

You can turn on fan oscillation to cool a wider area. There’s also a timer which you can set to 30 minutes, or 1, 2, 4 or 8 hours, and a night mode that sets it going on its quietest level and dims the display.

The fan also has breeze mode, which varies the airflow “to mimic a cooling refreshing breeze”. I’ve yet to meet anyone who finds this mode anything other than annoying but someone out there must like it: whoever it is, take note.

Using the air purifier

Catalytic (anti-formaldehyde) filter never needs replacing

Replace HEPA filter annually at a cost of $79.99/ £65

Air quality monitor is sensitive

Th unusual element in this purifier is the catalytic filter, which breaks down formaldehyde in the air and which will never need replacing.

You might have formaldehyde in your air if you’re painting or decorating, use fuel-burning appliances or just from cleaning products and cosmetics.

This is why its excellent display is so valuable: if your air purifier doesn’t give you much information, you won’t always realise when you need to use it

Outside of this, the purifier has a three-stage, HEPA filter that cleans the air of VOCs, smaller (PM2.5) and larger (PM10) particles. This is a comprehensive filter system that should remove anything unpleasant from your air at home.

Emma Rowley / Foundry

Still, it’s hard to measure its effectiveness against air purifiers from other brands. If you take a look at our round-up of the best air purifiers we’ve tested, you’ll see that most appliances show a clean air delivery rate (CADR), which is an industry-wide system of measurement, showing how long it takes to clean a room of a given size of different types of pollutants.

However, Dyson has some objections to CADR as a measurement and doesn’t really use it. You can find out more on the Dyson website. So, all we can do is tell you how it well it worked during our testing period.

I might have been a tiny bit sceptical before using it – because of Dyson’s stance on CADR – but I was impressed in the test.

The appliance was set up in the living room, and after we had cooked lunch on the hob in the kitchen on the other side of the hall, the display showed a rise in PM 2.5 pollution in the air and assessed the air quality as poor.

My home is by no means of palatial size but this is the first time an air purifier has been sensitive enough to detect that change so far away from the kitchen. It could also detect a change in air quality from a window opening, and from a spray cleaner used in another room.

Emma Rowley / Foundry

We’ve tended to have the windows closed most of the time recently, because of the unseasonably cold weather, which doesn’t help indoor air quality. Seeing the change in air quality on the display motivated me to run the air purifier and open the windows regularly to refresh the air.

This is why its excellent display is so valuable: if your air purifier doesn’t give you much information, you won’t always realise when you need to use it.

The only issue to flag with the purifier is the ongoing cost. The 360° Glass HEPA+Carbon filter costs $79.99/ £65 to replace, which is a little pricier than those of rivals. The machine will let you know when it’s time to change it, but Dyson recommends you do so every year.

Still, whichever air purifier you buy, you’ll need to replace the filter. People question why they’re not washable, but if they have a VOC-catching carbon layer, that’ll just get saturated over time and there’s no option but to replace it.

Using the humidifier

Easy to use

Auto mode

Can be switched off if you only want the fan and purifier

The humidifier element will probably mean that this Dyson appliance is more niche than other combination fan models. Depending on where you are in the world, you might have more problems with damp than with a lack of it.

If you don’t want to use the humidifier all the time, you can switch this function off and just use the appliance as a fan and air purifier.

The humidifier couldn’t be easier to use. You just need to fill the water tank and press a single button

However, if you have your windows closed a lot and the heating on (and congratulations if you can afford that) you might find that you get sinus headaches, dry skin and cracked lips, or that there’s a lot of static, all of which can be signs that the air in your home is too dry.

Estimates of the ideal humidity level vary a bit, but it’s a range from 30-60% or from 40-70%, depending on which source you use. Within that range, you’ll find a comfortable level.

Emma Rowley / Foundry

The humidifier couldn’t be easier to use. You just need to fill the water tank and press a single button.

