Does V21 support display real-time network speed on the status bar?
Does the front camera support Eye Autofocus？
What about the photography effect of the front camera?
Does V21 support extended RAM？
Can I take selfie videos under Slow Mode via Front Camera on my V21？
What is Personal Facial Features function? How to use it?
How to output Photos with 16MP in RAW + JPG format?
What is AI Scene Recognition? How to enable it?
How to use Double exposure function？
What is the maximum frame rate of video can V21 support to output under Double-view video mode
Why FaceBeauty option of Double-View video mode is grey?
Which camera-pairing option of Double-View video mode does V21 support?
What is Double-Views video? And how to use it on V21?
What is Ultra Stable Selfie Video?
Does V21 support 4K video？
Does V21 support Super Night Selfie?
How to make the dual selfie spotlight and the Aura light up together when V21 is taking selfies?
How to use Dual Selfie Spotlight?
What camera lens does V21 camera module consist of？
Which Funtouch OS system does V21 adopt？What about the interface design？