Tech Specs Color – 44mm: Green, Silver – 40mm: Green, Cream Dimensions1 & Weight2 – 44mm: 44.4 x 44.4 x 9.7mm, 33.8g – 40mm: 40.4 x 40.4 x 9.7mm, 28.8g Display Sapphire Crystal- 44mm: 1.5-inch (37.3mm) 480×480 Super AMOLED, Full Color Always On Display – 40mm: 1.3-inch (33.3mm) 432×432 Super AMOLED, Full Color Always On Display Processor Exynos W1000 (5 Core, 3nm) Memory & Storage 2GB memory + 32GB storage Battery3 (typical) – 44mm: 425mAh – 40mm: 300mAh Charging4 Fast Charging (WPC-based wireless charging) OS5 Wear OS Powered by Samsung (Wear OS 5) UI One UI 6 Watch Sensors Samsung BioActive Sensor (Optical Bio-signal Sensor + Electrical Heart Signal + Bioelectrical Impedance Analysis), Temperature Sensor, Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor Connectivity LTE6, Bluetooth 5.3, Wi-Fi 2.4+5GHz, NFC, GPS(L1+L5)/Glonass/Beidou/Galileo Durability7 5ATM + IP68 / MIL-STD-810H Compatibility Android 11 or higher and with more than 1.5GB of memory8 1 Measured without health sensors. 2 Measured without band. 3 Battery life is based on results from internal lab tests for typical usage pattern scenarios conducted by Samsung. Actual battery life may vary depending on different usage patterns, device model, network environment and other factors. Typical value tested under third-party laboratory condition. Typical value is the estimated average value considering the deviation in battery capacity among the battery samples tested under IEC 61960 standard. 4 Testing conducted by Samsung using pre-released version of Galaxy Watch7 and Galaxy Watch Ultra (BT & LTE), each paired to a Samsung phone; all devices tested with prerelease software, Galaxy Watch Magnetic Fast Charging USB C Cable (EP-OR900), and Samsung 25W USB C Power Adapter (EP-TA800). Charge time varies with region, settings, usage pattern and environmental factors; actual results may vary. Samsung 25W USB C Power Adapter (EP-TA800) sold separately. 5 Wear OS Powered by Samsung works with phones running Android 11 (excluding Go edition and phones without Google Play Store) or later with more than 1.5GB of memory. Compatible devices may vary by market, carrier or device brand. 6 LTE connectivity only available in LTE models. 7 Galaxy Watch7 and Galaxy Watch Ultra have obtained MIL-STD 810H Certification: It has undergone a test that repeats from -20°C (1Hr) to 50°C (1Hr) for a total 6 hours. 8 Device activation is only available after connecting to a smartphone that supports Google Mobile Services. Compatible devices may vary by market, carrier or device brand. * Specifications may vary by market. * All functionality, features, specifications and other product information provided in this document including, but not limited to, the benefits, design, pricing, components, performance, availability, and capabilities of the product are subject to change without notice.