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Buying Guide: How to Decrypt the Datasheets of Smartphones

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Buying Guide: How to Decrypt the Datasheets of Smartphones 

                     

You want to offer a phone or, worse yet, choose your precious future? If the fact sheets posted by online resellers and physical shops leave you confused, this is the folder for you. We decompose the essential elements to take into account to understand what it returns, and choose your smartphone knowingly. Because no, the "it is really good, moreover I bought it" launched by a seller looks convinced, it is enough.

File maintained on 10 November 2017

Screen: HD, Full HD, FHD +, QHD, QHD +?

The screen is one of the essential elements to consider when buying a phone, since it is he who will ensure the essential comfort that it will provide you. It is even more important to pay attention that it deserves that, and it is a shame, it is on the front line among manufacturers seeking to cut corners on the cost of components of their device. And to choose it, there is no question of just checking if it is "HD."

The HD (1280 × 720 pixels) is good, the Full HD (1920 × 1080 pixels) is even better, not to mention the Quad HD, or QHD (1440 × 2560 pixels). Note that there are now screens in 18: 9 format with FHD + or QHD + type definitions. It is just a longer screen, which usually occupies a more prominent place on the front (the borders are reduced).

The Galaxy S8 has a 18: 9 screen in QHD + resolution. This is called borderless (actually, it has screen borders but they are very small)

But to understand what these pretty figures cover, we must first put them next to the diagonal of the screen. Because what matters is not only the definition of the screen (HD, Full HD ...), but also its resolution, the number of pixels displayed per inch, the famous "ppp" ( pixels per inch ") or ppi (pixels per inch, in the Shakespeare language). Thus, the display difference between a qHD smartphone (960 × 540 pixels) of 4.5 inches and a smartphone HD of 5.5 inches will be minimal: one will obtain 244 dpi for the first and 267 dpi for the second one. If you want a very nice screen - which usually will inflate the price of your device - prefer a resolution exceeding 400 dpi, the threshold at which ordinary mortals do not perceive, so to speak, more pixels at the usual distance of use of a smartphone.

The Sony Xperia XZ Premium has a 4K display. Beware, the majority of the time it does not display the 4K ... marketing can kill us.

Other elements are of course to be taken into account to understand the data sheets. Look for any anti-scratch treatment which will significantly increase the life of your device, but also reduce fingerprints. The most widespread, the Corning Gorilla Glass, is very effective. The highest-end smartphones adopt the Gorilla Glass 5 while the mid-range offers Gorilla Glass 3 or 4, more than enough. In case of absence, ask yourself questions. In the same vein, if you have the opportunity to take in hand the phone that makes you an eye in a shop, think to tilt the device to verify that the glass that covers his touch screen is not too far away . The further it is, the more it will suffer from reflections in the sun. You can also see some manufacturers talk about OGS or Zero Air Gap technologies, proximity guarantees between these two elements of the screen.

The screen of the LG G Flex 2 is curved, it is almost the only one in this Note: It does not exist anymore, but we should soon have flexible screens, we believe it.

Finally, there are a plethora of screen types to consider. Samsung, LG, but also some brands of which they are suppliers, propose the AMOLED, a technology with significant contrast and black pixels simply extinguished, which limits the energy consumption by this type slabs. Others offer the IPS LCD, known for its faithful colors, or TFT LCD (often TN type) more basic. The ideal would obviously be to know the origin of each screen to assess the quality, each manufacturer does not provide the same quality, with equivalent technical characteristics. The fact that a screen is IPS LCD or OLED does not necessarily mean that it is a good screen : viewing angles, contrast, calibration, color rendering differ according to the models.

You can at least be sure that the TN slabs, heirlooms of the time when telephones were the enemy of man, are what is more ugly and less comfortable . And if you see cd / m2 measurements, know that they relate to the brightness of your screen. The higher this data (above 500 cd / m2), the better. If in doubt, if the phone is on, tilt it to the side: if the image becomes white or black (or any other unexpected color), it's time to take your legs to your neck.

            

                     Learn more:                       IPS Slabs

            

Design: plastic, glass or metal?

We're not going to teach you, the appreciation of the design of a phone is especially subjective. On the other hand, the grip, the quality of the materials and the touch can (and must!) Be criteria which one can not always judge before the card of an on-line shop. In an ideal world, all potential buyers should take at least once in their hands the phone they are targeting . And if that's not the case, again, you have to rely on the various tests.

