one of the iconic phones from Samsung, the Galaxy S7 was releasedon March 11, 2016. with a 5.1 inch Super Amoled Display and Corning Gorilla Glass 4
It came originally with android 6.0 (Marshmallow) and upgradable to version 8.0. For full details you can check GSM Arena Page here: https://www.gsmarena.com/samsung_galaxy_s7-7821.php
How to setup APN Settings on Galaxy S7:
to setup the APN Settings on your Galaxy S7, please follow these steps:
1. From you home menu, go to Settings icon.
2. Go to Connections
3. Go to Mobile Networks
4. Go to Access Provider Network (APN)
5. Tab menu or three little dots and select Add New, input the information that corresponds to your mobile operator. If you dont have it, please check this list of APN for US Operators
Once you finished typing in the APN info, Save it, Exit and reboot the phone. You should now be able to use the internet on the Galaxy S7