Review on Amazfit GTS 2e Smartwatch with GPS and Alexa for Men and Women - Fitness Tracker with 90 🕰️ Sports Modes, Heart Rate and Blood Oxygen Monitor, Waterproof - 14 Day Battery Life, Compatible with Android and iPhone (Black) by Eunu Aroha ᠌

Be careful ! If you have a tattoo on your wrist (under the clock), then the clock DOES NOT COUNT the pulse. TK Heart rate sensors used in wrist gadgets are based on optical technologies. The LED shines through the skin through, and the optical sensor reads the indicators directly from the capillaries, the movements of which correspond to the pulse. A tattoo that clogs the skin pores interferes with the translucence of the skin and the recognition of capillaries.