Fitbit Sense giving red and green lights

[SGarg]

Hello dear Fitbit community,

My one week old Fitbit sense is giving green and red lights together at back.

Is it normal? The videos I have seen on you tube all shows both lights as green

[Odyssey13 · Accepted solution]

Hi @SGarg  what you're seeing is perfectly normal. This is from a post made by a Fitbit Moderator:

"your watch heart rate sensor flashes green LEDs to detect your heart rate reading. On the other hand, the SpO2 sensor flashes red and infrared light to estimate how much oxygen is in your blood. Even if you're not wearing your watch, you might see these green or red lights when moving or touching your watch as the sensors will detect the movement and try to track your data."