I have a Withings watch which has about 30 days battery life. Granted the display is tiny but I love that it looks like a normal watch and gets out of the way.

I have a Withings watch which has about 30 days battery life. Granted the display is tiny but I love that it looks like a normal watch and gets out of the way. I'd buy a Pebble if it hit 14d+ battery life with health tracking features.