Phone Cooler, Phone Cooling Fan Case, Mobile Phone Water Cooled Radiator for Android/iPhone - Mute, Protect The Battery

I took a chance and bought this to try to keep my V20 cool and it does work. The biggest thing is that this device has to be tight against the back of the phone for max cooling effectiveness. I work in logistics and lemme tel ya I have been beating this thing up pretty good dropping it in my delivery truck from about 3 ft up and hitting it against big heavy boxes thay I try to squeeze out from the back cargo area. Good product. I think that it would do to have a slightly stronger spring and a couple of tiny teeth on it for a tighter connection. Oh and if you want really good cooling then you might wanna remove the case of your phone.

Didn’t work and got super hot instead of cooling my phone. threw it away after plugging it in to test it and darn near cooking my phone

I don't think I read the description clearly. This needs an external power source (as in an actual separate plug). I guess this could be my fault, but that makes it not so useful.

This doesn't do anything. Yes it does have a peltier chip inside I believe as condensation forms, but this doesn't have enough power to get my phone below room temp after my phone being all the way off for 5 minutes. Slightly dissapointed. I think if they added a better power supply it would work better because the chip is so underpowered. I will being keeping it but note if your buying this and icecube is better. I used my own thermal pad and the bearback method is slightly worse. I don't recommend this as it does absolutely nother besides make your phone feel a little cooler. Maybe it helps with throttling but after some more benchmarks we will see.

Out of the way, its two biggest flaws are 1) it's bulky, and 2) it relies on a USB cord to work.That said, it actually works for me. I admit my "test" was not scientific, and it by no means keeps the phone at a really low temperature, but it does make a difference. Within seconds if turning it on, the pad on the back becomes noticeably cooler and it will leave a cool spot on the back of the phone after removing.

This definitely works. I play pubg mobile on extreme framerate and it makes the phone really hot. Before I had the cooler, I could not charge my phone while playing, because the phone would get too hot and the graphics would get choppy and I would have to turn off my phone and run it under cold water or toss it in the freezer for a minute to cool it down. After using this cooler, my phone remains warm, but never too hot anymore. I use an iPhone XS max and take off my case when I play on it to directly apply the cooler to the phone.

It was pretty good for the price, but it died soon after we got it.

It’s as cool as me just blowing on the damn thing. Not as cold as shown on other reviews.