Chosen Solution

This happens on my 7 and X seperate apple ID’s as one is for business When I put my iPhone against my skin specifically he top right corner it feels warm. I borrowed a thermometer from a friend and t was reading 88-91 when using reddit, safari, and outlook for about 20-30 minutes. I’ve read some people say it’s normal and others not so I was hoping some people could let me know or actually check the temp of there phone after 30 minutes of moderate use? Could it be hand heat even with a case on? Thanks! Room temp varies from 70-75

I’ve never measured the temperature directly but warm to the touch is fine and normal, especially under moderate to heavy use. If the housing gets uncomfortably hot, then there is something wrong.