Samsung Galaxy Watch Ultra2 (47 mm, LTE) / Apple Watch Ultra 2

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.

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.

SpecificationSamsung Galaxy Watch Ultra2 (47 mm, LTE)Apple Watch Ultra 2
Release year20262023
AvailabilityFrom 7 August 2026 in 106 markets Samsung—
Display1.5-inch (38.5 mm) Super AMOLED; 498 × 498 SamsungAlways-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
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 Samsung49 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
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; GLONASS, Galileo, QZSS, BeiDou

The L5 band helps reduce position errors where signals bounce, such as among tall buildings and dense trees.

Apple
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		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
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		—
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—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
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
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