First truth is that 'you can't trust your standard commercial smartphone'. This is why open source os is so important today. Second, the evolution of Xiaomi pr

First truth is that 'you can't trust your standard commercial smartphone'. This is why open source os is so important today. Second, the evolution of Xiaomi products is very bad: At the beginning, their smartphones were great because they used a MIUI version that was very 'pure': no crapware, no junk 'preinstalled apps', no call to home, interface that was customizable like you wanted. In the first place, this is why people were buying the devices compared to Samsung phones with preinstalled and non removable apps like Facebook. Now that Xiaomi became a leader on the market and has quite an important market share. They completely go the Samsung way with stuffing phones with a lot of junk and sometime deceitful one.