You can choose auto humidify or set a level from 30%-70%. Obviously, though, this is a humidifier, not a dehumidifier, so you can’t lower your room’s humidity with this appliance. We have tested the excellent Meaco Arete One if you’re looking for a dehumidifier.

Earlier models of the Dyson humidifier were reported to have problems with the deep cleaning cycle. So it was a bit of a worry when, after only using the appliance once, it wouldn’t turn on and requested a deep clean right away. However, there’s a video that shows how to do it (you’ll need citric acid and it takes an hour) and after a deep cleaning cycle, it ran perfectly.

One thing to note is that the air where I live tends towards dampness, especially at this time of year. That means we had no problems reaching a healthy humidity threshold and were unable to test how it performed in an area with very dry air.

Price and availability

At the time of writing, we could only find the Purifier Humidify + Cool Formaldehyde for sale from Dyson (US, £919.99 or 939.99, depending on the colourway; UK, £699.99).

It’s at the top end of the price range for Dyson’s air care appliances. That’s because of its multi-functionality and the fact that it can destroy formaldehyde in the air, which is a rare feature. It does everything that any Dyson fan can – except for heating.

Verdict

You can buy all of the appliances that make up the Purifier Humidify + Cool Formaldehyde separately, for less than the price of this one. But then you’d be storing and using at least three separate appliances – four, if you want a really good air quality monitor – and we doubt that any would be as comprehensive and easy to use.

This is an excellent appliance that performed well during our test. We were particularly impressed with the sensitivity of the air purifier and the huge amount of data on air quality it provides, both on the display and in the app.

If you’d like to see more air purifiers and combination appliances, have a look at our round-up of the best air purifiers we’ve tested.

Power Bi Vs Tableau Vs Qlik

Difference Between Power BI vs Tableau vs Qlik

Power Bi is a Business Intelligence tool we can upload data and publish data throughout our companies. Business Intelligence response to any query and improves decision making. Adding power to the business for good visualization of data. Another feature of Power BI Is Quick Insights in which we can search a dataset for interesting patterns and provides a list of charts for a better understanding of data. It uses artificial intelligence and data mining to analyze the data. Qlik is also a Business Intelligence and data visualization tool.

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It is an end – to end ETL solution yielding good customer service. With qlik, we can create a flexible end-user interface, make good presentations based on the data, creates dynamic graphical charts and tables, perform statistical analysis, builds own expert systems. Qlik can be used with the virtual database. It is a window-based tool that requires the following components: Qlik Server, Qlik Publisher.

Features of Power BI

Rich Graphical visualizations from complex BI data.

Ad-hoc Reporting

Good Navigation Pane

Includes a dataset with customizable dashboards.

Features of Qlik

With the use of a hybrid approach, the user can associate data stored within big sources are stored within the Qlik view in-memory dataset.

With the help of direct discovery, they allow users to perform Business discovery and visual analysis.

Mobile-ready, Roles, and Permissions

Interact with dynamic apps, Dashboards.

Features of Tableau

They have a good drag and drop.

For data sharing, they use Tableau Public.

They implement interactive data visualizations on the web.

Their performance is strong and reliable and operates on huge data.

They are mobile-friendly and supports full online versions.

Head To Head Comparison Between Power BI and Tableau and Qlik(Infographics)

Below is the top 9 difference between Power BI vs Tableau vs Qlik

Key Differences Between Power BI and Tableau and Qlik

These are popular choices in the market; let us discuss some of the major difference:

Qlik can be immediately accessed by multiple users. Qlik is faster than Tableau. Power bI connect to any data source they do not require ETL.

The documents are stored in. the qvw format we can access these documents via Qlik Views proprietary communication protocol and stored in Windows OS, and all the events are taken in Qlik Server, they are responsible for Client-Server Power BI has three types of files excel(.xls), power BI desktop(.pbix), (.csv). Tableau extract files can have (.tde) file extensions.

