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/

204 replies

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 


Oct 7, 2022 1:38 PM in response to DH94-

I think it is an allergic reaction to the material in the back of the watch. Before smartwatches I had same symptoms with watches with stainless steel backs. I first thought it was some poison ivy or similar that got under the watch. My Dr said it was very likely an allergic reaction to the nickel in SS back. I let it heal and put tape on the back of the watches and that eliminated the problem.


When the Apple watch came out I was concerned the the SS in the back would result in the same allergic reaction. One can't take the back of the watch since that would cover the sensors.



Apple uses pure materials to help eliminate the possibility of an allergic reaction but for some users they have a reaction. I do not have such reaction. See:

ARE YOU ALLERGIC TO YOUR APPLE WATCH? - Nereides

A Rare Nickel Allergy Proves Apple Cares About Customer Satisfaction

Yes, Your Apple Watch Is Giving You A Rash


Aug 25, 2023 6:40 AM in response to T4mblot

Thank you for participating in the Apple Support Communities. Nobody here is qualified to comment despite some amateur medics attempting to do so.

I want to make sure you reach the right team for help with your Watch.  I recommend that you contact Apple Support directly. Depending on your region, you may be able to reach them here Click here >  Contact - Official Apple Support  or phone numbers Click here > Contact Apple for support and service - Apple Support 


Safety information including skin sensitivity recommendations can be found in


Important safety information for Apple Watch – Apple Support (UK) and  Wearing your Apple Watch – Apple Support (UK)


(Shamelessly copied from LD150's previous response)

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Apple Watch Sensor burns

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