Helmet cameras what's good

Hi just looking for some advice what’s the best helmet camera for around 100 dollars?
Hoping to get something which will last about 1 to 1-1/2 hours and can be set to overwrite old footage? Any ideas

Ive been looking into something similar and have come across this, seems to fit the bill.

Mobius 1080p ActionCam

some good sites on it

Pre-release Peek at the new Mobius ActionCam - Post #1 updated with any new info! - RC Groups

808 Car Keys Micro Camera Review - Version Mobius Actioncam