Samsung's Galaxy Watch4 features a 1.36" 450x450 Super AMOLED display or a 1.19" 396x396 Super AMOLED on the smaller variant. It uses Samsung's new One UI Watch operating system (based on Wear OS), bioactive sensors (PPG, ECG, BIA),Exynos W920, LTE, 1.5GB of RAM and 16 GB of storage.
There is also a Galaxy Watch 4 variant, with similar specification but a slightly different design - a rotating bezel and stainless steel body (instead of the rubber band and the so-called digital bezel).
The Galaxy Watch 4 will ship by the end of August 2021.
1.36" 450x450 / 1.19" 396x396 Super AMOLED