Fitbit this week launched the Fitbit Ace 3. It’s the brand’s next generation activity and sleep tracker that makes it fun and easy for kids ages 6+ to get active and build healthy habits with the whole family. Expanding on the features kids love most about the Ace family of trackers, the Ace 3 introduces more animated clock faces and new accessories to motivate kids and show off their personal style. With up to 8 days of battery life in a swim-proof design, Ace 3 can keep up all week long. At the accessible...