Samsung Galaxy Watch 3

• Name — Samsung Galaxy Watch 3 • Brand — Samsung • Manufacturer — Samsung Electronics • Family — Samsung Galaxy • Series — Galaxy Watch • Model Number — SM-R855F, SM-R845F (Global, LTE model), SM-R855U, SM-R845U (USA, LTE model), SM-R850, SM-840 (Wi-Fi only) • Predecessor — Samsung Galaxy Watch • Successor — Samsung Galaxy Watch 4 • Related — Samsung Galaxy Watch Active 2 • Type — Smartwatch • Memory — 1 GB RAM • Storage — 8 GB • Battery — Non-removable 340 mAh Qi Wireless charging • Os — Tizen OS 5.5 Tizen OS 5.5.0.1 • External Display — Always On Display • Display — 1.4 in Super AMOLED capacitive display, 360×360 pixels, 16 M colours, ~257 ppi density, 6.3cm2, 1:1 aspect ratio, glass front (Gorilla Glass DX), touch sensitive bezel • Connectivity — GSM/HSPA/LTE, 2G/GSM/850/900/1800/2100, 3G/HSDPA/850/900/2100, 4G/1/3/5/7/8/20, Speed, HSPA 42.2/5.76 Mbps, LTE, Wi-Fi 802.11/b/g/n, Bluetooth 5.0, A2DP, LE, A-GPS, GLONASS, GALILEO, BDS, 3IGL, eSIM, MIL-STD-810G compliant, ECG certified • Input — *Heart rate monitor • Accelerometer • Gyroscope • Barometer • Natural language commands & dictation • Networks — 2G, 3G, 4G

The Galaxy Watch 3 comes with a 1.4 (360×360) inch circular Super AMOLED display with a pixel density of 257 PPI (360 pixels/1.4-inches= 257.14 Pixels/Inch), powered by a non-removable 340 mAh battery and recharged using Qi inductive charging. The smartwatch has 1 GB of RAM and 8 GB of internal storage. The Galaxy Watch 3 also features a fully rotatable physical bezel with the display glass made from Corning Gorilla Glass DX. The device is compatible with a 20 or 22 mm straps, depending on model. The Galaxy Watch 3 comes in Bronze, Black, and Silver colour options. • Model — Galaxy Watch3 — Size — 41 mm — 45 mm • Colors — Mystic Bronze, Mystic Silver — Mystic Black, Mystic Silver (premium titanium model available in Mystic Black only) • Display — 1.2-inch (30 mm), full-color, always-on Circular Super AMOLED — 1.4-inch (34 mm), full-color, always-on Circular Super AMOLED • Resolution — 360×360 pixels • Model No. — SM-R850 (Wi-Fi/Bluetooth only), SM-R855U (Unlocked USA LTE model), SM-R855F (Global LTE), SM-R855N (Korea LTE only), SM-R8450 (China LTE, 45 mm only) — SM-R840 (US Wi-Fi/Bluetooth only), SM-R845U (Unlocked US LTE), SM-R845F (Global LTE), SM-R845N (Korea LTE only) • SIM — eSim (LTE models only) • Chassis/Band Materials — Stainless steel 316L frame with premium leather strap — Stainless steel 316L frame with premium leather strap (accepts all 22 mm watch straps/bands); Titanium frame model with metal strap (accepts all 22 mm watch straps/bands) • Glass — Corning Gorilla Glass DX • Processor/GPU — Exynos 9110 (10nm) dual-core 1.15 GHz ARM Cortex-A53; GPU: Mali-T720 • Memory (RAM) — 1 GB • Operating System — Tizen (OS 5.5) • Dimensions — 41 × 42.5 × 11.3 mm (measured without strap) — 45 × 46.2 × 11.1 mm (measured without strap) • Weight (without strap) — 48.2 g — 53.8 g (stainless steel); 43 g (titanium) • Strap/Band Size — 20 mm (accepts most universal 20 mm watch straps/bands) — 22 mm (accepts most universal 22 mm watch straps/bands) • Durability/ Water Resistance — MIL-STD-810G, Water Resistance to 5 ATM (50m) + IP68 rated • Storage — 1 GB RAM • 8 GB Internal Storage (eMMC) • Connectivity — All models: Wi-Fi 802.11/b/g/n, Bluetooth 5.0, A2DP, LE, A-GPS, GLONASS, GALILEO, BDS • US LTE models (SM-R845U, SM-R855U), via eSIM: LTE bands 2/4/5/12/13/25/26/66/71; UTMS bands 2/4/5 US carrier support: Verizon, T-Mobile/Sprint, AT&T • International LTE models (SM-R845F, SM-R855F), via eSIM: LTE bands 1/3/5/7/8/20/28; UTMS bands 1/5/8 GSM/HSPA/LTE, 2G/GSM/850/900/1800/2100, 3G/HSDPA/850/900/2100 Korea-only LTE models (SM-R845N, SM-R855N), via eSIM: LTE bands 1/3/5/7/8; UTMS bands 1/5/8 • China-only, 45 mm LTE only (SM-R8450), via eSIM: LTE bands 1/3/5/8/38/39/40/41); UTMS bands 1/8 • Sensors — Accelerometer, Barometer, Gyro Sensor, Electrical Heart Sensor (ECG), Optical Heart Rate Sensor(HRM), Light Sensor • Battery — 247 mAh — 340 mAh

The smartwatch was released with Tizen 5.5 that features Samsung's unique software overlay. As of September 2025, Tizen is no longer supported on smartwatches per company policy. The watch and recovery will still function, but no new apps can be downloaded.

The Galaxy Watch 3 has a retail price of US$399 for the 41 mm and US$479 for the 45 mm option.