> 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 believe it's pretty smart. Keep the core functions intact when the battery goes flat.
ProTrek series pioneered this "power stages" feature back in the day. The watch selectively powers down capabilities to keep core functions going for much longer.
ProTrek series pioneered this "power stages" feature back in the day. The watch selectively powers down capabilities to keep core functions going for much longer.