As you can see by the title, the Samsung Galaxy Gear and Gear 2 got an upgrade to Tizen OS, also known as Tizen Mod 3. For those not familiar with Tizen OS, it is a custom Tizen ROM that is a custom ROM for Galaxy’s prized smartwatches.
The update is based on latest NF1 and NE5 firmwares for Samsung Gear and Gear 2. This includes a lot of cool features like support for the custom icon theme, custom fonts, ringtones, as well as alarms. It also includes features like Android L font, governor modification support, CPU frequency monitor, as well as root access.
Here is another added bonus: if the Tizen Mod 3 is installed, then its users don’t need to have a mobile device paired in order to install a new application on these smartwatches. All that is required is to put an apk file on the phone and the user must manually install it.
In order to put the ROM on the Galaxy Gear or Gear 2, you need the Odin software. You can find some directions on how to get it here, and if you are fortunate enough to have the Galaxy Gear or Gear 2, you should probably check it out.