Hi friends. I want to say about my mi a1 today. I loved to use this. I am happy to say that my famliy is mi family. We are all had only mi products. Mi A1 battery is very good. Its have good sensonrs, compass and more feauters . Its working properly very good. I guarenteed to Mi a1 . Mi A1 looking preety and very easy for using. Its have fingerprint lock, Face lock.