I am using Redmi 4 for one year. Phone battery is good. But small disadvantage in this phone no turbocharged battery. Full battery will charge take time 3-4 hours. In rainy season unfortunately phone fell into small rain drops, automatically phone network signal problem came in home. In outside signal is normal. All performance is good. But I want improve this phone for small diffects. Performance of this phone overall good.but iam facing signal problem in my home. Overall I am in redmi world. Thank you.