If the shape of smartphones changes little, we must pay attention to the materials used. High-end smartphones focus on metal and glass. There is something for all tastes, but most adopt glass: this material offers wireless charging. Since Apple offers it on its iPhone, we can expect a return in force of this feature. I imagine however that if you are ready to spend more than 500 to 1000 euros in a high-end smartphone, you will take the time to try it at least once in a shop or with a product owner (do not hesitate to ask him for his opinion)

To read on FrAndroid: 6 wireless chargers Qi (induction) smartphone to free you cables

The case of mid-range and entry-level smartphones requires a little more attention. Often, smartphones less than 150 euros are all plastic. We must therefore take care to check that the finishes are well to go: the shell creaks when you tighten it? If the shell is removable, does it seem fragile? Do you think this microSD card slot or SIM card can last for two years? Will I suffer to have such a phone in hand for several years? Be careful, in the field of entry-level smartphone design, it's not because you're taking a big brand ( Samsung, HTC, LG) that the materials used and the finishes will be of better quality than those of less known branded smartphones.

Last point of design, a handful of smartphones (at Sony in particular, but also at Samsung, LG and now Huawei) are resistant to water and some are waterproof . We explained the why of how waterproof smartphones in a dedicated folder, but if you see "IP67" or "IP68" on the data sheet, you will do less chick for your device. You also have our selection of smartphones waterproof at this address .

Read this on FrAndroid: Waterproof smartphones: the best choices to no longer drown your mobile in 2017

The version of Android: Nougat to a minimum

When looking at the version of Android installed on the phone, two questions arise. The first is to know under what version of Android is installed the phone and the second to know if it will benefit from updating during its life.

The generalities first. Google requires its partners to use the latest versions of Android. In practice, the builders do a little what they want. One of the only constraints comes from the version of Android to install on phones. Builders who want to install Android and benefit from Google apps must install at least . The rest is at the discretion of the manufacturer ( launcher pre-embedded applications and games, bloatwares and others).

And it's a very large rest: builders can customize Android as they wish and add a graphical interface of their own. Samsung uses Samsung Experience, HTC uses Sense, Wiko integrates the Wiko UI to its new devices, but other manufacturers, can also install a "pure" version of Android, without overlay, what is called a stock version of Android (or Vanilla). At Motorola or Nokia, the changes are very slight. Moreover, it is wrong to name this overlay: it is simply custom applications that take the place of basic applications. These overlays often add additional features to Android, services or preinstalled applications. They can also be more or less greedy in RAM and used storage space and can sometimes slow down the phone. From this point of view, however, the builders have made a lot of progress in recent years.

            

                     Learn more:                       Nougat: what were the fastest builders in ...

            

Most smartphones are now delivered natively under Nougat. However, it is still possible to find on the net stocks of older phones installed under older versions of Android. We will not explain in detail the features of each version of Android. What is important to remember is that if you opt for an entry-level smartphone and therefore more limited in terms of power, avoid Android KitKat (4.4) or Lollipop (5.0). Google, well aware of the development of entry-level smartphones, has significantly lightened its OS and makes it runs properly on small configurations. Without being infréquentables, you will not advise to opt for these Android versions (and lower). Fluidity and stability are not always at the rendezvous and some applications may be incompatible. So privilege at least Nougat, or even the latest version Oreo . In general, and as in all areas of new technologies, the more recent the version, the better.

 motorcycle x lollipop "width =" 664 "height =" 449 "/> </a> </p>
<p> Having a device installed under a specific version of an OS is good, but this version is regularly updated, it's better. From this point of view, Google imposes (still) absolutely nothing on manufacturers who decide themselves devices they update, or not (yet Google has announced the opposite). In fact, and as evidenced by <a href= our table of devices updated to Android Lollipop that of Nougat or that of Oreo everything depends of builders.

Read on FrAndroid: Android 8.0 Oreo: the list of compatible smartphones and tablets

Wiko is a bad student for example, but Samsung is making efforts on its mid-range and high-end smartphones. On this kind of smartphones or tablets, some major manufacturers (Samsung, LG, Motorola, HTC) implicitly guarantee to update their high-end smartphones for 18 to 24 months. If the software aspect is something that matters to you, this is to be taken into account. Note finally that if the software updates are made by the manufacturers, they also depend on operators who can also buy phones . Operator updates are often later than those on smartphones bought bare.

Finally, you can also check the presence of the official security update (in the settings, about): it is offered every month by Google, but the builders are not obliged to deploy them.

