I'm a big fan of some of their higher-end devices and likewise this is a reassuringly solid construction which feels good in the hand. Selfies suffer from quite a lot of chromatic aberration, but they’re clearly a cut above naff VGA camera shots. SIM card The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services. The low resolution does mean that text and icons have a definite fuzziness to them, which is disappointing to see.

That's unlikely to be devastatingly rapid, but it should be enough for the sort of basic tasks a super-budget phone will be used for. MSM8916: 64-Bit Cortex-A53 Quad-Core with an Adreno 306 GPU manufactured in 28nm» Further information can be found in our Comparison of Mobile Processsors.

In our video loop test, which involves playing an MP4 video on look until the battery drains down to nothing, the Huawei Ascend Y550 lasted for 12 hours 15 minutes. In the US the FCC tests and sets the SAR limits for all mobile devices, which are controlled by the CTIA.

Specific Absorption Rate (SAR) The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg. It looks and feels cheap, but that's not really an issue, and the Ascend Y550 is solidly made - I reckon it's capable of taking a few knocks in day to day usage. Most notably, it removes the app tray, forcing you to keep all your apps and widgets scattered across the multiple homescreens. However, if you head into the settings again you can actually dig down into “Storage” and actually alter the default storage location to be the SD card.There’s a data package monitoring system, notification manager (to enable or disable certain apps from popping up notifications) and a backup system. While we’re yet to see how all that many 2015-generation chipset phones perform in stamina terms, the Huawei Ascend Y550 is a sign of a longer-lasting future.