What is Green Light In Apple Watch?

“Here is an in-depth guide on what is Green Light on Apple watch and how to turn it off.”

How to turn off Green Light on Apple Watch

Apple Watch is the most advanced smartwatch with many advanced features such as heart rate, ECG, Blood oxygen level, heart rhythm, and much more. 

But have you ever annoyed with the Greenlight on the Apple watch? If your answer is yes, then this article is for you. In this step-by-step guide, I will explain to you how to turn off the green light on Apple Watch in a few seconds.

How to turn off Green Light on Apple Watch?

If you turn off green light in Apple Watch, it can not track your heart rate. When you turn off Apple Watch green light, you turn off the heart rate tracking feature by disabling the heart rate sensor.

Here is the step by step guide to turning off the green light in Apple Smartwatches. 

Green light on Apple watch settings
  1. Open Apple Health App on your Smartphone.
  2. Now tap on “My Watch”.
  3. Scroll down and locate “Privacy.”
  4. Look for  “Motion and Fitness” and tap on it.
  5. In the new window, toggle the button to turn off “Heart rate”.

You can also turn off green light in Apple Watch by turning off heart rate in the Starva in the Apple Health App.

Why does the green light is always on even when the watch is not on my wrist? 

It is disturbing if your smartwatch’s green light is not turning off even after removing it from the hand. It also drains your battery faster.

Here are some fixes you can try without ruin your guarantee or warranty of your Apple watch. 

Before you go ahead, make sure that you have the latest version of Apple Watch OS and Apple Health App on your smartphone.

  1. Please turn off your Apple Watch and turn it on again. If it does not work, then go to step no:2.
  2. Turn off Heart rate on settings at “Privacy” and turn it on after a couple of minutes.
  3. If it does not work, then turn off Heart rate at starva and turn it on after a few minutes. 
  4. Unpair your Apple Watch from your smartphone and then pair it again. Still not fixed? Then try the next step.
  5. Reset your Apple Watch. But resetting the smartwatch will permanently delete all your data from the smartwatch.

If all these steps failed to fix the issue, you have to contact Apple customer support for further assistance. 

How Apple Watch measures your heart rate?


Apple Watch uses optical heart rate sensors to measure heart rate or pulse rate. A green LED light, and light-sensitive photodiodes are the major components in the Apple watch heart rate sensor. 

The technology used to measure heart rate in Apple watch called photoplethysmography. The technology is simple. 

The blood absorbs green light as the colour of the blood is red. When the heartbeats, the heart pumps more blood into the blood vessels so that the blood will absorb more green light during every heartbeat. 

Apple watch sensors accurately measure how much green light is being absorbed during each heartbeat with photosensitive electrodes, and thus it detects heart rate. 

You can read more about this technology Apple Smartwatch heart rate page.

Are the green lights bad for you?

The intensity of LED light is minor, and it does not generally cause any skin burn or other health issues. It is just like any light in your home or office. 

Final Words

As I said earlier, turning off green on your Apple watch is not recommended as it stop tracking your heart rate. However, you can turn it off if you want to save the battery for long.

I think that this step-by-step guide on How to turn off Green Light on Apple Watch was helpful for you in turning off green light on your Apple watch.

Saneesh VS

I’m Saneesh VS. I’m a Registered Nurse by Profession, but my passion lies in Gadgets like smartwatches, fitness trackers and fitness. Nothing makes me happier than being able to share my knowledge to help people make informed decisions on what they need to buy or use in their everyday lives.

Leave a Comment