I picked up my watch from o2, took out the data deal set it all up, when I leave my phone at home and a call comes through I answer talk for a few seconds then get a overheating message it shuts my call of and puts flight mode on, does exactly the same if I try to make a outgoing call, I'm at a tot

Yes, watch 5 overheats. Yes, it has been a disappointment for me too, along with horrible battery life. It is not a bug though, it is just a matter of physics - amount of power required to communicate over LTE (both for transmitter and for processing) and amount of heat such small device can dissipate while also staying within very low temperature your skin can handle.
I had the lte version of the active 2. No issues for me before, but now that I'm researching I'm seeing others reporting overheating on older versions too. I did update the firmware yday and switched back to a stock watchface instead of facer. Battery life seems to have improved a lot, so maybe todays run will go better.
Honestly, not being able to make payments using Gpay on the watch (see another post on this matter), together with the overheating issue when using the watch in standalone mode, without the phone, these make the Watch 4 LTE edition watch to look more like a smartfit bracelet, not as a smartwatch as has been currently labeled. Press and hold the Power button for 10 seconds. Check if the watch turns on. Press and hold both the buttons on your watch until you see the Samsung logo. Press and hold the Power button or both I have a Galaxy watch 4 classic 46mm LTE and I was going on a run today, without my phone. This is the primary reason I bought the watch is for fitness tracking. About 6 minutes into the run it overheated. (, Galaxy Watch 1). Is this common? My set up is Bluetooth connection on , wifi off, and LTE voice permanently on with LTE data off. I'm in a week mobile signal area. I was sat reading , about 18c air temperature at night. Is the LTE hardware working overtime because the LTE signal keeps disappearing, and is overheating?
After I lost my original Galaxy Watch LTE recently (sudden death) I decided to move the eSIM card to my Galaxy Watch 4, which is also LTE enabled and I remeber when I tested it first time in about June, it overheated in like 3 minutes. Today I decided to check it again, on OneUI 5, and it looks like this time it worked OK.
The Galaxy Watch 5 is on sale at Amazon in multiple sizes and color options, and some models have LTE support. Samsung has discounted the Galaxy Watch 5 in several colors, sizes, and connectivity options for a limited time. The prices range from the regular 40mm model for $219 (22% off) to the 44mm LTE version for $279 (22% off). ybqJIp.
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    • galaxy watch 5 lte overheating