For the serious buyer, may God bless you, let's not waste each other's time ‼ For sale, the smart watch Samsung Galaxy Watch 4 (The watch is the basic version, not the regular one. The watch is much more accurate than the Apple Watch in measuring heart rate, sleep, and sensing movement, walking, and sports. Operating System: Wear OS Google apps Supports the purchase feature and Google Wallet Size: 40 mm Health: Contains a BioActive sensor to measure (heart rate, ECG, and body composition analysis "fat and muscle percentage"). Screen: Super AMOLED type, which is one of the best screens in its price category to date Advanced health sensors: Measuring heart rate, blood pressure, and ECG. Body Composition Analysis (BIA): Measuring body fat, muscle, and water percentage (a Samsung exclusive feature). Accurate tracking of sleep, blood oxygen level, walking, sports, and other known Samsung watch features 200 SAR is the minimum price