02-20-2020 21:34
02-20-2020 21:34
I have a sleeve and the heart rate monitor and the sleep tracking don't work. Is it because of my tattoos???
02-20-2020 21:51
02-20-2020 21:51
Hmm that's very possible, tattoo ink is metal and the higher the saturation of ink makes it harder for the optical sensors to see through your skin. This may sound a bit batty but you could try putting the fitbit on your ankle or any other area that doesn't have a tattoo just to test? Also do you get an HR reading while awake? I am also suspecting it could be a hardware/software issue. If your Fitbit is new then give it time to read info for a couple of days.
02-21-2020 08:22
02-21-2020 08:22
Heart rate uses the Green light, the Oxygen sensor uses both Red and Infrared light.