Not hijack the thread, but it's all in the same direction...The arm band HR monitors are way more comfortable than the chest straps. One could argue the accuracy is better for the chest strap since it actually makes an electrical connection to the body and the arm band uses flashing led's...but the tech has gotten way better for the led devices; Wahoo and Scosche, don't know about Polar or Garmin, are using way better sensor tech. I have the Wahoo, works for me. The Scosche Rhythm my wife uses has all kinds of settings, records sessions on the device and can do heart rate intervals. I'm pretty sure the new Apple Watch does a lot of what the Rhythm does and uses the same sensor; plus you get an Apple Watch.
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