Mi4 invented by xiaomi A Chinese brand.
its has 2 gb ram and 16gb internal memory.
camera quality is good.
Because of metal body this phone is tough.
Talk about looks this phone is not looks very good but yes formally says its look good.
I used this phone From last 1 year and I really liked it because of its features.
when I bought this phone I wasn’t sure that it is a good but after use this I realize that it is good
Let me tell you about its battery life.
the battery life is good.If you use phone contiuesly with data services its runs max 7 hours.
And if you use this phone for watching movies when your data service is off than you can watch 2 or 3 movies continuesly