Samsung R820 Galaxy Watch Active 2 Stainless Steel (44mm) gold with 1.4 inches size with Resolution 360 x 360 pixels with internal memory 4GB with 1.5GB RAM with a Non-removable Li-Ion 340 mAh battery
Samsung Galaxy Watch 5 vs Galaxy Watch 5 Pro: Which one should you get? | ZDNET
Amazon.com: ASDAWN for 42mm Samsung Galaxy Watch Battery EB-BR810ABU Samsung Galaxy Gear S4 Battery Replacement, for SM-R810 SM-R815 with Repair Tool Set + Installation Instruction : Cell Phones & Accessories