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Apple Watch Series 12 42mm Black/Black Band M/L
Network
| Technology | GPS Only / GPS + Cellular Optional - Model MJEG4LS/A GPS, MJG54LS/A GPS + Cellular |
|---|---|
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - Via iPhone for GPS model, eSIM for Cellular |
| 3G Bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - Cellular model only |
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 53, 66, 71 - GPS+Cellular model |
| 5G Bands | 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 38, 40, 41, 53, 66, 71 SA/NSA - 5G RedCap Cellular model |
| Speed | LTE, 5G RedCap - GPS model via iPhone / Wi-Fi 4 (802.11n) 2.4GHz and 5GHz |
| GPS | Yes - Precision dual-frequency L1 + L5 GPS, GLONASS, Galileo, QZSS, BeiDou / Second generation Ultra Wideband chip / GPS Enabled / Satellite Navigation System GPS |
Body
| Dimensions | 42 x 37 x 9.7 mm / Height 1.654 Inches Width 1.457 Inches Depth 0.382 Inches / Height aluminium, titanium 42 mm Width 37 mm Depth 9.7 mm |
|---|---|
| Weight | 32.2 g (1.14 oz) Aluminum GPS / 32.2 grams Aluminum GPS / 31.5 grams Aluminum GPS + Cellular / Weight 1.14 Ounces GPS / 1.11 Ounces GPS+Cellular / 32.2 g |
| Build | Dark Bronze Aluminum Case - Aluminum case with Ceramic Shield 2 front, Ion-X strengthened? / Sapphire Crystal for titanium variants / Ceramic and sapphire crystal back / 100% recycled aluminum |
| SIM | eSIM for Cellular model / No SIM for GPS model / Water resistant 50m / Maximum Depth of Water Resistance 164 Ft / Water Resistant / Swimproof / Depth gauge to 6 metres / Water temperature sensor / Dust resistant IP6X |
| Case Material | Aluminum - Dark Bronze Aluminum / Aluminum / Smart Watch Case Material Aluminum / Aluminium case |
| Case Color | Dark Bronze - True Color Dark Bronze / Dark Bronze / Smart Watch Case Color Dark Bronze |
| Band Material | Sport Band - Fluoroelastomer / Rubber / Sport Band / Smart Watch Band Material Sport Band |
| Band Color | Olive - Olive Sport Band / Smart Watch Band Color Olive / Band Color Olive |
| Band Size | M/L - Medium/Large / Fits 150-200mm wrists / S/M fits 130-180mm, M/L fits 150-200mm / Olive Sport Band S/M Fits 130-200mm wrists / Band Fits Size S/M 130-180mm M/L 150-200mm |
Display
| Type | Always-On Retina display with wide-angle OLEDs and LTPO3, 1Hz refresh, 1 nit minimum brightness, 2000 nits peak brightness / LTPO3 OLED / OLED / Retina OLED / Always-On Retina display with wide-angle OLEDs and LTPO3 |
|---|---|
| Size | 42mm - 970 sq mm display area / 1.78 inches / 42 millimeters / Display Area 970 sq mm / 970-sq-mm display area |
| Resolution | 374 x 446 pixels (~326 ppi density) / 374 x 446 / 374 by 446 pixels / Screen Resolution 374 x 446 / 374 x 446px, 970mm2 display area |
| Protection | Ceramic Shield 2 / Ceramic Shield 2 - Tougher than any smartwatch glass / Smart Watch Screen Material Sapphire Crystal for Ti / Ion-X strengthened? Ceramic Shield 2 Aluminum / Glass Type Ceramic Shield 2 |
Platform
| OS | watchOS 12? / watchOS - watchOS 27? / OS Type watchOS / Operating System watchOS / watchOS 12 with Apple Intelligence |
|---|---|
| Chipset | Apple S11 - S11 chip with 64-bit dual-core processor, 4-core Neural Engine, W3 wireless chip, U2 Ultra Wideband second gen / Audio Intelligence / Processor Name S11 Chip / Number of Cores 2 / S11 chip with 64-bit dual-core processor |
| CPU | Dual-core 64-bit / 64-bit dual-core processor / Dual-core / Number of Cores 2 |
| GPU | PowerVR |
Memory
| Card Slot | No |
|---|---|
| Internal | 64GB / 64 gigabytes / Built-in Storage Yes / Internal Storage 64GB / Storage Capacity 64GB / 64GB capacity |
Main Camera
| Dual | No |
|---|
Selfie Camera
| Single | No |
|---|
Sound
| Loudspeaker | Yes - Built-in Speakers / Speaker Availability Built-in Speakers / Dual speakers / Media Playback |
|---|---|
| 3.5mm Jack | No |
| Microphone | Yes - Built-in Mic / Microphone with Voice Isolation / Built-In Microphone Yes / Three-microphone array? / MicrophoneFeatures Voice Isolation / Built-in Mic Yes |
