Samsung Galaxy Watch Ultra2 (47 mm, LTE) / Samsung Galaxy Watch8 44 mm Bluetooth (SM-L330)

Samsung Galaxy Watch Ultra2 (47 mm, LTE): SM-L715 · 47mm titanium case, LTE; Titanium Silver and Titanium Gray. The US version is SM-L715U and the European/Australian version SM-L715F; LTE bands vary by country.

Samsung Galaxy Watch8 44 mm Bluetooth (SM-L330): SM-L330 (44 mm, Bluetooth/Wi-Fi), aluminium case; Graphite and Silver. The 40 mm SM-L320, the LTE SM-L335 and the rotating-bezel Galaxy Watch8 Classic are separate models.

SpecificationSamsung Galaxy Watch Ultra2 (47 mm, LTE)Samsung Galaxy Watch8 44 mm Bluetooth (SM-L330)
Release year20262025
AvailabilityFrom 7 August 2026 in 106 markets Samsung—
Display1.5-inch (38.5 mm) Super AMOLED; 498 × 498 Samsung1.47-inch Super AMOLED, 480 × 480; full-colour Always On Display

Always On Display keeps the watch face visible but shortens battery life; when off, the screen wakes on wrist raise.

Samsung
BrightnessUp to 5,000 nits

This is peak brightness aimed at readability in sunlight, not sustained full-screen brightness.

Samsung		—
Case47 mm; titanium on the front and back cover areas, plastic and other materials elsewhere in the frame Samsung—
ProcessorSnapdragon Wear Elite; 5 cores (2.1 and 1.95 GHz) Samsung—
Memory and storage2 GB RAM; 64 GB (49.3 GB available) Samsung—
Battery800 mAh typical; up to 60 hours with AOD on, 80 hours with it off

AOD (always-on display) lets you read the watch without raising your wrist but cuts battery life by roughly a quarter.

Samsung		—
ChargingFast charging up to about 40% in 30 minutes Samsung—
Operating systemWear OS 7; security updates until 31 July 2031 Samsung—
WirelessBluetooth 6.0; Wi-Fi 802.11a/b/g/n (2.4 and 5 GHz); NFC Samsung—
Cellular4G LTE (FDD/TDD), 3G WCDMA; eSIM

LTE use depends on country and carrier support; the watch can make calls and use data without a phone.

Samsung		—
LocationGPS, GLONASS, BeiDou, Galileo, QZSS; dual-frequency (L1+L5) GPS

Receiving L1 and L5 together reduces errors caused by reflected signals near tall buildings and under trees.

Samsung		L1 + L5 dual-frequency GPS (GPS, GLONASS, BeiDou, Galileo)

The L5 band helps reduce route drift caused by reflections among tall buildings and trees.

Samsung
SensorsOptical heart rate, electrical heart (ECG), BIA, temperature, accelerometer, gyro, barometer, geomagnetic, light

BIA estimates body composition using a weak current through the wrist; ECG readings use the electrical heart sensor.

Samsung		Samsung BioActive Sensor (optical heart rate, electrical heart signal, bioelectrical impedance); temperature, accelerometer, barometer, gyro, geomagnetic, light

The electrical heart signal enables ECG and bioelectrical impedance enables body composition readings. ECG and blood pressure need a Samsung phone and country approval.

Samsung
Durability10 ATM; IP69K; EN13319; MIL-STD-810H

Samsung lists 100 m water resistance under ISO 22810 and operation between −20 and 55 °C while worn. EN13319 is a diving equipment standard.

Samsung		5ATM, IP68, MIL-STD-810H

5ATM means water resistance suitable for swimming, not diving or high-speed water sports. MIL-STD-810H refers to selected environmental tests from the military standard and is no guarantee against impacts.

Samsung
Buttons and sirenThree buttons and an orange Quick Button; holding it for 5 seconds sounds an 86 dB siren (audible up to 180 m)

Pressing the home button five times starts an emergency SOS.

Samsung		—
Size and weight47.4 × 47.1 × 10.7 mm; 61.5 g Samsung—
Phone compatibilityAndroid 13 or later phone with at least 1.5 GB of memory

Pairing with an iPhone is not supported.

Samsung		—
Glass and case—Sapphire crystal glass; 43.7 × 46 × 8.6 mm (excluding health sensors)

Sapphire crystal resists scratches better than ordinary glass. The 8.6 mm thickness excludes the sensor bump on the back.

Samsung
Processor and memory—Exynos W1000 (5-core, 3 nm); 2 GB RAM, 32 GB storage

32 GB of storage is enough to keep music and apps on the watch for phone-free runs.

Samsung
Battery and charging—435 mAh (typical); WPC-based fast wireless charging

The watch charges only wirelessly; it must align with Samsung’s charging puck, and some wireless chargers may not sit flat because of the band.

Samsung
Health features—Antioxidant Index (carotenoid measurement), Bedtime Guidance, Vascular Load, Running Coach

Antioxidant Index is measured by holding a fingertip on the sensor for about five seconds; Vascular Load needs the watch to be worn to sleep on at least 3 of the last 14 days. These are wellness indicators, not medical diagnoses.

Samsung
Connectivity—Bluetooth 5.3, Wi-Fi 2.4 + 5 GHz, NFC; this model has no LTE (Bluetooth)

On the Bluetooth model calls and notifications work while connected to the phone; NFC contactless payments depend on country and bank.

Samsung
Software and assistant—One UI 8 Watch on Wear OS 6; first smartwatch series to ship with Gemini

Gemini can act in Samsung Health, Calendar and Clock via voice; availability varies by device, language and country.

Samsung
Compatibility—Android 12 or later phones with more than 1.5 GB RAM

It cannot be used with an iPhone.

Samsung
Weight and colours—34.0 g (without band); Graphite, Silver Samsung