Question: what is apple watch series 1 gen 2?
Answer: The first-gen Apple Watch uses a stainless steel case with a sapphire crystal display. The Series 2 and Series 1 watches almost have the same OLED Retina displays. The Series 2 38mm and 42mm models have a resolution of 272-by-340 and 312-by-390 pixels, respectively, just like the original, or about 326 pixels per inch.