The Gear S3 is a round Tizen-based smartwatch that features a round 1.3" 360x360 (278 PPI) full-color Always-On Super AMOLED display. Other features include IP68 water resistant, LTE connectivity, mobile payments and built-in speaker and GPS.

Samsung Gear S3 photo

The Gear S3 comes in two editions, Gear S3 frontier and classic. The Gear S3 started shipping in November 2016.

OLED type: 

1.3" 360x360 Super AMOLED

Atomic Force Microscopy for next-gen OLED processesAtomic Force Microscopy for next-gen OLED processes