Qlik structure is not well managed whereas Tableau structure is managed by well user guide.

Qlik works as a standalone technique. Publishing the data to the outside world are managed by QlikView Publisher. Power BI is available only on the SAAS model whereas Tableau has cloud and on-premises option. Power BI desktop version is free.

Data modeling facilities are increased using POwerBI. In Qlik Data insights are generated rapidly.

Tableau and Power BI is user-friendly. Qlik has high customizable patterns.

Qlik and tableau work for statistical analysis. Power BI does not have this capability.

Power BI vs Tableau vs Qlik Comparison Table

Below is the 9 topmost comparison

The basis of comparison  Power BI Tableau Qlik

Performance  It Lacks behind on data visualizations. They are more User-friendly because Non- technical users can work with this tool. They use cubic Technique Qlik needs a developer to work with reports and dashboards. They take all types of datasets.

They have good visualizations.

User Interface

Dashboards are the key feature of PowerBI when has a good User interface to publish the report.

User Interface is better

User Interface is quite down when compared with Tableau.

Ease of learning

User-friendly- Knowledge of Excel is enough

They do not require any technical or programming skills to work with.

Easy to learn with Data science background.

Supportive requirements

Power BI has Power BI desktop, Gateway

They work with front-end tool such as R.

Qlik consists of both front-end (Qlik Developer) and back-end (Qlik Publisher)

Version

The desktop version is free, Power BI Pro is pay per month. Tableau Reader is a free version. Tableau Server is a licensed one. Qlik Personal Edition is a free version of Qlik and runs without a license Key.

Cost- Effectiveness Less expensive. Qlik website has two editions. Personal version is free, Enterprise version can be used contact with the team.

Online Analytical Programming They connect to OLAP cubes via SQL servers for multidimensional analysis. Tableau can connect to OLAP taking out the cube measures at the deepest level. Access to OLAP provides encapsulated data views.

Speed They have smart recovery Speed depends on RAM and data sets. They have better Speed since they store the data in the server RAM (In-Memory Storage)

Advantage Power BI are inexpensive and have scalability for larger projects. They are top ranked in intelligence visualizations. They provide wide range deep analytics and they have good customer satisfaction

ratings.

Conclusion Recommended Articles

This has a been a guide to the top difference between Power BI vs Tableau vs Qlik. Here we also discuss the key differences with infographics, and comparison table. You may also have a look at the following articles to learn more.

Power Supply Ratings Explained: 80 Plus Platinum Vs. Gold Vs. Bronze Vs. White

Efficiency ratings explained

A power supply’s efficiency rating tells you how much energy makes the conversion from AC power (what it draws from the wall) to DC power (what your PC’s components run off of). The rest is lost as heat. Power supplies rated as 80 Plus will have a 80-percent power to 20-percent heat ratio at 20-percent, 50-percent, and 100-percent load. As you get into the precious metal designations, the efficiency rises, capping out at 94-percent under 50-percent load for a Titanium-rated model. The efficiencies for power supplies rated at 80 Plus Bronze and above vary based on the amount of load.

The more efficient a power supply is, the less power it uses and the less heat it generates—which means a lower electricity bill and a quieter PSU. The components tend to be better too, which means you should be able to use it for longer. Manufacturer warranties usually reflect this: A Bronze-rated power supply might get a 3- to 5-year warranty, while a Platinum-rated model will be backed for 10 years.

These days, the most power supplies from well-known, reliable manufacturers have an 80 Plus or above certification, but it is possible to find other PSUs that fall below that. Those cheap power supplies that get included as part of a bundle with ultra-cheap cases? Not 80 Plus-rated.

The actual percentage of efficiency for the U.S. and other countries with electrical grids that run on similar voltage. (You can see the full chart on CLEAResult’s site.) The minimum efficiency to meet ATX specifications is 60-percent at 50-percent load—much lower than where the 80 Plus standard begins.

