Microsoft Band 2 is your answer. Standalone gps, standalone music playback, etc. you don't need to take your phone with you. It has a hr sensor and even measures altitude changes for the pesky hills. When you're done running it can show you your stats via the watch, the web, iPhone, android, or windows phone. It's a really nice little device.
Slashdot Mirror
Microsoft Band 2 is your answer. Standalone gps, standalone music playback, etc. you don't need to take your phone with you. It has a hr sensor and even measures altitude changes for the pesky hills. When you're done running it can show you your stats via the watch, the web, iPhone, android, or windows phone. It's a really nice little device.