Aiptek X5's video quality is average and its GPS option has never been officially made pubic. I have replaced it with FineVu Pro and it works far better than X5.
Seems to be a nice dash cam, but no one so far has discussed it.
http://www.aliexpress.com/item-img/Korea-Technology-100-Original-Matego-MG300W-2-7-Touch-Screen-Full-HD-1080p-Car-Safe-Driving/822047974.html