Samsung Galaxy Watch Ultra2 (47 mm, LTE) / Apple Watch Series 7 (45 mm, GPS)

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 Series 7 (45 mm, GPS): Apple Watch Series 7, 45 mm aluminium case, GPS model. The 41 mm case, GPS + Cellular, stainless steel and titanium versions are separate configurations with different display area and weight.

SpecificationSamsung Galaxy Watch Ultra2 (47 mm, LTE)Apple Watch Series 7 (45 mm, GPS)
Release year20262021
AvailabilityFrom 7 August 2026 in 106 markets Samsung—
Display1.5-inch (38.5 mm) Super AMOLED; 498 × 498 SamsungAlways-On Retina LTPO OLED; 396 × 484 pixels; 1,143 mm² display area; 1,000 nits brightness

The 41 mm case has 352 × 430 pixels and 904 mm² of display area. The LTPO panel lowers its refresh rate when the wrist is down so the screen can stay on.

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 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		GPS, GLONASS, Galileo, QZSS and BeiDou; compass; always-on altimeter 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		—
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		Water resistant to 50 metres under ISO 22810:2010; IP6X dust resistant; ceramic and sapphire crystal back

Suitable for shallow-water activities such as swimming in a pool or the sea; not for scuba diving, waterskiing or high-velocity water.

Apple
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 Samsung45 × 38 × 10.7 mm; aluminium: 38.8 g

The 45 mm stainless steel case weighs 51.5 g and titanium 45.1 g.

Apple
Phone compatibilityAndroid 13 or later phone with at least 1.5 GB of memory

Pairing with an iPhone is not supported.

Samsung		—
Chip—S7 SiP with 64-bit dual-core processor; W3 wireless chip; U1 (Ultra Wideband)

Ultra Wideband availability varies by region.

Apple
Health sensors—Blood oxygen sensor (Blood Oxygen app); electrical heart sensor (ECG app); third-generation optical heart sensor

Blood oxygen readings are not for medical use. The ECG app and irregular rhythm notification need the latest watchOS/iOS and are not intended for people under 22.

Apple
Motion and safety—Accelerometer up to 32 g-forces with fall detection; gyroscope; ambient light sensor; Emergency SOS

On the GPS model, Emergency SOS needs the iPhone nearby or a known Wi-Fi network with Wi-Fi Calling; international emergency calling is only on the GPS + Cellular model.

Apple
Connectivity—Wi-Fi 802.11b/g/n 2.4 and 5 GHz; Bluetooth 5.0

LTE/UMTS is only on GPS + Cellular models.

Apple
Storage—32 GB Apple
Battery and charging—Up to 18 hours; built-in lithium-ion battery; USB-C magnetic fast charging cable

Apple’s battery test was done in August 2021 with preproduction watches paired to an iPhone; actual life varies with use and settings. The fast-charge test used the A2515 cable and a 20 W USB-C adapter; the adapter is not in the box.

Apple
Compatibility—Requires iPhone 6s or later with the latest iOS

Per Apple’s launch documentation; some features are unavailable when the watch is set up through Family Setup.

Apple
Colours—Aluminium: Midnight, Starlight, Green, Blue, (PRODUCT)RED Apple