vivo is a Chinese company known for smartphones. Its Watch range adds wrist based health tracking and sports modes, with availability and features differing by country and model.

How it works

Green and red lights shine into the wrist and measure changes in reflected light as blood pulses. Software uses these signals to estimate heart rate and blood oxygen. Motion sensors track steps, workouts and sleep, while satellite positioning records outdoor routes. The vivo Health app turns the data into stress estimates, sleep stages, activity and breathing guidance.

‍Key considerations

Wrist fit, movement, tattoos, cold skin and poor contact can affect optical readings. Sleep stages and stress scores are calculated estimates, and menstrual cycle predictions depend on entered information. Some monitoring modes must be enabled manually and shorten battery life. vivo watches are consumer wellness devices and do not diagnose heart, respiratory or sleep conditions.