Apple Watch Series 11 (46 mm, GPS) / Apple Watch Series 6 (40 mm, GPS)

Apple Watch Series 11 (46 mm, GPS): 46 mm aluminium case, GPS; Rose Gold, Silver, Space Gray, Jet Black. The 42 mm and GPS + Cellular (A3335, A3337) versions and the titanium cases with sapphire crystal are separate models.

Apple Watch Series 6 (40 mm, GPS): Apple Watch Series 6, 40 mm aluminium case, GPS (2020). The 44 mm and GPS + Cellular versions, stainless steel/titanium cases and the Nike and Hermès editions are separate.

Specification	Apple Watch Series 11 (46 mm, GPS)	Apple Watch Series 6 (40 mm, GPS)
Release year	2025	2020
Display	Always-On Retina, LTPO3 OLED (wide-angle OLED); 416 × 496 pixels, 1196 mm²; 326 ppi; up to 2,000 nits, 1 nit minimum Because LTPO can drop the refresh rate very low, the display stays dimly on even with the wrist down. Wide-angle OLED is used to reduce brightness loss when the screen is viewed from the side. Apple	Always-On Retina LTPO OLED; 324 × 394 pixels, 759 mm² display area; 1000 nits The Always-On display keeps the time and complications visible with the wrist down. Apple
Front glass	Ion-X glass with ceramic coating According to Apple, the coating gives twice the scratch resistance of the Series 10 Ion-X glass. Titanium cases use sapphire crystal. Apple	—
Chip and storage	S10 SiP (64-bit dual-core processor, 4-core Neural Engine); W3 wireless chip; 64 GB Apple	—
Health sensors	Electrical heart sensor; third-generation optical heart sensor; blood oxygen sensor; temperature sensor The electrical sensor records a single-lead ECG with the ECG app. According to Apple, blood oxygen and wrist temperature are for general wellness, not medical use. Apple	Blood oxygen sensor (Blood Oxygen app), electrical heart sensor (ECG app), third-generation optical heart sensor Apple states Blood Oxygen measurements are not for medical use and are only designed for general fitness and wellness. The ECG app is not intended for people under 22. Apple
Health notifications	Hypertension notifications; sleep apnea notifications; sleep score and sleep stages; irregular rhythm and high/low heart rate notifications Hypertension notifications do not measure blood pressure; they alert when patterns in the optical sensor data suggest high blood pressure. According to Apple, they are not for users under 22, those already diagnosed with hypertension or pregnant users. Apple	—
Water and dust resistance	50 m (ISO 22810:2010); IP6X dust Suitable for shallow swimming in a pool or the sea; not for scuba diving, waterskiing or high-velocity water sports. Apple	—
Wireless	Bluetooth 5.3; Wi-Fi 4 (802.11n) 2.4 and 5 GHz; second-generation Ultra Wideband; Apple Pay, GymKit This GPS model has no cellular connection; calls and data come through the paired iPhone or Wi-Fi. Ultra Wideband availability varies by country. Apple	Wi‑Fi 802.11b/g/n 2.4 and 5 GHz; Bluetooth 5.0 LTE and UMTS are only on GPS + Cellular models. Apple
Location	GPS, GLONASS, Galileo, QZSS, BeiDou; compass, always-on altimeter Apple	—
Battery	Up to 24 hours of normal use; up to 38 hours in Low Power Mode; built-in lithium-ion Times are based on Apple’s usage scenario; workouts, GPS and the Always-On display shorten them. Apple	—
Charging	About 80% in 30 minutes; 8 hours of use from 15 minutes; 8 hours of sleep tracking from 5 minutes The box includes a Magnetic Fast Charger to USB-C cable; Apple’s fast-charge figures used a separately sold 20 W USB-C adapter. Apple	—
Dimensions and weight	46 × 39 × 9.7 mm; 37.8 g; fits 140–245 mm wrists The 42 mm aluminium GPS version weighs 30.3 g. Apple	—
Compatibility	iPhone 11 or later, or iPhone SE (2nd generation or later), running iOS 26 or later The watch cannot be used with Android phones. Apple	Requires an iPhone 6s or later with iOS 14 or later Apple
Case and version	—	40 mm aluminium case, GPS; Silver, Space Gray, Gold, Blue, (PRODUCT)RED Stainless steel and titanium cases were only sold in the GPS + Cellular version. The 44 mm model uses the same chip but has a different display and weight. Apple
Water resistance	—	50 metres (ISO 22810:2010) Suitable for shallow-water swimming in a pool or the sea, but not scuba diving, waterskiing or high-velocity water. Apple
Chip	—	S6 SiP with 64-bit dual-core processor; W3 wireless chip; U1 Ultra Wideband chip Ultra Wideband availability varies by region. Apple
Storage	—	32 GB Apple
Other sensors and safety	—	Always-on altimeter, compass, accelerometer up to 32 g with fall detection, gyroscope, ambient light sensor; Emergency SOS On the GPS model, Emergency SOS needs the iPhone nearby; otherwise the watch must be on a known Wi‑Fi network with Wi‑Fi Calling on. International emergency calling is only on the cellular model. Apple
Battery and charging	—	Built-in lithium-ion battery; up to 18 hours; magnetic charging cable (1 m) The 18-hour figure comes from Apple’s August 2020 testing with pre-production watches paired to an iPhone; it varies with use. Apple
Other	—	Speaker, microphone, Apple Pay, GymKit; ceramic and sapphire crystal back Apple
Size and weight	—	40 × 34 × 10.7 mm; 30.5 g (aluminium, without band) Apple