I decided to purchase the Samsung Gear S2 and was shocked that Samsung crippled its own customers! In order to use this watch you will need to install the Samsung Gear App. Unfortunately, you will receive a notice stating - "The operating system on your phone has been modified in an unauthorized way, and is not compatible with the Samsung Gear app. Check your operating system and try again." That was something I never expected! I did a little research which helped me setup the software and the watch works 100%.
You will need to edit the build.prop in /system and change Samsung to p3113.
The reason for changing this line to p3113 allows both the watch to work flawlessly and the Peel Remote App that uses the IR Blaster to work correctly. Many forums suggested htc and that causes the Peel Remote to fail. Sadly, this will need to be tweaked every time you install a new update.