ive got the iPhone 7 plus and it gets really hot with moderate usage. Also when using my maps app it is completly off. It will tell me to turn than to go back on the route I was just on or it will say proceed to route and I haven't done anything different. Bluetooth connectivity is also a problem when it's connected to my car. It will skip like it's a cd or something or won't even work and I will have to start my car again to reconnect. Last but not least while using different apps like facebook safari and sending pics in message app will completely just crash and go to the loading things like when your phone dies but it won't restart all the way. Just loads up the passcode page. Never had any of these problems with my iPhone 6s. Updated to iOS 10.1 and still having problems. Not sure if it's the phone or iOS.