Get that heart pumping external HR monitors for iPhone and Apple WatchThe Apple Watch has an excellent oximeter-based heart rate monitor for tracking your day and basic workouts, but it's not perfect for more endurance or weight-based activities. For those tough workouts, you should consider an external heart rate monitor like Scosche's Rhythm+ Monitor Armband.
Best for Most: Scosche Rhythm+ monitor armband
The water-resistant (IP67) device connects to an adjustable neoprene strap. While you can wear it anywhere on your arm, Scosche recommends the forearm. (I did my initial tests with it in that location, as well.) It uses an 8-hour rechargeable battery, so you can plug it in after workouts as you might with an Apple Watch.
Both the small grey tracker and strap are slim and stylish, given that you'll likely be wearing them in a visible location on your arm. You can slip a shirt on over the Rhythm+ if you want to hide it, but it's a nice enough looking tracker to leave it visible. It does look a little goofy when both the Apple Watch and tracker ar...
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Get that heart pumping external HR monitors for iPhone and Apple Watch
