I looked several times for the battery life but couldn't find it. Actually, for me, the 2 day battery life is the killer feature - it means I'm almost certain to get a full 16 hours out of it - which is pretty damn hard to believe given it has a GPS radio in it. That's something the Apple Watch won't have - which means if you are going out for a run - Microsoft Band will be there for you, but you won't be able to track with the Apple Watch.
The specs on the main page say "48 hours of normal use; advanced functionality like GPS use will impact battery performance." There's also a in the support section talking about extending battery life: http://www.microsoft.com/microsoft-band/en-us/support/hardwa...
