This new fitness tracker called Pulse O2 can be worn like a watch and can monitor a person’s heart rate and amount of oxygen present in the blood.

It’s a small slab with rounded edges. Its blue light up makes reading easy while on the go and in all kinds of lighting conditions. It can also counts steps and the calories burned and can track sleep.
It tracks steps and its automatic mode also tracks intense activity such as running sessions. Now, one also read it vertically when using it with the wrist-mount bracelet accessory.
The heart-rate monitor on the rear side gives details about heart rate as read through the blood vessels in your fingertip. The device costs $120 and one can go either for black or blue version.
Source-Medindia