3 weeks ago I purchased my first android phone, because I use windows phone. Redmi 3s is a best phone under 7k it has all the things that todays generation want camera, RAM, ROM, HD Screen, and good battery life with 4000 Mah and good in style. in starting its working nice but after 1 week its heating when you play the game or surf the net more than half an hour. I am facing signal problem also it receives poor signal. I used 3 sims in it JIO, Airtel, BSNL. but it sucks. as it comes with 4000 mah battery but I usually works for 1.5 days. in Conclusion I say its best phone comparison to other company in under 7 k budget. if you dont want to face these issues go with Redmi 3s Prime or Note 4