Apple Watch Sensor burns

Recently purchased a cellular Apple Watch series 7 and after a few week of wearing I'm noticing that my wrist is red and begin to burn and blister on the skin where the sensor part sits, no marks where the strap is in contact. Is this a known problem and any solutions?

Posted on Oct 3, 2022 1:44 PM

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Posted on Mar 16, 2023 6:43 AM

Hello, this is not an Apple Watch issue. I do not own any Apple products, but came looking for "Apple Watch Wrist Burn" and landed here, because my Garmin watches have done the same thing three times. Replacement of the watch doesn't really help. Like other respondents here, the issue may not arise for a long time, or it may come back after a short while or a long while. Every sports watch with wrist sensors I have investigated has this same problem.


A dermatologist may not be able to tell you more than that you have contact dermatitis. There doesn't seem to be a solution, despite all the manufacturers being aware of the problem.


Advice from multiple sources says to scrupulously clean the sensors and get them completely dry before putting the watch back on (a completely dry) wrist. Don't use perfumed, scented soaps or moisturizers on the wrist. Don't leave the watch on if you are going to have a wet wrist (kind of difficult if you run and sweat...the idea is to remove the watch as soon as possible after a sweaty session).


The basic advice is to keep the back of the watch clean.... There are myriad articles online like this linked one suggesting what to do: https://gadgetsandwearables.com/2023/01/24/fitness-tracker-rash/


I hope this helps. This is a very frustrating problem for all wrist sensor wearers...you never know if you're going to have it happen to you.


I won't be back to reply to comments...as I said, I'm not an Appleite. Good luck/

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204 replies

Nov 20, 2023 5:23 PM in response to Molimu

Molimu wrote:

1. What I have learnt about the Apple Watch.
never let your wrist get wet or sweaty under the sensor - dry it straight away and remove the watch until the skin is very dry.
2. don’t wear the watch 23 hours a day - give it a rest.

Excellent advice! I would add one other thing. Avoid lotion or other products under the watch. The combination of product, heat and friction can cause a rash.

Nov 16, 2023 12:01 PM in response to DH94-

I’ve had that happen, too. About a year ago with series 7, after I started tracking sleep so was wearing watch almost 24/7. Wore the watch for a month on other (right) wrist while left wrist healed, and stopped sleep tracking. Still, a darker brown patch of skin remains on my left wrist. Noticed increased reddening recently on left wrist under watch, after new watch OS 10 arrived. I just got a series 9 watch, and have turned off all sensors except heart rate. Fingers crossed that will help. I may use other sensors occasionally but will not leave them on very long.


So happy to have found this thread today. I had been looking, but hadn’t seen anything helpful until today. I am not happy this skin reaction is happening to us. Hopefully, Apple will respond and acknowledge.

Dec 22, 2022 3:58 AM in response to DH94-

My Apple Watch 7 is burning my wrist as well. i don't think it's an allergic reaction to the strap or materials but is caused by the watch running too hot. When i first used it (May 2022), setting up the apps etc caused it to run quite hot. Once it settled down the irritation passed. This week (Dec2022) i have activated the sleep tracking app which has resulted in increased battery usuage and i assume added heat. As a result i now have burns and blisters on the point of contact with the sensor


Mar 15, 2024 3:34 AM in response to Sagarmatha77

I agree. My recommendation for people with such delicate skin is


Firstly wear it in the other wrist for a while to allow healing


Wash your wrists night and morning.


Moisturise at night 


Use a damp facecloth to wash your watch back and strap every night.


Do not wear it at night.


If it persists, stop wearing it and see a doctor, and if you suspect nickel sensitivity or cement burns for builders and DIY consider either a barrier cream or the plastic backed SE watch 


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Apple Watch Sensor burns

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