Microsoft Band 2
The Microsoft Band ($200) works with iPhone, Android, or Windows phones and is designed to be more than a fitness tracker. While it does track your calories, sleep, and steps, the band is also designed to send you email and call notifications, calendar alerts, and social media updates. Add to that its robust fitness capabilities — including GPS mapping, continuous heart-rate monitoring, workout coaching, and sensors that measure the sun's intensity — and you may start to wonder what the Band can't do. Check out more about the Microsoft Band's features on POPSUGAR Tech.