The Tracker: Garmin Vívosmart HR Activity Tracker Regular Fit ($84)
The Rating: 3.9 stars
Why People Love It: In addition to tracking all things fitness related, this device can also receive texts, calls, emails, and social media notifications. This reviewer loved that it has so many functions. "Personally, I really like getting notifications and being able to check the weather without having to dig out my phone. Plus, the Garmin app is getting better every day. I lost about 20 pounds over six months."