The Watch Series 2 is Apple's 2nd-Generation smartwatch. Improving on the first generation, the Series 2 has a built-in GPS, is now waterproof and it sports better hardware. The display is again an OLED: either a 272x340 38mm one or a 312x390 42mm - similar to the original Watch, but twice as bright (1,000 nits).

Apple Watch Series 2 photo

The Watch Series 2 is now shipping, starting at $369


OLED type: 

272x340 (38mm) or 312x390 (42mm) flexible AMOLED

Merck - Advancing Display, Advancing LifeMerck - Advancing Display, Advancing Life