"""
Use USB charging for the heart rate monitor, step tracker and notifications. Time display is powered by solar charging alone when the battery runs low.
"""
I have a gshock already (GM-B2100D-1A) and I love it - I especially love that it should never be opened, always just works, and it looks ok too (:
I think it's nice that the watch falls back to effectively unlimited watch-mode instead of shutting down completely because the heart-rate tracker ate up all the battery.
""" Use USB charging for the heart rate monitor, step tracker and notifications. Time display is powered by solar charging alone when the battery runs low. """
I have a gshock already (GM-B2100D-1A) and I love it - I especially love that it should never be opened, always just works, and it looks ok too (: