Samsung Galaxy Watch user claims wearable burned their wrist

Samsung Galaxy Watch Active 2
The Samsung Galaxy Watch Active 2 (Image credit: TechRadar)

You might want to think twice about continuing to wear your old Samsung Galaxy smartwatch overnight following reports that a user's wrist was burned by their health tracker while they were sleeping.

The best fitness trackers are not just useful tools for keeping an eye on your fitness goals; many have sleep monitoring features, so you’re incentivized to rarely take them off if you want to monitor that aspect of your health too.

But if you’re using an older Samsung smartwatch (like the Samsung Galaxy Watch Active 2) you may want to think about getting a different wearable, as Reddit user TheMattsterOfSelf claims their watch gave them a third-degree burn in their sleep.

The post in the r/WellThatSucks community shows off their injury, alongside the back of the watch that apparently caused the burn. In the comments, TheMattsterOfSelf explains that the watch is an “Active 2 44mm Bluetooth model” that they’ve been using for some time to help manage their insomnia.

We’ve reached out to Samsung about the report but at the time of writing we haven’t heard back. If we do we’ll update this piece with their statement and any advice they can offer Galaxy watch customers.

A photo of the black 40mm Samsung Galaxy Watch 5

The Samsung Galaxy Watch 5 is a great sleep tracker so let's hope it doesn't have the same issues (Image credit: Basil Kronfli / TechRadar)

This isn’t the first time that Samsung’s smartwatches have been blamed for burning wrists instead of calories – an investigation for a potential class-action lawsuit is looking at other reports of Galaxy Watches causing burns and injuries. 

But it’s also not a problem that's unique to Samsung devices. Fitbit had to recall millions of its Fitbit Ionic watches earlier this year after numerous reports of users being burned by them.

Apparently, the Fitbit watches were overheating because of issues with their lithium-ion batteries. As our then Fitness editor explained in the article linked above, lithium batteries are used in smartwatches because they’re compact and can be charged quickly – but they do come with a risk.

If one lithium cell gets damaged, or is short-circuited for any reason, it’s possible that it might overheat, and if it does it could cause a chain reaction that causes other cells to get damaged and heat up until the device gets hot enough to burn the wearer.

It’s not clear if TheMattsterOfSelf’s Samsung issue is of the same nature, but given that the watch is one of the company’s older models it’s plausible that general use could have caused the batteries to degrade over time to the point where a similar instance of cells overheating could occur.

We’ll have to wait and see how Samsung responds to this latest claim, but if there is an issue with its watches then you might want to rethink which device you use to monitor your sleep – you'll find plenty of options in our picks for the best smartwatch.

Hamish Hector
Senior Staff Writer, News

Hamish is a Senior Staff Writer for TechRadar and you’ll see his name appearing on articles across nearly every topic on the site from smart home deals to speaker reviews to graphics card news and everything in between. He uses his broad range of knowledge to help explain the latest gadgets and if they’re a must-buy or a fad fueled by hype. Though his specialty is writing about everything going on in the world of virtual reality and augmented reality.

Read more
Samsung Galaxy S25, OnepLus watch 3
I tested the OnePlus Watch 3's sleep tracking powers against our top smart ring – and it didn't measure up
Fitbit Versa 3
Fitbit issues battery overheating warning over two of its most popular watches – and it might compensate you if you're affected
Fitbit Versa 3
'It lasts less than a day' – Fitbit users furious over update that crushes battery life
OnePlus Watch 3
OnePlus seeks FDA approval for Sleep Apnea Detection on its watch and takes on Apple in the process
Samsung Galaxy ring on a blue background
The best sleep tracker 2025: All the best tech to improve your sleep
Apple Watch Series 10 keyboard.
Wearing an Apple Watch on your ankle is a seriously bad idea: Here are 8 reasons why
Latest in Smartwatches
Oppo Watch Mini X2 teaser
Oppo Watch X2 Mini teaser could be our first glimpse of the smaller OnePlus Watch 3
Google Pixel Watch 3
Google Pixel Watch 3's Loss of Pulse Detection could save your life – here's how the company created it
Apple Watch foldable display patent
Forget the folding iPhone – Apple has patented a foldable Apple Watch with two screens
Apple Watch Ultra 2
7 hidden features on your Apple Watch you should start using right now
Core Time 2 + iPhone 15 blue
'They're stopping our watches from being awesome.' Pebble founder takes the fight to the Apple over its walled ecosystem
Polar Vantage M3 smartwatch worn on wrist
Polar's entire sports watch lineup just got a major upgrade, and it'll make your training more effective than ever
Latest in News
L-mount alliance
Sirui joins L-Mount Alliance to deliver its superb budget lenses for Leica, DJI, Sigma and Panasonic cameras
Security padlock and circuit board to protect data
Trust in digital services around the world sees a massive drop as security worries continue
A Lego Pikachu tail next to a Pebble OS watch and a screenshot of Assassin's Creed Shadow
ICYMI: the week's 7 biggest tech stories from LG's excellent new OLED TV to our Assassin's Creed Shadow review
Samuel and Romy standing very close together in A24's Babygirl movie
Everything new on Max in April 2025, including A24's Babygirl and The Last of Us season 2
An AMD Radeon RX 9070 XT made by Sapphire on a table with its retail packaging
AMD’s secret weapon against Nvidia seems to be stock – way more RX 9070 GPUs are rumored to be hitting shelves than RTX 5000 models
Hacker silhouette working on a laptop with North Korean flag on the background
North Korea unveils new military unit targeting AI attacks