Apple Watch Ultra (49 mm, 1st generation) / Samsung Galaxy Watch5 Pro (45 mm)

Apple Watch Ultra (49 mm, 1st generation): Apple Watch Ultra, 49 mm natural titanium case, GPS + Cellular. The Apple Watch Ultra 2 and Ultra 3 are separate models.

Samsung Galaxy Watch5 Pro (45 mm): The Galaxy Watch5 Pro comes in one size (45 mm): SM-R920 (Bluetooth) and SM-R925 (LTE), in Black Titanium and Gray Titanium. The 40/44 mm Galaxy Watch5 is a separate model with a different battery, case material and display size.

Specification	Apple Watch Ultra (49 mm, 1st generation)	Samsung Galaxy Watch5 Pro (45 mm)
Release year	2022	2022
Display	LTPO2 OLED always-on Retina; 410 × 502 pixels; 1185 mm² display area; up to 2000 nits LTPO lets the refresh rate drop very low, so the screen can stay on without draining the battery. 2000 nits was twice as bright as any earlier Apple Watch display. Apple	1.4-inch (34.6 mm) 450 × 450 Super AMOLED; full-colour Always On Display The bezel is raised above the display, which Samsung designs to protect the glass from knocks. There is no rotating bezel; menus are navigated with touch gestures and the buttons. Samsung
Case and glass	49 mm natural titanium case; flat sapphire front crystal; ceramic and sapphire back The flat front crystal is protected by a raised titanium edge. Apple	—
Chip	S8 SiP with 64-bit dual-core processor; W3 wireless chip; U1 Ultra Wideband chip; 32 GB storage Availability of Ultra Wideband features varies by country. Apple	—
Location and navigation	Dual-frequency GPS (L1 and L5), GLONASS, Galileo, QZSS, BeiDou; compass; always-on altimeter The L5 signal helps separate signals reflected by tall buildings and trees; Apple called it the most accurate GPS of any Apple Watch at the time. Apple	—
Health sensors	Electrical heart sensor (ECG); third-generation optical heart sensor; blood oxygen sensor Availability of the ECG and blood oxygen apps varies by country. Apple	—
Diving and water	WR100 (ISO 22810); dive-ready to 40 metres (EN 13319); water temperature sensor and depth gauge; IP6X dust Apple points to the third-party Oceanic+ app for recreational scuba diving to 40 metres; the watch itself is not certified as a dive computer. Apple	—
Safety	86-decibel emergency siren; Fall and Crash Detection (high-g accelerometer up to 256 g); Emergency SOS The siren plays two distinct patterns, one signalling distress and one mimicking SOS. Apple	—
Connectivity	LTE and UMTS; Wi-Fi 802.11b/g/n 2.4 and 5 GHz; Bluetooth 5.3 With cellular, the watch can make calls and get messages without the phone nearby; carrier support is required. Apple	Bluetooth 5.2, Wi‑Fi 802.11 a/b/g/n 2.4 + 5 GHz, NFC, GPS/Glonass/Beidou/Galileo; LTE (LTE model only) The LTE model can make calls and use data without the phone nearby; support depends on the carrier. Samsung
Battery	Up to 36 hours; up to 18 hours with LTE; USB-C magnetic fast-charging cable Runtime depends on display, workout and cellular use; using LTE away from the phone drains the battery noticeably faster. Apple	—
Low-power setting	Up to 60 hours Apple announced that this setting would arrive in software after launch, in autumn 2022; it extends runtime by taking some readings less often. Apple	—
Operating temperature	−20 °C to 55 °C on the wrist Apple	—
Weight	61.3 g (without band) Apple	—
Compatibility	iPhone 8 or later with iOS 16 or later The watch can only be set up and used with an iPhone; it does not pair with Android phones. Apple	—
Glass and case	—	Sapphire Crystal; titanium case with D-Buckle Sport Band The D-buckle band folds open; because the watch cannot lie flat, it is charged on its side on the Samsung charger. Samsung
Processor	—	Exynos W920, dual-core 1.18 GHz Samsung
Memory and storage	—	1.5 GB RAM + 16 GB internal storage Samsung
Battery and charging	—	590 mAh (typical); WPC-based wireless faster charging Samsung says real battery life varies with network environment and usage patterns. 590 mAh is about 44% larger than the 410 mAh battery in the 44 mm Galaxy Watch5. Samsung
Operating system	—	Wear OS 3.5 (Powered by Samsung) with One UI Watch 4.5 at launch Activation requires connecting to an Android phone with Google Mobile Services; it cannot be used with an iPhone. Samsung
Sensors	—	Samsung BioActive Sensor (Optical Heart Rate + Electrical Heart Signal + Bioelectrical Impedance Analysis), temperature, accelerometer, barometer, gyro, geomagnetic, light sensor Electrical Heart Signal enables ECG and Bioelectrical Impedance enables body composition estimates; ECG works through the Samsung Health Monitor app only in approved markets. Samsung
Durability	—	5ATM + IP68 / MIL-STD-810H 5ATM covers surface water use such as swimming, not diving or high-pressure water. MIL-STD-810H is the US military standard for environmental test methods. Samsung
Phone compatibility	—	Android 8.0 or higher with more than 1.5 GB of RAM Samsung
Size and weight	—	45.4 × 45.4 × 10.5 mm; 46.5 g Dimensions are measured without the health sensors and weight without the strap. Samsung