You should get a new screen assembly when your Xiaomi Redmi 4X screen old, touch response issues. The high quality screen replacement and digitizer may be the part you are looking for.
Screen Size: 5.0 inches
Color: Cherry Pink, Champagne Gold, Mate Black
Compatibility: Xiaomi Redmi 4X
Phonelcdwholesale.com is the best place to buy for Xiaomi Redmi 4X screen replacement LCD. Each item was double tested before shipping and 12 months warranty.