I am currently using this one . Video quality is pretty good and you can see the footage on its mobile app. It's by Anker.

I would also recommend getting an endurance card rather than normal sd card. Like this one.

No worries!

Roav A1 $55 on Amazon and has 10% off coupon on it too (drops it to $50+tax+shipping)

Also, check out Roav website find one you like and search it on Amazon