The processor and RAM

The evaluation of the hardware part of the phone is surely the most delicate thing to do for the novice. And in this regard, the fact sheets, whether displayed in stores or on online stores, are often obscure, if not very vague. Manufacturers, like distributors do not hesitate to say "quad core processor clocked at 1.2 GHz" or more simply "processor: Snapdragon quad core". To find one's way, there is unfortunately no miracle, one must do some research to understand what these specifications cover .

A SoC, other than those of Qualcomm

Let's start from the base. The processors of smartphones, the central chips that deal with the majority of calculations and on which the power of the phone depends, are not quite identical to the processors that are found, for example in PCs. For phones and tablets we speak rather of SoC, for System on a Chip. It is actually a chip that includes both the processor (CPU), but also the graphics chip (GPU), the equivalent of a graphics card on a PC . And that's not all: sensors, GPS, ISP for photography and so on. Let's put all this aside to look at the processor itself.

This processor can include two, four or eight cores (and even more), be 32 or 64 bits (99% of smartphones are in 64 bits now). And, point out immediately, the number of hearts and their pace is not necessarily synonymous with more or less great power . A high-end quad-core processor clocked at 1.2 GHz can be much more powerful than a 1.5 GHz eight-core processor. It all depends on the manufacturer of the phone, the manufacturer of the processor, the quality of burning components, the amount of RAM used and, more generally, the technology (which evolves very quickly from one year to another in SoC domain) used. A truck equipped with a V12 will not necessarily go faster than a four-cylinder car.

            

                     Learn more:                       GPUs and graphics chips: who are they and what are they for?

            

There are two major SoC manufacturers today: Qualcomm and MediaTek (Intel and Nvidia have abandoned the smartphone market). And each of them have more or less efficient SoC and therefore more or less expensive. Qualcomm, an American manufacturer, to begin, divides (and for simplicity) its processors into four categories: Snapdragon 2xx (by the way, they lost the name Snapdragon ), Snapdragon 4xx , Snapdragon 6xx and Snapdragon 8xx, which schematically correspond to the entry-level, mid-range and high-end and may have 4 or 8 cores. We already speak at length about the performances of these different SoCs in our different tests.

To summarize, one could say that Qualcomm's SoCs are a safe bet. Provided they are supported by a sufficient amount of RAM (at least 2 GB), their performance is overall very correct. Above all, these SoCs are equipped with very good GPUs, which ensure a good graphical fluidity when running games.

MediaTek SoCs are typically found on entry-level and mid-range smartphones . The problem with MediaTek is that the latter does not have a classification as clear and orderly as Qualcomm. It is therefore very often very difficult to know which processor we are dealing with and whether it is more input or mid-range. No secret to check their power, it is necessary to consult tests and data sheets. Nevertheless, MediaTek's latest eight-core SoCs are convincing and sometimes more powerful than Qualcomm's entry and midrange SoCs. The GPU, however, is often much lower than what is found in the US.

On the question of the power of smartphones, in general, there are not too many questions to ask on high-end phones. All, or almost all, have high-end components and often very powerful. To the point that the user will almost never use his SoC thoroughly. Caution is especially important on smartphones input and mid-range. Feel free to look for the reference on the Net and watch the performance in tests of devices with the same processor, the same amount of RAM and the same screen definition as the smartphone. On FrAndroid, for example, we always take the time to launch some benchmarks on the phones we test to evaluate their power and compare them to devices in the same price range. These tests validate what can be felt using the smartphone on a daily basis .

An example of benchmark (that of Galaxy Note 8). This table allows you to compare the performance of three phones in the same category and see how they compare to each other.

Finally, on the subject of RAM, we will be adamant: do not buy a smartphone with less than 2 GB of RAM it is the minimum union to run correctly and the OS and applications in 2017. 3GB is comfortable, 4GB of luxury and 8GB practically useless at the moment, if not to keep a large number of applications in cache, which offers a very slight comfort to daily.

Camera: the number of megapixels is not everything

At a time when sales of compact cameras are falling in favor of smartphones, the photo aspect of the data sheets is to be studied closely. Keeping in mind that the number of megapixels is good, but that it is far from being essential when it comes to a smartphone.

As on a traditional camera, many data matters. If it is mentioned, the size of the sensor will have to be taken into account. The larger the sensor, the better. But still remember that a smartphone photo sensor will struggle to match that of a traditional camera and for good reason, the format of a phone is much too small to accommodate a large sensor, unless to concede an unsightly growth. The latest smartphones incorporate sensors from 1 / 2.6 to 1 / 2.3 inch. You can be fussy and check the size of the photosites (the bigger they are, the more they will be able to capture information like light).

