Redmi 3s is a good product at this price
Its sound quality is great, it has 2 speakers built in the bottom of this smartphone, to provide good sound.
This device is very user friendly to me, as I am using this device from past 6 months, and till now I doesn't have any kind of complaints with it.
The style of this smartphone is very good, as you were getting fingerprint sensor on its back below camera and the look of this smartphone is awesome for me it looks very beautiful from back as well as from front also I've purchased gold colour of this smartphone gold colour looks very great,
The Mi phones have some special features build in it, this smartphone has features like
1) ( one handed mode) you will able to touch ever side of phone with one hand with smaller screens
2) ( Quick ball) Quick ball is the feature of an iphone of your back button or home button is not working you can use quick ball feature in place of back button and gone button
The backside look of this phone is very awesome
In the price range of Rs.7000 indian rupees
It's the great smartphone