I expected it to be small, but perhaps not quite this small. Obviously Samsung has to be getting a benefit from the design to have bothered to include it, but it’s not clear how much advantage it gives. iFixit notes that the heat pipe channels heat into the device midframe, which should allow it to radiate out to the sides of the device — which, yes, is where you tend to hold the phone. Again, we’ll need use testing to confirm if this presents a problem, but given the limited heat transfer capabilities of a heat pipe that tiny, I’m guessing it doesn’t.
Overall, the Samsung Galaxy S7 scores a rather dismal 3/10. iFixit gives it points for modular components in some areas, but the use of front and back glass and the extensive glue hurt the final score. As for the display, iFixit notes:
“The display needs to be removed (and likely destroyed) if you want to replace the USB port… Replacing the glass without destroying the display is probably impossible.”
Granted, not many people buy phones strictly on how repairable they are, but if you’re one of the people who take such ratings into account, you may want to look elsewhere for your next smartphone.