How to choose an efficiency rating for a power supply

Three main considerations help determine what efficiency rating will work best for your PC build:

Local electricity rates

Ambient temperatures

Budget

Most average PC users who live in a temperate climate with low pricing for electricity will do fine with a standard 80 Plus or 80 Plus Bronze power supply. As you can see in the table above, the efficiencies don’t dramatically jump as you move to a higher rating.

EVGA

Typically as you go up in wattage, power supply efficiency ratings rise as well. But efficiency ratings don’t always tell the whole story about a specific model’s performance, so be sure to read reviews to get the full picture.

If you live someplace where electricity is more expensive, then the cost savings of a more efficient power supply can be worth the higher initial price. A higher-rated PSU can also make sense if you live somewhere that gets very hot for long periods, as ultra-warm ambient temperatures can reduce a power supply’s efficiency. Less heat from your power supply means less noise from its fan and less work on your part to keep your PC cool overall, too.

In general, the higher you climb in wattage, so too does the efficiency rating. Your decisions will typically fall between just two to three options, which will make the selection process easier. Don’t feel obligated to spend more than you need—budget still matters. Buy a power supply with an efficiency that fits your situation, not the demands of other people who believe you must always maximize on specs.

Mobile Testing: Real Devices Vs Emulators Vs Simulators

The infiltration of web apps and mobile apps is a major concern. Testing is a key focus for many companies. It touches almost every aspect of our day-to-day lives. App and Web Testing are important parts of the overall development process. This involves finding and fixing bugs, including issues with navigation, signup forms, payment processing, and more. This ensures that users have a seamless experience on all devices.

A thorough testing process can lead to a variation in the results when it is done on different devices. It is even more important to test on mobile devices because of the many devices with different operating systems, browsers, and hardware configurations.

This helps identify bugs and weaknesses in the app and benchmark its performance. This mobile testing exercise is designed to ensure that the app is ready for market and meets customer expectations.

It’s time to look at the different methods and mediums for executing mobile testing.

Emulators

Emulators can be described as software that mimics the hardware and software of a device.

Pros:

Most emulators are open-source and can be used for free

Testing web apps with Eases

They make binary translation for the machine easier

Cons:

They are likely to use a lot more computing power.

Not all apps are supported by emulators

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Simulators

These simulators are designed for specific operating systems. Simulators are designed for Apple’s OS platforms. iOS, macOS, etc.

Pros:

It’s easier to take pictures of problems

Simulators are, like emulators and other open-source software.

Cons:

This limits the machines that can be used to test mobile apps.

It does not allow testing functionalities like battery usage, motion sensors, or cellular interrupts.

Real devices

This testing requires the use of real mobile handsets to test an application. Real devices-based testing requires the use of multiple sizes and models of devices that are compatible with the app.

Pros:

This testing requires a variety of devices to ensure greater functionality in mobile apps.

One can perform rigorous performance testing with real devices.

Cons:

Real device testing is often more complex because the company must test each relevant mobile device.

This type of testing can be very expensive.

Let’s now compare simulator-based, emulator-, and real devices.

Performance

Speed

Cost

This sums up the main differences between real and virtual device-based testing. Each of these forms of testing has its unique pros and cons. It can be difficult to choose between these forms of testing. However, a careful analysis of your project’s requirements and what mobile testing offers can help you make an informed choice. You can also find a trusted mobile tester to assist you in your testing.

