To guide you, there are several criteria to consider before you decide. Whether it is the operating system, the photo quality, the size of the screen or the internal memory of the device, you will have to know beforehand the use of this type of smartphone in your daily life. If you are going to use your smartphone for work, you are not going to take the same model as someone who will use the device to play, or take the same model as someone who only uses the phone to call somebody.
[b]A constant evolution[/b]
Since the launch of Apple's first phone (the iPhone), the mobile phone continues to evolve constantly every year. In the past, mobile phones were becoming more compact, and the smaller ones were the most popular. Today, the mobile phone market has changed since the appearance of the smartphone. This device used to send SMS and MMS, or to make calls, has become a true jewel of technology. It is now a device with a big screen more and more powerful, tactile, and that allows you to surf on the Internet, sometimes more quickly than from a computer. Some smartphones even have become true portable cameras, with a quality that continues to improve day by day. Finally, some smartphones even allow you to make 360 ° photos, share your private moments on live on Facebook, or even serve as a boarding pass for your travels.
[b]Pay attention to the device's memory[/b]
ROM memory must really be taken into account, to avoid unpleasant surprises. A smartphone whose memory is full may run slower and you will have to constantly clean up your data to add applications, photos or music. There are devices that have a memory up to 128 GB. For users who do not store a lot of data, some applications, music, photos, 16GB of memory may suffice. We recommend 32GB to 64GB for conventional users and more than 64GB for professionals and intensive users. Whatever your type of use, you should know that a large number of smartphones offers an SD card reader, enabling memory expansion. However, you will need to check the extension limit of your mobile: if your card is too powerful you will not be able to use it. You can compare different models before choosing which one you will buy.