My 3rd Samsung watch 4 thats 4g. over heating. I have now found issue after hours of testing ect. Its when lte is activated on and signal is poor or non exidtent. I have had WiFi on Bluetooth ect every combination you can think. And yes with only lte it over heats while looking or struggling with the signal . In to cool mode it goes. If u put another function on Bluetooth ect it gets hotter quicker . So looks like software fault . Unless 3 faulty watches. Oh let me say lastly good !!@4g signal WiFi and Bluetooth on no issues say a lot . Please help samsung
Just going to say if you search "overheating" in the Galaxy watch subreddit you'll see that this is a legacy issue dating back through various iterations of the Samsung watch. I am returning mine in favor of a Garmin. No excuse Samsung again this is a legacy issue. This was never an issue on Apple watch for me. It's your hardware/software and something billed as LTE should have been thoroughly tested before it hit the market.
Also check to see if the software is up to date. If the watch is still overheating and not charging, then it would be recommended to have the watch evaluated by a certified technician. You could also contact your place of purchase to see what options they may have available. You can use the following link below to request service. https://www.samsung.com/us/support/service/
or by contacting customer service at 1-800-726-7864.
