Which type of Battery cover design does V21e adopt？
Does V21e support extended RAM？
What is the battery capacity of V21e? What charging technology does it support?
Can I take selfie videos under Slow Mode via Front Camera on my V21e？
Does V21e support Custom watermark？
Which Funtouch OS does V21e adopt？What about the interface design？
How to output Photos with 16MP in RAW + JPG format?
What is the maximum frame rate of video can V21e support to output under Double-view video mode
What camera lens does V21e camera module consist of？
How to use Steadiface Selfie Mode on V21e?
How to use Movie Camera on V21e？
Does V21e support 4K video？
Does V21e support Super Night Selfie?
Which camera-pairing option of Double-View video mode does V21e support?
What about the photography effect of the front camera?
What is Double-Views video? And how to use it on V21e?