Surprisingly: the most popular Apple and Samsung branded phones failed 1 year after purchase (4%) at a rate 1/3 higher than Xiaomi and OnePlus phones from China (3%); after 3 years, Apple and Samsung failed 1.25 to 1.5 times more than Xiaomi (4%) at 9% and 10% respectively; after 5 years, Apple and Samsung failed 3 times more (12%) than Xiaomi (4%).
This shows that Xiaomi is the most reliable phone brand in the world today, with a 96% failure-free rate after 5 years. So far this year, Xiaomi has released 7 phones, at varying prices, that are worth considering.
The least reliable phone brand is Sony, whose percentage of failures 1 year after purchase (5%) is in the middle of the pack, but it is surprising that more than 1 in 5 (22%) Sony phones have failed after just 3 years, which is a real concern.
The most common faults of mobile phonesBattery problems (35%)
Without doubt the biggest problem affecting smartphones is battery-related. This includes rare cases of swollen or failing batteries, but most commonly the battery life deteriorates significantly in a short period of time (25% of all reported faults). Less than 1 in 10 users experienced their phone losing power quickly or charging becoming very slow or sluggish.
Overall, the phone's battery life is improving. However, if you find that things are getting worse, there are steps you can take: turn it off when you're not using the internet, or dim the screen brightness for an immediate power-saving effect. If your battery is too poor, consider replacing it rather than upgrading your entire phone.
Slow phone speed (9%)
The 2nd most common fault with your phone is that it becomes slow or sluggish over time. The easiest way to improve this is to restart your phone every few days to clear the memory and applications running in the background. Also, avoid installing a lot of apps and uninstall any that you don't use. You should also update your software regularly, or install updates as soon as they become available, including important security patches and bug fixes as well as feature optimisations to help your phone run more smoothly.
Phone crashes (6%)
The 3rd most common failure is a phone crash - where an application closes unexpectedly or closes on its own. Similar to when your phone feels slow, try restarting your phone and uninstalling the apps you don't need. Make sure apps are also updated regularly. You can turn on automatic updates in the app shop so that you don't have to manually check for updates.
Phone freezes (5%)
Only 5% of respondents experienced a dead smartphone. If this happens, force a reboot according to the manufacturer's instructions. If this keeps happening, try freeing up some of your phone's memory by deleting apps, pictures and videos that you don't want to keep. Or add a micro-SD card to expand your phone's memory (if your phone is compatible with it). If this doesn't work, as a last resort, you may need to factory reset your phone.
Broken screens (5%)
Many of us are concerned about breaking our screens when we drop our expensive phones. While this is not a mistake, it has happened to 5% of survey respondents and fixing a broken screen is usually expensive. As a precautionary measure, you can use a case to protect your smartphone from accidental drops.