Comms
| WLAN | Wi-Fi 4 (802.11n), Support for 2.4GHz and 5GHz Wi-Fi Networks / IEEE 802.11a/b/g/n / Wi-Fi 802.11 b/g/n / Wi-Fi Supported Yes / Wi-Fi Specifications Wi-Fi 4 |
|---|---|
| Bluetooth | 5.3, A2DP, LE / Bluetooth v5.3 / Bluetooth Supported Yes / Bluetooth Specifications Bluetooth v5.3 / Bluetooth Version 5.0? Actually 5.3 |
| Positioning | GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS / Precision L1 GPS (GPS, GLONASS, Galileo, QZSS and BeiDou) / Second generation Ultra Wideband chip / GPS, Galileo, GLONASS, QZSS / GPS Enabled Yes |
| NFC | Yes - Apple Pay / NFC |
| Infrared Port | No |
| Radio | No |
| USB | No - Magnetic Fast Charger to USB-C Cable / Charger Included Yes / Fast charging |
| UWB | Yes - Second-generation Ultra Wideband (UWB) chip / Second gen UWB |
Features
| Sensors | 3rd gen Electrical Heart, Always-on Optical Heart, Blood Oxygen, Temperature, Compass, Always-on altimeter, High-g accelerometer, High-dynamic-range gyroscope, Ambient light, Depth gauge to 6 metres, Water temperature / Barometric Altimeter Yes, Electrocardiogram ECG Yes, Blood Oxygen Yes, Temperature Sensors Yes, Fall Detection Yes, Accelerometer Yes, Gyroscope Yes / Health Sensing System: third-generation electrical heart sensor, always-on optical heart sensor, blood oxygen sensor and temperature sensor |
|---|---|
| Health | Readiness app, Vitals app with heart rate, respiratory rate, wrist temperature, sleep duration and HRV, Blood Oxygen app, ECG app, Heart Rate app, High and low heart rate notifications, Recovery HRV, Irregular rhythm notifications, Advanced Cycle Tracking, Medications app, Mindfulness, Noise, Sleep app including sleep stages, Sleep score, Sleep apnoea notifications, Hypertension notifications / Metrics Measured Altitude changes, Blood oxygen, Resting heart rate, Skin temperature, Water temperature, ECG, Duration of sleep stages, Duration of exercise, Hours slept |
| Safety | Fall Detection, Crash Detection, Emergency SOS, Check In, Noise Monitoring, Last Emergency Call Availability Waypoint |
| Controls | Digital Crown with haptic feedback, Side button, Single tap, double tap and wrist flick gestures, Siri powered by Apple Intelligence, Audio intelligence Live Rewind Siri Recap Shazam Sound Recognition / On-Device Control Type Touch Controls Buttons Rotary Wheel / Digital Crown with Haptic Feedback |
Battery
| Type | Li-Ion - Built-in rechargeable lithium-ion battery |
|---|---|
| Charging | Magnetic Fast Charger to USB-C Cable / Fast-charge 15 minutes for up to 12 hours of normal use / Up to 80% charge in about 30-45 minutes / Charge time varies with adapter / Charger Included Yes |
| Battery Life | Up to 24 hours of normal use, Up to 38 hours in Low Power Mode, Up to 10 hours outdoor workout / Usage Time 24 / Battery Life Up to 24 hours normal use / Up to 15 minutes to fast-charge for up to 12 hours / Battery life varies by use and configuration |
Our Tests
| Performance | S11 chip with 64-bit dual-core processor, 4-core Neural Engine / S11 Chip / 2 Cores |
|---|---|
| Display | 2000 nits peak brightness (measured) / Brightness 2000 Nits / 1 nit minimum brightness / Always-On Retina display with wide-angle OLEDs and LTPO3 |
| Loudspeaker | Built-in Speakers - Very good |
| Battery | Active use score 24h normal / 38h Low Power Mode |
| Announcement | Announced September 2026 / Model Number MJEF4X/A / MJEG4LS/A / MJG54LS/A / MJEG4LS/A GPS / MJG54LS/A GPS+Cellular / Available 2026 |
| Price | - |
Eu Label
| In Box | Watch, Olive Sport Band M/L, Apple Watch Magnetic Fast Charger to USB-C Cable (1m) / Charger Included Yes |
|---|---|
| Compatibility | iPhone 11 / iPhone SE 2nd Gen or later with iOS 27 / Compatible Phones iPhone 11 / iPhone SE 2nd Gen or later with iOS 27 / Tracker OS Compatibility iOS / Operating System Compatibility Apple iOS |
| Warranty | 1 Year Limited Warranty |
Identifiers
| MPN | MJEC4ET/A |
|---|---|
| GTIN / EAN / UPC | 195951225524, 0195951225524 |
