It can get warm, but it should not normally be hot. I hope you're not using the device while it's charging, you should not do that. Otherwise, please contact us. Thanks. https://support.oculus.com
I didn’t and don’t use the Go while charging! It also was not in a confined area so it got plenty of air. There was a message in the Go saying that it was overheating and it said “tap here” to get rid of the message but there was no ability to tap at all or even use the hand held controller! So I let it cool down. Since it became so hot, I thought it would start a fire and since I had the Go for only about 2 weeks, I had Amazon send me a replacement. I hope this one isn’t defective.