After the sensor, let's switch to optics. The opening is generally mentioned by the manufacturers of high-end smartphones. An LG V30 thus offers an aperture of f / 1.6, a Samsung Galaxy Note 8, f / 1.7. Remember that the smaller the number, the better it will be to restore an illusion of depth of field and capture a lot of light .

Still in the field of high-end, some manufacturers evoke their "OIS" system, Optical Image Stabilization, optical image stabilization. This one is mechanical and not software, allowing to attenuate the effect of blur when you move and thus to catch more light in low luminosity without having a blurred shot. If you take a lot of pictures with your phone, or shoot, it's a must have .

These points are nothing without an adapted software part, since the photo processing is at the base of digital photography. Some phones, especially under Nougat, will satisfy the users of software at Lightroom, since they produce photographs in RAW format that is to say raw photographs. This is particularly the case for most smartphones, as at OnePlus. This raw format can capture much more information to edit your photos (and correct some aberrations). Attention, if you want to enjoy it, you will need a lot of available memory since the files reach several tens of MB. Same fight for video enthusiasts: the format offering the highest definition is of course the 4K (above the Full HD and 720p HD), but all this will seriously clutter the memory of your phone. So check the amount of storage (minimum 32 GB today, 16 GB for small uses) and l presence or absence of a slot microSD .

 imx 344 "width =" 435 "height =" 375 "/> </a> </p>
<h3> And if the smartphone has two cameras? </h3>
<p> Today, the majority of high-end smartphones (and even midrange) offers two cameras in the back. This is an interesting development in more ways than one, but manufacturers have adopted for different strategies. Indeed, there are three types of dual camera modules: </p>
<ul> <li> <strong> The color and monochrome sensors </strong>: like Huawei, Honor or Essential, these smartphones have a color sensor and another black and white. The black and white sensor, in addition to offering monochrome shots, can capture additional elements (such as contrast, for example) compared to the first RGB camera. It also makes it possible to accentuate the depths of the fields, to create super portrait (the bokeh is created artificially by the software). </li>
</ul>
        
<ul> <li> <strong> The telephoto camera </strong>: Apple, but also Samsung offer a second camera with a different optics. It often makes it possible to create 50 mm equivalent photographs, what they call "2x". This is a way of introducing an optical zoom on the smartphone: a classic camera, often with a 70-degree viewing angle, and a "zoomed" camera. The two cameras combined can also create photos with artificial bokeh, the iPhone 8 Plus and the X are rather relevant to this game. </li>
</ul>
        
<ul> <li> <strong> The wide angle </strong>: LG, but also Asus, offer a second wide-angle camera (viewing angle of 110 to 130 degrees). We are thus with the possibility of making snapshots quite similar to those of a GoPro, in addition to the classic camera. </li>
</ul>
        
<p> Beware, some cheap smartphones (Chinese) offer two cameras: the second camera is dummy most of the time. </p>
<p> Finally, we have not mentioned it: all the points raised in this part can be applied to the front camera. Check the size of the sensor, the quality of the optics, but also the presence of a second camera (<a href= the Wiko View Prime offers a wide-angle camera at the front for the selfies as a group).

Storage space: misleading indications

You are going to invest in a smartphone, so it's time for wisdom: ask yourself what uses you will make. If you're a big movie consumer, do you love to record videos and take pictures, have your music follow you everywhere, and download games in a mess? So you need to store all that.

Business starts on the side of internal memory, often reduced to a trickle in entry-level smartphones. If 8 GB were acceptable two years ago, Nougat tends to take his ease on a smartphone today, with 4 to 6 GB occupied by the system. In other words, the 8 GB of storage granted by entry-level smartphones leave very little room for those who download applications in number and will be adapted only to the most moderate users.

With 16 GB, you'll have the assurance of having 10 GB straight, which lets you see what's coming - bearing in mind that some games with good graphics sometimes occupy nearly 1 GB. More you go upmarket and more - usually - you get storage space. 32 GB, 64 GB for example, even 128 and 256 GB.

Here a OnePlus One with 64 GB of internal memory. 54.92 GB actually available.

Second point to note: Does your phone have a microSD port? If the apps you download from the Play Store are installed on your device's internal memory, the additional downloads, but also the photos you take and each other content can be placed on a memory card. There too, it will be necessary to pay attention to the capacity of maximum memory card authorized by your telephone (roughly speaking, from 32 Go to 2 TB ): one explains to you the why of how in this dedicated file to microSD cards .

