Fitbit Sense

Fitbit also has a variety of proprietary faces and a bunch of well-designed, and less well-designed, user ones. That didn’t really matter to me, though, since the Sense can only measure your SpO₂ blood oxygen levels while you’re sleeping, and if you have the specific SpO₂ face loaded on your watch.

It doesn’t take much time to load a different face on your watch, but I would not be able to remember to switch it back before going to bed, so I just left it on.Buy The Fitbit Sense Best Price Online from CELLULAR KENYA,Nairobi

The Sense’s other new biometrics are stress measurements. Fitbit claims that electrodermal activity, or EDA, as measured by electrical pulses in your sweat, are a reliable indicator of stress. You measure your EDA by tapping to take an EDA scan and placing your palm over the metal bezel. The Sense will measure how many EDA responses you get in the space of two minutes.

There’s long-standing research to back this up. Skin conductivity has long been used in polygraph test to measure arousal, along with heart rate and respiration. The Sense combines this EDA scan with nine other inputs, including activity and sleep quality, to give you a Stress Management score of 0 to 100. The higher the score, the better prepared you are to handle stress.

If you can help others, that might make the Sense worth it for some people, but right now, the Sense seems like an overreach, especially if you find the SpO₂ readings to be unreliable, like me.