The good news is that Amazon has just dropped the 51mm Solar Sapphire model to $849 for Black Friday, down from its regular $1,199 price. That makes it an all-time low that brings the grail of sports ...

Wearable disruptor Amazfit's excellent fitness tracker, which scored a perfect five stars on T3, has just received a new software update that adds even more tools for runners and fitness enthusiasts.