Bought specifically for running. I hated walking around with my phone it was too big and clumsy and this fit perfectly at only $22. As others have said, even if it breaks or is lost, for around $20 it's no big deal. I use the Microsoft Band with my MP3 player and I feel pretty free while running. Tape tracks of distance and speed and MP3 player clips deliver my musical motivation with almost no weight and no glitches! A few small bumps (hence the 4 stars). Headphones. I actually liked the earhook earphones, but after about 6 uses the earphones only started playing out of one ear unless I matched the plug to the MP3 player. Well I took extra headphones and they work fine. The other knock (that others have reported) is the random forward/backward toggle when adjusting the volume. It's sometimes difficult to get finger-touch accuracy when you're running, but it's really just a minor annoyance for me (very overcome for just $20).
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