Samsung Galaxy Watch6 Classic (47 mm) / Apple Watch Series 8 (45 mm, GPS)

Samsung Galaxy Watch6 Classic (47 mm): Galaxy Watch6 Classic 47 mm (2023); the Bluetooth version is SM-R960, and the LTE version is sold under a separate model code. The 43 mm Classic, the flat-bezel Galaxy Watch6 and the later Watch8 Classic are separate models.

Apple Watch Series 8 (45 mm, GPS): Apple Watch Series 8, 45 mm aluminium case, GPS model. The 41 mm case, GPS + Cellular and stainless steel versions are separate models; weight and screen size differ.

Specification	Samsung Galaxy Watch6 Classic (47 mm)	Apple Watch Series 8 (45 mm, GPS)
Release year	2023	2022
Display	1.5-inch (37.3 mm) Super AMOLED, 480 × 480 pixels; full-colour Always On Display; sapphire crystal glass According to Samsung, the display is larger than on the Watch4 Classic and the rotating bezel is 15% thinner. Sapphire crystal resists scratches; the bezel partly surrounds the edge of the screen. Samsung	Always-On Retina LTPO OLED; 396 × 484 pixels; 1143 sq mm display area; up to 1000 nits The LTPO panel can lower its refresh rate a lot, so the screen stays on dimmed when the wrist is down. Apple
Rotating bezel	Physical rotating bezel; menu, notification and app control Turning the bezel moves between notifications and tiles without touching the screen; its position is sensed by a 3D Hall sensor. Samsung	—
Case	Stainless steel; quick-release band button Samsung	—
Processor, memory and storage	Exynos W930 dual-core 1.4 GHz; 2 GB memory, 16 GB storage Samsung	—
Battery and charging	425 mAh; up to 40 hours with Always On Display off, up to 30 hours with it on; WPC-based fast wireless charging Samsung’s fast-charge testing used the magnetic fast-charging cable and a separately sold 25 W adapter. Battery life varies with network, usage and watch face. Samsung	Up to 18 hours; built-in lithium-ion battery; USB-C magnetic fast charging cable Apple’s 18-hour figure is based on 90 time checks, 90 notifications, 45 minutes of app use and a 60-minute workout with music; sleep tracking is not part of that scenario. Apple
Operating system	Launched with Wear OS 4 (Wear OS Powered by Samsung) and One UI 5 Watch Setup needs a phone with Google Mobile Services, Android 10 or later and more than 1.5 GB of memory; it does not work with an iPhone. Samsung	—
Sensors	Samsung BioActive Sensor (optical heart rate + electrical heart signal + bioelectrical impedance analysis), temperature, accelerometer, barometer, gyro, geomagnetic, light and 3D Hall sensor Bioelectrical impedance analysis passes a weak current through the body when two fingers rest on the buttons to estimate muscle, fat and water; it should not be used with a pacemaker or during pregnancy. ECG and blood pressure work only in approved markets through Samsung Health Monitor. Samsung	—
Connectivity	Bluetooth 5.3, Wi‑Fi 2.4 + 5 GHz, NFC, GPS/GLONASS/BeiDou/Galileo LTE is only on the LTE version; on the Bluetooth version internet and notifications come through the paired phone. Samsung	Wi-Fi 802.11b/g/n 2.4 and 5 GHz; Bluetooth 5.3 Apple
Durability	5ATM + IP68, MIL-STD-810H 5ATM corresponds to 50 metres for 10 minutes; it is not suitable for diving or high-pressure water. IP68 covers 1.5 metres in fresh water for 30 minutes. Samsung	Water resistant to 50 metres under ISO 22810:2010; IP6X dust; ceramic and sapphire crystal back Suitable for shallow-water activities in a pool or the sea; not for scuba diving, waterskiing or high-velocity water. Apple
Size and weight	46.5 × 46.5 × 10.9 mm; 59.0 g (without band) Thickness is measured without the health sensors. Samsung	45 × 38 × 10.7 mm; aluminium GPS: 38.8 g Apple
Chip	—	S8 SiP with 64-bit dual-core processor; W3 wireless chip; U1 (Ultra Wideband) Ultra Wideband is used for close-range location with an iPhone; availability varies by region. Apple
Health sensors	—	Blood oxygen sensor; electrical heart sensor (ECG app); third-generation optical heart sensor The Blood Oxygen app is not for medical use. The ECG app is not intended for people under 22 and may not be available in every country. Apple
Motion and safety	—	High-g accelerometer up to 256 g (Fall Detection and Crash Detection); high dynamic range gyroscope; Emergency SOS; international emergency calling On the GPS model, Emergency SOS needs a nearby iPhone or Wi-Fi Calling; international emergency calling works only on cellular models. Apple
Location	—	L1 GPS, GLONASS, Galileo, QZSS and BeiDou; compass; always-on altimeter This is single-frequency (L1) GPS; drift between tall buildings can be higher than on dual-frequency models. Apple
Storage	—	32 GB Apple
Compatibility	—	Requires iPhone 8 or later with iOS 16 or later It cannot be used with Android phones. Apple
Colours	—	Aluminium: Midnight, Starlight, Silver, (PRODUCT)RED Apple