Xiaomi is always known for its budget segment phones which gives you the feel of high end phone.redmi 4 is one of them.
Specs
Battery 4100 mah.will last u more than full day
Camera.13/5 megapixel.will give you average images and slight dark in low lighting
RAM.3 gb ram gives you easy day to day multitasking
Hybrid sim slot.may be good or bad according ones own choice.i prefer both sim n memory so I m not a big fan of hybrid sim slot.
Pros
1.good in day to day multitasking
2.more than a day battery life
3.better built quality
4.compact
5.finger sensor works fast
Cons
1.average camera
2.low performence or lags in high end games
3.hybrid sim slot.64 gb costs 11000 if want to spebd this much then go for xiaomi note 4