Review: Garmin Forerunner 15

Intro, battery life, screen and buildThe Garmin Forerunner 15 is Garmin's second cheapest running watch, and the cheapest to support heart rate tracking. Shop around and you'll find it for under £100/$100 (or about £20/$20 more with a heart rate strap), which is about half the price of the Garmin Forerunner 225. It's also less than some fitness trackers that do little more than tell you that you've walked for 10,000 steps and then had a sleep. And while it doesn't do sleep tracking,