Apple Watch Ultra 2 / Samsung Galaxy Watch5 (40 mm, Bluetooth)

Apple Watch Ultra 2: Apple Watch Ultra 2, 49 mm titanium case, GPS + Cellular; natural (2023) and black titanium added in 2024. Band options (Alpine Loop, Trail Loop, Ocean Band, Titanium Milanese Loop) vary by size. The Apple Watch Ultra (2022) and Ultra 3 (2025) are separate models.

Samsung Galaxy Watch5 (40 mm, Bluetooth): The 40 mm aluminium Bluetooth version of the Galaxy Watch5, in Graphite, Pink Gold and Silver. The 44 mm version has a larger screen and battery; the titanium Galaxy Watch5 Pro is a separate model.

Specification	Apple Watch Ultra 2	Samsung Galaxy Watch5 (40 mm, Bluetooth)
Release year	2023	2022
Case	49 mm, Grade 5 titanium; natural or black; 49 × 44 × 12 mm Weight is 61.4 g in natural and 61.8 g in black. Fits 130–210 mm wrists. Apple	—
Display	Always-On Retina LTPO2 OLED; 410 × 502 pixels, 326 ppi; 1,185 mm² display area Brightness goes up to 3,000 nits and down to 1 nit in the dark. LTPO2 lowers the refresh rate to reduce battery use in always-on mode. Apple	1.2-inch (30.4 mm) Super AMOLED, 396 × 396 pixels; full-colour Always On Display; sapphire crystal Sapphire crystal is a glass material that strongly resists scratching. The 44 mm version has a 1.4-inch, 450 × 450 screen. Samsung
Glass	Flat sapphire crystal front Apple	—
Chip and storage	S9 SiP (64-bit dual-core processor, 4-core Neural Engine); 64 GB The S9 SiP can process Siri requests on the device and supports the double tap gesture (tapping thumb and index finger together twice). Apple	—
Location	L1 + L5 dual-frequency GPS; GLONASS, Galileo, QZSS, BeiDou The L5 band helps reduce position errors where signals bounce, such as among tall buildings and dense trees. Apple	—
Sensors	Electrical heart sensor; third-generation optical heart sensor; temperature sensor; depth gauge; water temperature sensor; compass; always-on altimeter The electrical sensor runs the ECG app (age 22 and over). The temperature sensor is not for medical use; it supports retrospective ovulation estimates in cycle tracking. Apple	Samsung BioActive Sensor (optical heart rate, electrical heart signal, bioelectrical impedance analysis); temperature sensor; accelerometer, barometer, gyro, geomagnetic and light sensors The electrical heart signal is used for ECG and bioelectrical impedance for body composition estimates; availability of these features varies by country. Samsung
Diving and durability	100 m water resistance under ISO 22810:2010 (WR100); recreational scuba diving to 40 m under EN13319; IP6X under IEC 60529; MIL-STD 810H testing The depth gauge is accurate to ±1 m; Apple advises against diving below 40 m. The MIL-STD 810H tests cover altitude, temperature shock, freeze/thaw, shock and vibration. Apple	—
Cellular and wireless	4G LTE and UMTS; Wi-Fi 4 (802.11n); Bluetooth 5.3; second-generation Ultra Wideband chip Cellular use needs a carrier plan. Ultra Wideband enables precision finding of an iPhone; availability depends on the country. Apple	—
Battery and charging	Up to 36 hours in normal use and 72 hours in Low Power Mode; fast charge to 80% in about 1 hour; built-in lithium-ion The box includes a 1 m magnetic fast charger to USB-C cable; no adapter. Apple	284 mAh (typical); faster WPC-based wireless charging WPC is the body behind the Qi wireless charging standard. The 44 mm version has a 410 mAh battery. Samsung
Controls and safety	Customisable Action button; Digital Crown with haptic feedback; siren; Emergency SOS, fall and crash detection The Action button is also used for Precision Start, beginning a workout recording at the exact start. The siren sounds a loud alert to call for help. Apple	—
Compatibility	iPhone Xs or later, or iPhone SE (2nd generation or later), with iOS 18 or later The watch is set up and used only with an iPhone; it does not work with Android phones. Apple	—
Operating conditions	On wrist –20 to 55 °C; diving 0–40 °C; altitude –500 to 9,000 m Apple	—
Case and colours	—	Armor Aluminum case with Sport Band; Graphite, Pink Gold, Silver Samsung
Size and weight	—	39.3 × 40.4 × 9.8 mm; 28.7 g (without strap) Samsung
Processor	—	Exynos W920, dual-core 1.18 GHz Samsung
Memory and storage	—	1.5 GB RAM; 16 GB internal storage Samsung
Software	—	At launch Wear OS Powered by Samsung (Wear OS 3.5) with One UI Watch 4.5 The watch works with phones running Android 8.0 or later with more than 1.5 GB of RAM; it cannot be used with an iPhone. Samsung
Connectivity	—	Bluetooth 5.2; Wi‑Fi 802.11 a/b/g/n 2.4 + 5 GHz; NFC; GPS/GLONASS/BeiDou/Galileo This version has no LTE; the LTE version is sold separately. Samsung
Durability	—	5ATM + IP68; MIL-STD-810H 5ATM suits shallow-water activities such as swimming, not diving. Samsung