With the Samsung Watch 4 CLASSIC 42m, you can stay in touch with the outside world. It is lightweight, sleek, and has better call functionality, a longer battery life, and simple device connectivity. It keeps you organized while you're on the go thanks to its user-friendly interface and compatibility with iPhones and Android devices. 16GB of ROM 1.5GB of RAM Display size: 1.4 in. 42 M in size Li-Ion 361 mAh battery