To read on FrAndroid: Buying Guide: our selection of the best microSD and microSDHC cards in 2017

Last detail, but of importance, among smartphones dual-SIM . Some phones are indeed able to accommodate two SIM cards, usually housed in drawers located on the side of the phone. But like the Acer Liquid Jade Z, the second SIM card port can also turn into a microSD port. In this type of device, it will therefore be necessary to choose between memory and dual-SIM, which is not inconsequential, according to the uses.

Battery: the delicate question of autonomy

There is little to check from a battery standpoint when you buy a smartphone. They are generally all lithium-ion type (rare li-po batteries) and their quality depends mainly on their manufacturer. Their capacity, that is, the energy they can accumulate, is expressed in mAh

            

                     Learn more:                       All about batteries: myths

            

Today, rare are the smartphones whose battery is under the heading of 2500 mAh . Si vous avez un écran QHD (qui consomme beaucoup) et un processeur plutôt efficace, vous risquez d’avoir bien du mal à finir votre journée sans brancher votre téléphone à votre chargeur. Pour un petit modèle à faible définition d’écran, cela devrait suffire. Retenez que globalement, pour un écran dépassant les 5 pouces, on attend une batterie de 3000 mAh minimum pour tenir une bonne journéevoire un peu plus, et que rares sont les exceptions.

Vous verrez probablement des mentions de type “charge rapide”“Quick Charge 3.0” et consorts sur quelques fiches techniques. Samsung sur ses propres téléphones (équipés de puces Exynos), mais aussi Qualcomm ou encore OnePlus proposent des solutions permettant de charger rapidement la batterie de leur appareil, généralement autour de 50 % de la batterie en une demi-heure maximum. Il faut alors disposer d’un chargeur adapté, fourni avec le téléphone, et se rappeler plusieurs éléments. D’abord, il ne s’agit pas d’une charge linéaire, c’est-à-dire que la première moitié de la batterie se charge très rapidement tandis que la deuxième est beaucoup plus lente à se remplir. Et ensuite, ce type de charge a tendance à abîmer plus que de raison votre précieuse batterie sur le long terme. Bref, ce type de technologie est un plus qui peut vous permettre de charger seulement votre smartphone le matin quand vous êtes à la douche (c’est du vécu).

Un dernier point, tout bête, mais capital pour certains, est à examiner : la batterie est-elle amovible ou non ? Petit piège : certains smartphones autorisent leur propriétaire à ôter leur coque dorsale, mais leur batterie est fixée (elle peut être retirée du corps de l’appareil, mais dans ce cas, c’est à vos risques et périls). Si vous comptez conserver longtemps votre téléphone, et en gardant à l’esprit que la batterie est souvent le premier composant à vous abandonner lâchement, c’est un point à vérifier (même si désormais un smartphone avec une batterie amovible est très rare). Si vous préférez un téléphone ultra-fin, il y a toutes les chances pour que sa batterie soit inamovible.

Les détails qui peuvent tout gâcher

Voici pour finir quelques détails auxquels il faut faire attention.

La ou les cartes SIM : si la majorité des smartphones sont simple SIM, de plus en plus d’appareils permettent d’embarquer deux, voire trois cartes SIM au sein du même téléphone. Ne rêvez pas pour autant. Le téléphone ne captera pas autant de réseaux 3G/4G qu’il a de carte SIM. La première carte SIM fait généralement office de carte principale et permet à la fois de recevoir les appels et d’utiliser Internet. Toutes les autres cartes SIM ne serviront ensuite que pour des appels ou des SMS. Enfin, faites attention au format de la carte SIM. Si les smartphones de 2017 sont très majoritairement nano SIM, certains embarquent encore des slot microSIM. Ce serait bête d’avoir un nouveau téléphone et de ne pas pouvoir l’utiliser à cause d’une carte SIM trop grande.

Il existe deux grandes catégories de technologies dual SIM : dual active (DSDA) ou dual stanby (DSDS). La première catégorie permet de recevoir un appel sur une carte SIM pendant que la seconde est déjà en ligne alors que ce fonctionnement est impossible en mode dual stanby. Au niveau de la data, il sera parfois possible de spécifier la carte SIM à connecter au réseau 3G/4G alors que dans d’autres cas, cela dépendra de l’emplacement physique de la carte SIM, empêchant de switcher à la volée. D’autres smartphones, comme le Huawei Mate 10 Propeuvent récupérer de la data des deux SIM en même temps.

