Samsung Galaxy Watch6 (40 mm) / Apple Watch Series 7 (45 mm, GPS)

Samsung Galaxy Watch6 (40 mm): Galaxy Watch6 40 mm: SM-R930 (Bluetooth) and SM-R935 (LTE); Graphite and Gold. The 44 mm Galaxy Watch6 and the Galaxy Watch6 Classic are separate models with different displays, batteries and weights.

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.

Specification	Samsung Galaxy Watch6 (40 mm)	Apple Watch Series 7 (45 mm, GPS)
Release year	2023	2021
Display	1.3-inch (33.3 mm) 432 × 432 Super AMOLED; full-colour Always On Display The 44 mm model has a 1.5-inch, 480 × 480 display. Samsung	Always-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
Glass	Sapphire Crystal Samsung	—
Processor	Exynos W930, dual-core 1.4 GHz Samsung	—
Memory and storage	2 GB memory + 16 GB storage Samsung	—
Battery	300 mAh (typical); up to 40 hours with Always On Display off, up to 30 hours with it on According to Samsung, an 8-minute quick charge adds about 8 hours of use; charging is WPC-based wireless. Samsung	—
Operating system	Wear OS 4 (Powered by Samsung) with One UI 5 Watch at launch Samsung	—
Sensors	Samsung BioActive (Optical Heart Rate + Electrical Heart Signal + Bioelectrical Impedance Analysis), temperature, accelerometer, barometer, gyro, geomagnetic, light sensor ECG and blood pressure work through the Samsung Health Monitor app only in markets where they are approved; blood pressure needs calibration with a cuff every four weeks. Body composition should not be used by people with implanted devices such as pacemakers or during pregnancy. Samsung	—
Connectivity	Bluetooth 5.3, Wi‑Fi 2.4 + 5 GHz, NFC, GPS/Glonass/Beidou/Galileo; LTE (SM-R935 only) Samsung	Wi-Fi 802.11b/g/n 2.4 and 5 GHz; Bluetooth 5.0 LTE/UMTS is only on GPS + Cellular models. Apple
Durability	5ATM + IP68, MIL-STD-810H 5ATM means water resistance to 50 metres for up to 10 minutes; the watch is not suitable for diving or high-pressure water. IP68 covers 1.5 metres of fresh water for 30 minutes. 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
Phone compatibility	Android 10 or higher with more than 1.5 GB of memory Some features, such as the camera controller and health measurements, need a Galaxy phone. Samsung	—
Size and weight	38.8 × 40.4 × 9.0 mm; 28.7 g Samsung	45 × 38 × 10.7 mm; aluminium: 38.8 g The 45 mm stainless steel case weighs 51.5 g and titanium 45.1 g. Apple
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
Location	—	GPS, GLONASS, Galileo, QZSS and BeiDou; compass; always-on altimeter 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