Comparison: Apple Homepod Vs Google Home Vs Amazon Echo

Comparison: Apple HomePod Vs Google Home Vs Amazon Echo Apple HomePod Vs Google Home Vs Amazon Echo 1. Apple HomePod

Apple HomePad is one of the newest smart speakers among Google Home and Amazon echo. This device is set up with Siri and other Apple smart devices. This smart speaker was launched in the US back in 2023 and about to launch in India as well. HomePod comes with seven speakers(tweeter) and a dedicated woofer setup (for custom amplifier) as well. With the superior sound quality, you can command Siri from anywhere (like from a room or living area) and she will hear your voice commands. Some of the Pros and Cons of Apple HomePod are:

Built-in Apple Music integration

High fidelity audio quality

Apple’s focus on privacy

Compatible with HomeKit

Ambient Siri for digital assistant

Cons:

Only compatible with Apple devices

No Bluetooth compatibility

No Alexa or Google Assistant

Need to AirPlay other music streaming services

2. Google Home

One of the most iconic smart speakers from Google. This device enables users to speak through voice commands to interact through Google Assistant. You can use this smart speaker in a house with third-party integrated service which allows users to control playback of photos and videos, listen to music or receive any new updates through Google Assistant. Google Home (Google Nest devices) has integrated support for home automation through which you can control your home appliances(smart) with your voice command. Some of the Pros and Cons of Google Home are:

Pros:

Can cast a video to your TV, identify differently voices, cast audio to multiple devices.

Supports Google Play Music and YouTube Music.

Ability to answer all questions and pretty good sound quality.

Customizable appearance and Aesthetic design.

Bluetooth audio streaming and works with Spotify accounts.

Cons:

Can’t read or send emails and messages.

Firmware and features updates are not available to all regions.

Lags in third-party support when compared to Amazon Echo.

Lacks physical buttons on the top of the device and doesn’t have an audio out port.

No intercom feature and doesn’t hear from a distance too.

3. Amazon Echo

Amazon Echo (3rd Gen) is a highly affordable smart speaker as compare to Apple HomePod and Google Home. With decent audio quality and 360-degree speakers (Dolby-digital), Alexa is pretty capable in digital assistant and fully integrated with your Amazon account. This device is compatible with all smartphones and smart home devices like controlling your home smart lights, music streaming services, etc. Command Alexa to play music and tell her to play music from different music streaming services includes Apple and Amazon music, add items to your shopping list and many more. Some of the Pros and Cons of the Amazon Echo are:

Pros:

Integrates with your Amazon account

Compatible with iOS and Android

Works with Apple Music, Spotify, Pandora, etc. with skills

Very affordable

Lets you call and message others

Cons:

Privacy concerns

Audio quality is not as good compared to HomePod and Google Home

Apple services are not built-in

Comparison Table

Apple HomePad Google Home Amazon Echo

Assistant Siri Google Assistant Alexa

Music Support Apple Music Google Play Music, Spotify Premium, YouTube Music, Pandora, iHeartRadio, TuneIn Amazon Music, Prime Music, Amazon Music Unlimited, Spotify Premium, Pandora, TuneIn, iHeartRadio, Audible

Multi-room Yes with AirPlay 2 Yes with Chromecast Audio Yes, with multiple Echo speakers

Smart Home & third-party support Yes, through HomeKit only Yes Yes

Microphones 6 far-field +

1 low-frequency calibration microphone

2 far-field 7 far-field

Speakers 7x tweeter + woofer 2-inch driver + 2x 2-inch passive radiators 0.6-inch tweeter + 2.5-inch woofer

Connectivity Wi-Fi

(Bluetooth currently unknown)

Bluetooth & Wi-Fi Bluetooth & Wi-Fi

Dimensions and Weight 172 x 142mm

5.5lbs

142.8 x 96.4mm

1.05lbs

148 x 88mm

1.81lbs

Price $299 $99 $74.99

Conclusion

Since the above three are best in smart speakers and I will go with Google Home(personally) as Google is better sounding and great compatibility with all smartphones despite these two (Apple HomePod and Amazon Echo). Google home is easily customizable and easy to use with Chromecast as well. If you want a decent one in terms of price and sound, then the Amazon Echo is best. And if you are very much concerned about the privacy, Apple HomePod will deliver beyond your expectations.

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Pranay Mathur

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