izzit all k810 phone video record is very blur or only my phone get problem?
Can anyone kindly teach me how to make it clear a little bit?

The quality of the video recording is a major drawback for K810. The videos taken with K810 are captured at the QCIF resolution (176 x 144) and most other mobile phones now provide 640 x 480 video record modes.
Hope the K810 video stabiliser can help you a bit.

thx for helping me ^.^