Samsung Galaxy Watch7 44 mm Bluetooth / Apple Watch Ultra 2

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.

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.

Specification	Samsung Galaxy Watch7 44 mm Bluetooth	Apple Watch Ultra 2
Release year	2024	2023
Display	Super 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	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
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	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
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	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
Health sensors	BioActive 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	—
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	—
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
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
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
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
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