Watch Series 12 GPS 42mm Smartwatch

About this item

Apple Watch Series 12 GPS, 42mm, is built around deeper health tracking: continuous heart rate monitoring, frequent HRV readings, sleep scoring, blood oxygen, and menstrual cycle tracking all live in the Vitals app. A daily readiness score helps you decide when to train and when to recover, while fitness features like Pacer and Heart Rate Zones keep workouts on track. Safety features include fall and crash detection with automatic emergency contact alerts, and the watch lasts up to 24 hours per charge with fast 15-minute top-ups. The case is reinforced with Ceramic Shield 2 (aluminum) or sapphire crystal (titanium/ceramic), and it connects to your iPhone or Wi-Fi for calls, texts, and notifications on the go.

• Tracks heart rate every 5 seconds and measures HRV as often as every 5 minutes, with sleep score, blood oxygen, and menstrual cycle tracking via the Vitals app
• Daily readiness score based on your recent activity, vitals, and sleep, so you know whether to push hard or rest
• Built-in fitness tools like Pacer, Heart Rate Zones, and Workout Buddy for running, hiking, and strength training
• Hard fall and severe car crash detection that can connect you to emergency services and alert your emergency contacts
• Up to 24 hours of battery on a normal day, with a 15-minute fast charge giving up to 12 hours of use
• Aluminum models get Ceramic Shield 2 front crystal; titanium and ceramic models use scratch-resistant sapphire crystal
• 42mm GPS model pairs with your iPhone or Wi-Fi for calls, texts, music, Siri, and notifications

Specifications

GPS

Built-in GPS

ASIN

‎B0HJ9ZXCSD

Chip

S11 chip with 64-bit dual-core processorAudio Intelligence (Live Rewind, Siri Recap, Shazam, Sound Recognition)4-core Neural Engine64GB capacity

Audio

SpeakerMicrophoneMedia playback

Brand

Apple

Shape

Rectangular

Safety

Emergency SOSInternational emergency callingFall DetectionCrash DetectionLast Emergency Call Availability WaypointFlashlightBacktrackNoise monitoringCheck In

Display

Always-On Retina display with wide-angle OLEDs and LTPO31Hz refreshActive area (42mm): 374 by 446 pixels, 326 pixels per inchActive area (46mm): 416 by 496 pixels, 326 pixels per inchCeramic Shield 2 (aluminum cases)Sapphire front crystal (titanium and ceramic cases)2000 nits peak brightness1 nit minimum brightness

Sensors

Health Sensing System: third-generation electrical heart sensor, always-on optical heart sensor, blood oxygen sensor, and temperature sensorCompassAlways-on altimeterHigh-g accelerometerHigh dynamic range gyroscopeAmbient light sensorDepth gauge to 6 metersWater temperature sensor

Controls

Digital Crown with haptic feedbackSide buttonSingle tap, double tap, and wrist flick gesturesSiri powered by Apple Intelligence

Durability

Water resistance 50m (swimproof) under ISO standard 22810:2010Dust resistance IP6X

Item Weight

‎8.6 ounces

Screen Size

42 millimeters

Connectivity

All modelsSupport for 2.4GHz and 5GHz Wi-Fi networksWi-Fi 4 (802.11n)Bluetooth 5.3Precision L1 GPS (GPS, GLONASS, Galileo, QZSS, and BeiDou)Second-generation Ultra Wideband chipApple PayGymKitModels A3582 and A3587Supports RedCap for 5G and LTEFDD-5G NR (Bands n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71)TDD-5G NR (Bands n38, n40, n41)FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71)TDD-LTE (Bands 38, 39, 40, 41)Support for Apple Watch For Your KidsInternational roaming

Manufacturer

‎Apple

Accessibility

Features include:VoiceOverZoomOn/Off LabelsReduce TransparencyIncrease ContrastColor FiltersText SizeBold TextReduce MotionHourly ChimesAssistiveTouchButton Click SpeedTouch AccommodationsAuto-Answer CallsType to SiriRTT SupportAudio Volume BalanceAuto TranscriptionLive SpeechAccessibility ShortcutMono AudioTaptic TimePersonal VoiceLive ListenSound Recognition

Size and Weight

Height (aluminum, titanium): 46mmHeight (ceramic): 47mmWidth (aluminum, titanium): 40mmWidth (ceramic): 41mmDepth (aluminum, titanium): 9.7mmDepth (ceramic): 9.85mm416 by 496 pixels1196 sq mm display areaWeight (aluminum, GPS): 39.5 gramsWeight (aluminum, GPS + Cellular): 38.6 gramsWeight (titanium): 44.9 gramsWeight (Pearl White ceramic): 51.3 gramsWeight (Night Blue ceramic): 52.9 gramsFits 140-245mm wrists

Special Feature

Activity Tracker, Cycle Tracking, GPS, Heart Rate Monitor

Operating System

watchOSwatchOS is the world's most advanced wearable operating system, with apps and features designed to keep you active, healthy, safe, and connected.

Item model number

‎MJED4LS/A