Hi, I am using the smart phone for last 4 months and it is flawless.
Smart features : 1) Great battery life - Stay 2 days easily with full utilization.
2) Finger print sensor - very easy, fast and accurate.
3) Ram and Storage - faster and more storage.
4) Ir Blaster - it is the best of it. Now I can control My a/c and tv with single remote.
5) wireless dislpay - with my smart TV
6) Software - it comes with miui 8 and further update comes with 8.1 .very user friendly and smooth to operate.
All other sensors and touch is good working.
Lastly it is made in India.