Garmin's next generation fitness tracker trades in a year's worth of battery life for notifications, a slimmer design, music controls, and more.

For some, the trade-off is a no brainer, for others, not so much.

Once you put on the Garmin vivosmart, all you have to do is link it up with the Garmin Connect app on your iPhone. Once that's done you can not only set goals and view activity right on your wrist, you can also view notifications from your iPhone, receive inactive alerts, and lots more. But all of that matters little if the hardware and software don't do their job. The results? Let's find out!