La compatibilité 3G/4G : On ne l’a pas spécifié dans ce petit guide, mais il faut systématiquement vérifier la compatibilité avec les réseaux 4G du téléphone. Si la compatibilité avec la 4G ne pose aucun problème avec les smartphones vendus sur le sol français, c’est toutefois beaucoup moins évident pour les smartphones importés, qui sont parfois compatibles avec des bandes de fréquences 4G spécifiques. Pour savoir si ces smartphones sont compatibles avec les bandes de fréquences 4G française nous avons rédigé un guide des écueils à éviter lorsque l’on importe un smartphone d’Asie.

La compatible 4G+ (LTE Advanced) : la plupart des smartphones haut de gamme propose la 4G+. Nous avons dédié un article à ce sujet. Comment ça marche ? Les opérateurs agrègent les bandes de fréquences 4G pour augmenter les débits. Il faut un smartphone avec un modem 4G compatible et plusieurs antennes. La plupart des smartphones Android au-dessus de 300 euros sont compatibles avec cette technologie, néanmoins il y a des exceptions. Par exemple, un smartphone chinois qui n’a pas toutes les bandes de fréquences (voir plus haut). Mais c’est aussi le cas des derniers smartphones dual SIM, qui ne peuvent pas agréger les bandes.

À lire sur FrAndroid : Dossier : Que va nous apporter la 4G+ LTE-Advanced ?

Le DAS ou débit d’absorption spécifique : on ne va pas vous expliquer en détail ce qu’est le DAS. Ce qu’il faut retenirc’est que plus le DAS est élevé, plus il est nocif pour la santé. En France, le DAS maximum autorisé par la loi est de 2 W/kg, maximum censé être bénin.

À lire sur FrAndroid : Classement DAS : quels sont les smartphones qui émettent le moins et le plus de radiations

Le SAV : tous les SAV des constructeurs ne se valent pas. En effet, la grande majorité des constructeurs préfèrent maintenant sous-traiter le SAV. Comme nous l’avions vu dans notre dossier sur les écrans cassésla prise en charge téléphonique varie grandement d’un constructeur à l’autre : numéros surtaxés, attentes longuettes et autres formulaires à remplir peuvent changer du tout au tout.

Pour finir

Gardez bien en tête que le choix d’un smartphone n’est pas anodin. Si vous l’achetez nu il vous coûtera forcément une ou plusieurs centaines d’euros, c’est un objet qui vous accompagnera partout au quotidien et à ce titre ses défauts vous sauteront plus rapidement aux yeux que n’importe quel autre objets technologique. D’une manière générale, voici les derniers conseils que nous pourrions vous donner :

  • Commencez par vous poser les bonnes questions : Quel prix maximum je désire mettre dans mon téléphone ? Quelle est la taille maximum d’écran que je désire ? Quelle est la taille maximum de la coque ? Pour quels usages mon smartphone va me servir : regarder des vidéos ? Utiliser les réseaux sociaux et se connecter à Internet ? Travailler ? Jouer ? Ce sont vraiment les premières questions obligatoires à se poser et c’est seulement ensuite que vous pourrez commencer à cibler des appareils et vous intéresser à leurs fiches techniques.
  • N’hésitez pas à mettre un certain prix dans votre téléphone. Cela ne signifie pas qu’il faille obligatoirement mettre le plus haut prix. Si pour vous, le smartphone est un élément important et indispensable dans votre vie, fixez-vous un budget d’au moins 250 ou 300 euros. En 2017, les smartphones de milieu de gamme compris entre 200 et 400 euros sont d’excellente qualité et peuvent facilement durer deux à trois ans. Et si vous voulez un bon téléphone avant un téléphone dernier-cri, n’hésitez surtout pas à regarder les smartphones haut de gamme de l’année précédente. Leur prix a souvent été divisé par deux en 12 mois !
  • Avoir un téléphone puissant, avec un bel écran et la dernière version d’Android, c’est bien, mais avoir un smartphone qui nous plaît, c’est encore mieux. C’est peut-être ce qu’il y a de plus dur dans le choix d’un smartphone aujourd’hui : allier puissance, capacité et beauté. Il y a toutefois plus de choix que jamais et dans toutes les gammes de prix. Vous trouverez forcément votre bonheur !

Découvrez d’autres guides d’achats réalisés par la rédaction

Retrouvez notre guide des meilleurs smartphones Android à cette adressemais pas seulement :

Vous trouverez nos autres guides d’achat sur cette page.

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Buying Guide: How to Decrypt the Datasheets of Smartphones 

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