Apple Watch Ultra 4 / Samsung Galaxy Watch7 44 mm Bluetooth

Apple Watch Ultra 4: A3579; 49 mm natural titanium; translucent gray Ocean Band

Samsung Galaxy Watch7 44 mm Bluetooth: Galaxy Watch7 44 mm Bluetooth (SM-L310); Green and Silver. The 40 mm (SM-L300), the LTE versions and the Galaxy Watch Ultra are separate models.

SpecificationApple Watch Ultra 4Samsung Galaxy Watch7 44 mm Bluetooth
Release year20262024
Announcement / availability9 / 18 September 2026 Apple—
CaseGrade 5 titanium; sapphire front crystal Apple—
Size49 × 44 × 12 mm Apple—
WeightNatural titanium case 63 g Apple—
DisplayLTPO3 OLED; 422 × 514 AppleSuper AMOLED; 480 × 480 (about 327–330 ppi); 2000 nits

The 2000-nit peak helps readability in sunlight; using the always-on display shortens battery life.

Samsung
Brightness1 nit minimum; 3000 nits peak Apple—
ChipS11; dual-core 64-bit Apple—
Storage64 GB Apple—
Health sensorsElectrical/optical heart; blood oxygen; temperature AppleBioActive sensor: heart rate, irregular heart rhythm notification (IHRN), ECG, blood pressure, BIA body composition; continuous SpO2; skin temperature

Availability of ECG and blood pressure depends on country and paired phone; blood pressure measurement is not offered in the US.

Samsung
Outdoor sensorsDepth, water temperature, compass, altimeter Apple—
PositioningPrecision dual-frequency GNSS Apple—
WirelessWi-Fi 4, 2.4/5 GHz; Bluetooth 5.3; UWB Apple—
CellularA3579: 5G RedCap and LTE Apple—
Manufacturer battery testUp to 50 hours normal use; 84 in Low Power Mode Apple—
ChargingAbout 45 minutes to 80% Apple—
Water / dust100 m rating; IP6X Apple—
Diving limitRecreational diving to 40 m Apple—
Phone compatibilityiPhone 11 / SE 2 or later; iOS 27+ Apple—
Processor and memory—Exynos W1000 (5 cores, 3 nm, 1.6 GHz); 2 GB RAM, 32 GB storage Samsung
Battery and charging—425 mAh; WPC-based fast wireless charging

A fast wireless charging puck is in the box, but no wall adapter.

Samsung
Location—Dual-frequency GPS (L1 + L5)

The L5 band helps separate signals reflected by tall buildings and trees; dual-frequency mode can increase battery use.

Samsung
Health features—Sleep apnea detection; Energy Score; AGEs Index (Labs, experimental)

Energy Score turns sleep, activity and heart data into a daily readiness score; AGEs Index is experimental and not for diagnosis.

Samsung
Connectivity—Bluetooth 5.3; Wi-Fi 2.4 + 5 GHz; NFC

This version has no cellular connection; calls and notifications come through the paired phone.

Samsung
Durability—5ATM, IP68, MIL-STD-810H; Armor Aluminum case

5ATM describes water resistance suitable for surface swimming; it is not for diving or high-speed water sports.

Samsung
Size and weight—44.4 × 44.4 × 9.7 mm; 33.8 g (without strap) Samsung
Feedback—Microphone, speaker, vibration motor Samsung
Colours—Green, Silver Samsung