i've got the samsung one... got it as a grad present. the helmet cam is alright, but like everyone says, the battery life does suck (only for the helmet cam itself... the camera has good battery life though) it is only 512 internal memory which amounts to about 15 minutes of footage on the highest setting but it does have a MemoryStick slot, so you can buy up to 2 GB of extra memory. its a decent camera, real small, and decent price. unless you really do a lot of helmet camera shit or plan on filming a short video/dvd, the samsung is a decent option.