Here is a bit of HTC One M9 news which could be distressing. Supposedly, the One M9's unibody design heats up to a flesh-burning 131 degrees Fahrenheit during a GFXBench benchmark test. For those across the pond, that is a whopping 55.4 degrees Celsius. To be clear, the source of this intel made note that tap water at 140 degrees Fahrenheit can give you third degree burns. Ouch!
According to the report, the reason the surface of the phone heats up this much is because of the Qualcomm Snapdragon 810 processor. If this report is true it would be further confirmation that Samsung was right about the 810 having over-heating problems.
There's one important point to take from this. According to HTC spokesman Jeff Gordon, the software has not been finalized for the device. He didn't explicit say it, but he hinted that once that software is finalized the heat issues could be resolved. It looks like we will have to play wait and see.
Here's our dedicated HTC One M9 section for further discussion: HTC One M9 Android Forum at DroidForums.net
Source: BGR