Apple Watch Series 12 GPS 42mm Black Aluminium Case Black Sport Band M/L

The Apple Watch Series 12 GPS 46mm (MJEC4X/A) is a more powerful health and fitness tracker. Better understand your body with the most accurate heart rate sensing in a wearable(1), with high-frequency HRV readings for insights on stress and recovery, cycle tracking(5) and sleep score. Stay motivated with readiness, advanced workout metrics and features like Pacer, Heart Rate Zones and more. And now every day is more effortless with Siri AI(3) and Audio Intelligence(4). Better understand your body with invaluable health insights. View your overnight health metrics with the Vitals app(6) and get a daily sleep score, track your menstrual cycle(5) and take readings of your blood oxygen(7). With advanced metrics and motivating features like Pacer, Heart Rate Zones and Workout Buddy powered by Apple Intelligence from your nearby iPhone(2) — Series 12 helps you stay active, from running to hiking to strength training. A smartwatch that puts your safety first. Series 12 can detect a hard fall or severe car crash, automatically help connect you with emergency services and notify your emergency contacts(8). With up to 24 hours of normal use so you can do all the things you love for longer(9). And it only takes 15 minutes to fast-charge for up to 12 hours of normal use(10). Series 12 (GPS) works with your iPhone or Wi-Fi to keep you connected. Use your smartwatch to send a message, take a call, listen to music, use Siri and get notifications.

Disclaimers:
Apple Watch Series 12 requires iPhone 11 or later with iOS 27 or later.
(1) Based on Apple-conducted study of heart rate accuracy, August 2026.
(2) Requires a paired Apple Intelligence–enabled iPhone and Bluetooth® headphones with device and Siri language set to English or Spanish (Mexico). To use Workout Buddy without your iPhone nearby, you must have a Wi-Fi or mobile network connection.
(3) Apple Intelligence is available with Siri and device language set to Chinese (Simplified), Chinese (Traditional), Danish, Dutch, English, French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Spanish, Swedish, Turkish or Vietnamese. Siri AI is available in beta in watchOS 27 and requires an Apple Intelligence–enabled device set to a supported language. Certain Apple Intelligence features that rely on server-side models are subject to daily usage limits, including but not limited to Siri AI. Daily limits may vary by feature, request complexity, system demand, system policies and other factors. Expanded access to such features will be available for a fee in the future. Use of these features is subject to the Apple Intelligence terms and conditions.
(4) Audio Intelligence includes Live Rewind, Siri Recap, Sound Recognition and faster Shazam. Live Rewind and Siri Recap will be available in beta in late 2026 and require an Apple Intelligence–enabled iPhone 16 or later (excluding iPhone 16e). Certain Audio Intelligence features that rely on server-side models are subject to daily usage limits, including but not limited to Live Rewind and Siri Recap.
(5) The Cycle Tracking app should not be used for birth control or to diagnose a health condition. Cycle deviation notifications inclusive of perimenopause are for people 40 years old or older.
(6) The Vitals app is for wellness purposes only and not for medical use.
(7) The Blood Oxygen app is for wellness purposes only and not for medical use.
(8) Emergency SOS requires a mobile network connection or Wi-Fi calling with an internet connection from your Apple Watch or nearby iPhone. Some mobile networks may not accept an emergency call from your Apple Watch if your Apple Watch isn't activated, if it isn't compatible with or configured to operate on a particular mobile network or if the mobile network does not support emergency calling over IMS.
(9) Battery life varies by use and configuration.
(10) Charge time varies with adapter, region, settings, initial battery levels, usage and environmental factors; actual results will vary.