I tested the Cosmo JrTrack 4 kids' smartwatch and found a lot of great features, but it's essential to know exactly who it's best suited for.

Google's Fitbit Ace LTE is full of whimsy, fitness-centric games, and useful security features - and it's on sale for $180.

Take Videos & Selfies: There is a HD camera (300,000-pixels) on the top of kids smart watch, children can take photos and record videos, capture their joyful moments with family or friends ...