Samsung Galaxy Watch Ultra (47 mm, 2024) / Samsung Galaxy Watch5 Pro 45 mm

Samsung Galaxy Watch Ultra (47 mm, 2024): Galaxy Watch Ultra 47 mm (SM-L705, LTE); Titanium Gray, Titanium White and Titanium Silver at launch. The Galaxy Watch Ultra (2025), sold with a Titanium Blue option, is a later release of the same design whose specifications are not applied to this record; the Galaxy Watch Ultra2 and Galaxy Watch7 are separate models.

Samsung Galaxy Watch5 Pro 45 mm: The Galaxy Watch5 Pro comes only in 45 mm, in Bluetooth (SM-R920) and LTE (SM-R925) versions. The Best Buy Canada reviews belong to the LTE Black model. The Galaxy Watch5 (40/44 mm aluminium) and the Golf Edition are different products.

SpecificationSamsung Galaxy Watch Ultra (47 mm, 2024)Samsung Galaxy Watch5 Pro 45 mm
Release year20242022
Display1.5-inch (37.3 mm) 480 × 480 Super AMOLED; full-colour Always On Display; Sapphire Crystal

Samsung quotes 3,000 nits peak brightness for readability in sunlight. Night Mode faces switch to red tones in the dark.

Samsung		1.4-inch (34.6 mm) 450 × 450 Super AMOLED; full-colour Always On Display; sapphire crystal

Sapphire crystal resists scratches better than mineral and aluminosilicate glass; the raised bezel around the screen protects the glass from knocks.

Samsung
Case47.1 × 47.4 × 12.1 mm; 60.5 g; Titanium Grade 4 frame

According to Samsung, Grade 4 titanium is used only on the front and back cover areas of the metal frame; the rest of the frame is a mix of plastic and Grade 2 titanium.

Samsung		—
ProcessorExynos W1000 (5 core, 3 nm) Samsung—
Memory and storage2 GB memory + 32 GB storage

This figure is for the 2024 launch model; the Galaxy Watch Ultra (2025) version may differ.

Samsung		—
Battery and charging590 mAh (typical); up to 100 hours in Power Saving and 48 hours in Exercise Power Saving; WPC-based fast wireless charging

In Exercise Power Saving some features, such as network and Bluetooth connections, may be unavailable. Durations come from Samsung’s internal lab tests.

Samsung		590 mAh (typical); WPC-based fast wireless charging

Samsung says the battery is 60% larger than the Galaxy Watch4’s.

Samsung
Operating systemWear OS 5 (Powered by Samsung) with One UI 6 Watch at launch; One UI 8 Watch update released in July 2025

The One UI 8 Watch update brought Watch8 features such as Running Coach, Vascular Load and Antioxidant Index.

Samsung		—
SensorsSamsung BioActive Sensor (Optical Bio-signal sensor + Electrical Heart Signal + Bioelectrical Impedance Analysis), temperature, accelerometer, barometer, gyro, geomagnetic, light sensor

Health features are for general wellness, not diagnosis; some measurements depend on the market and the paired phone.

Samsung		Samsung BioActive (optical heart rate, electrical heart signal, bioelectrical impedance); temperature sensor; accelerometer, barometer, gyroscope, magnetometer, light

Bioelectrical impedance analysis estimates values such as body fat and skeletal muscle; results are not for medical diagnosis.

Samsung
ConnectivityLTE, Bluetooth 5.3, Wi‑Fi 2.4+5 GHz, NFC, GPS (L1+L5) / Glonass / Beidou / Galileo

L1+L5 dual-frequency GPS uses two satellite signals to improve location accuracy among tall buildings and trees.

Samsung		LTE (LTE model); Bluetooth 5.2; Wi-Fi 2.4 + 5 GHz; NFC; GPS, GLONASS, BeiDou, Galileo Samsung
Durability10ATM + IP68, MIL-STD-810H; ocean swimming; operation from −20 to 55 °C; altitude from 500 m below sea level to 9,000 m

10ATM means 10 minutes at 100 metres under ISO 22810; Samsung says the watch is not suitable for high-pressure water or scuba diving. IP68 covers 1.5 metres of fresh water for 30 minutes.

Samsung		5ATM + IP68; MIL-STD-810H

5ATM covers surface water activities such as swimming, not diving or high-pressure water. MIL-STD-810H is a set of military test methods, not a guarantee of impact resistance.

Samsung
Buttons and safetyTwo buttons + orange Quick Button; Emergency Siren

The Quick Button can be mapped to start and control workouts; holding it sounds the emergency siren.

Samsung		—
Phone compatibilityAndroid 11 or higher with more than 1.5 GB of memory Samsung—
Case and colour—Titanium case with D-Buckle Sport Band; Black Titanium or Gray Titanium

The D-Buckle band uses a folding clasp so the strap sits at the same point every time, in place of a standard pin buckle.

Samsung
Processor and memory—Exynos W920 dual-core 1.18 GHz; 1.5 GB RAM, 16 GB storage Samsung
Software—Launched with Wear OS 3.5 and One UI Watch 4.5; needs an Android 8.0+ phone with more than 1.5 GB of RAM

Wear OS 3 and later do not work with iPhone. Blood pressure and ECG work only in markets supported by Samsung Health Monitor and with Galaxy phones.

Samsung
Navigation—GPX route import (Route Workout), turn-by-turn directions and Track Back

Track Back follows the recorded path in reverse to help you return to the start.

Samsung
Size and weight—45.4 × 45.4 × 10.5 mm; 46.5 g (without band) Samsung