The Samsung Watch 4 40m allows you to stay connected in style. This watch, which has all the features of the most recent Watch 4 series, keeps you informed about music, tracking, notifications, and much more. It was made with comfort in mind and has a 40m water resistance rating. Keep in touch without compromising your sense of style. 16GB of ROM 1.5GB of RAM Display size: 1.4 in. 40 M in size Li-Ion 361 mAh battery