Pros: It was cheap. $1.50 after the $20 rebate. It works. I have a Samsung Note 3 and it has been working according to specs so far. Battery life is keeping up 5-6 days. I charge it for about 20 min every other night or so before going to bed and that has been sufficient to keep it charged up.

Cons: If you paid $70, it's not worth it.

Overall Review: Get it before they run out. It's a nice way to have a pedometer without having to remember to keep your phone on you at all times. It automatically syncs which is nice. If it looses it's sync, it's easy to resync.