Apple Watch Ultra 4: A3579; 49 mm natural titanium; translucent gray Ocean Band
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.
| Specification | Apple Watch Ultra 4 | Samsung Galaxy Watch5 Pro 45 mm |
|---|---|---|
| Release year | 2026 | 2022 |
| Announcement / availability | 9 / 18 September 2026 Apple | — |
| Case | Grade 5 titanium; sapphire front crystal Apple | — |
| Size | 49 × 44 × 12 mm Apple | — |
| Weight | Natural titanium case 63 g Apple | — |
| Display | LTPO3 OLED; 422 × 514 Apple | 1.4-inch (34.6 mm) 450 × 450 Super AMOLED; full-colour Always On Display; sapphire crystal Samsung |
| Brightness | 1 nit minimum; 3000 nits peak Apple | — |
| Chip | S11; dual-core 64-bit Apple | — |
| Storage | 64 GB Apple | — |
| Health sensors | Electrical/optical heart; blood oxygen; temperature Apple | — |
| Outdoor sensors | Depth, water temperature, compass, altimeter Apple | — |
| Positioning | Precision dual-frequency GNSS Apple | — |
| Wireless | Wi-Fi 4, 2.4/5 GHz; Bluetooth 5.3; UWB Apple | — |
| Cellular | A3579: 5G RedCap and LTE Apple | — |
| Manufacturer battery test | Up to 50 hours normal use; 84 in Low Power Mode Apple | — |
| Charging | About 45 minutes to 80% Apple | — |
| Water / dust | 100 m rating; IP6X Apple | — |
| Diving limit | Recreational diving to 40 m Apple | — |
| Phone compatibility | iPhone 11 / SE 2 or later; iOS 27+ Apple | — |
| Case and colour | — | Titanium case with D-Buckle Sport Band; Black Titanium or Gray Titanium Samsung |
| Processor and memory | — | Exynos W920 dual-core 1.18 GHz; 1.5 GB RAM, 16 GB storage Samsung |
| Battery and charging | — | 590 mAh (typical); WPC-based fast wireless charging 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 Samsung |
| Sensors | — | Samsung BioActive (optical heart rate, electrical heart signal, bioelectrical impedance); temperature sensor; accelerometer, barometer, gyroscope, magnetometer, light Samsung |
| Connectivity | — | LTE (LTE model); Bluetooth 5.2; Wi-Fi 2.4 + 5 GHz; NFC; GPS, GLONASS, BeiDou, Galileo Samsung |
| Navigation | — | GPX route import (Route Workout), turn-by-turn directions and Track Back Samsung |
| Durability | — | 5ATM + IP68; MIL-STD-810H Samsung |
| Size and weight | — | 45.4 × 45.4 × 10.5 mm; 46.5 g (without band) Samsung |