Apple Watch Series 12 GPS — 42mm Black Aluminium Case with Black Sport Band
Series 1242 mmGPSBlack aluminium
The Apple Watch Series 12 GPS (MJEC4ZR/A) combines a 42 mm black aluminium case with a black Sport Band, an Always-On Retina display, the S11 SiP and Apple’s Health Sensing System, for iPhone users who want health, fitness and notifications on the wrist.
Series 12 measures heart rate continuously, records ECGs, tracks blood oxygen and temperature for wellness insights, and adds sleep apnoea and hypertension notifications, fall detection and a daily Readiness score. Battery life is up to 24 hours in normal use, or up to 38 hours in Low Power Mode, and fast charging reaches about 80% in around 30 minutes. It is water resistant to 50 m for swimming, and the 42 mm case suits smaller wrists and a lighter feel.
Before you order: Apple Watch requires an iPhone 11 or later, or iPhone SE (2nd generation or later), running iOS 27 or later. It does not work with Android phones.
What's in the Box
- 1 × Apple Watch Series 12 GPS, 42 mm black aluminium case
- 1 × Black Sport Band (one size in the box — ask us to confirm S/M or M/L before ordering)
- 1 × Apple Watch Magnetic Fast Charger to USB-C Cable (1 m)
- No power adapter included
What It Means in Practice
- GPS model: calls, messages and data go through your paired iPhone; outdoors it tracks runs and rides with GPS even without the phone.
- Always-On display with 2000 nits peak brightness stays readable in bright Cyprus sunlight.
- Health features include ECG, irregular rhythm, hypertension and sleep apnoea notifications, blood oxygen (wellness use) and fall detection.
- Charge with the included USB-C cable and any USB-C power adapter.
What Will Not Work
- It does not work with Android phones.
- The GPS model has no mobile connection of its own — without the iPhone nearby it cannot make calls over the mobile network.
- ECG and some health notifications have age and diagnosis restrictions set by Apple (for example ECG is for users 22 and over).
- No power adapter in the box; use an existing USB-C adapter or buy one separately.
Key Features
Always-On Retina
LTPO3 wide-angle OLED, up to 2000 nits, down to 1 nit at night.
Health Sensing System
Electrical and optical heart sensors, blood oxygen and temperature sensors.
All-day battery
Up to 24 h, 38 h in Low Power Mode, fast charge to ~80% in ~30 min.
Swim-proof
Water resistant to 50 m (ISO 22810) and IP6X dust resistant.
Technical Specifications
| Identification |
| Part Number |
MJEC4ZR/A |
| EAN / GTIN |
0195951225692 |
| Brand |
Apple |
| Model |
Apple Watch Series 12 GPS, 42 mm |
| Case & Display |
| Case |
Aluminium, Black, 42 × 37 × 9.7 mm |
| Weight (GPS) |
32.2 g |
| Display |
Always-On Retina, LTPO3 wide-angle OLED, 374 × 446 px, 970 sq mm, 326 ppi |
| Brightness |
Up to 2000 nits, down to 1 nit |
| Chip & Storage |
| Chip |
S11 SiP, 64-bit dual-core, 4-core Neural Engine |
| Storage |
64GB |
| Battery |
| Normal use |
Up to 24 h |
| Low Power Mode |
Up to 38 h |
| Workout |
Up to 10 h |
| Fast charge |
About 80% in about 30 min |
| Sensors & Health |
| Sensors |
Electrical heart sensor (2nd gen), optical heart sensor, blood oxygen, temperature, compass, altimeter, accelerometer, gyroscope, ambient light, depth gauge to 6 m, water temperature |
| Health features |
ECG, irregular rhythm notifications, hypertension notifications, sleep apnoea notifications, Blood Oxygen (wellness), fall detection |
| Connectivity & Durability |
| Wireless |
Wi-Fi 4 (802.11n) 2.4/5 GHz, Bluetooth 5.3, L1 GPS, Ultra Wideband (2nd gen) |
| Water resistance |
50 m (ISO 22810:2010) |
| Dust |
IP6X |
| Band |
Black Sport Band; case fits bands for 38, 40, 41 and 42 mm (Series 10 and later) cases; wrist range for 42 mm across band options 130–200 mm |
| Requirements |
| iPhone |
iPhone 11 or later, or iPhone SE (2nd gen or later) |
| Software |
iOS 27 or later; ships with watchOS 27 |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
Apple One (1) Year Limited Warranty, in addition to your consumer-law rights — claims handled through Singular |
Frequently Asked Questions
Does it work with my Android phone?
No. Apple Watch needs an iPhone 11 or later, or iPhone SE (2nd generation or later), with iOS 27.
Can I swim with it?
Yes. It is water resistant to 50 m, suitable for swimming in a pool or the sea, but not for diving or high-velocity water sports.
Which bands fit the 42 mm case?
Bands made for 38, 40, 41 and 42 mm (Series 10 and later) cases fit. Bands for the 46 mm case size group do not.
Is a charger included?
The magnetic fast charging cable (USB-C) is included; the power adapter is not.
Singular Expert Insight · Buyer's Guide
Series 12 is the mainstream Apple Watch: the new health sensors and all-day battery cover what most iPhone users need, without paying for Ultra. Pick the case size by wrist and screen preference, and remember the GPS model relies on your iPhone for calls. Explore more of our range in the
Singular catalogue, including extra Sport Bands.
✓ Buy it if you use an iPhone 11 or later and want health tracking, notifications and fitness features on the wrist.
✕ Skip it if you use Android, or you need the watch to make calls without your iPhone nearby.
→ Also consider The 46 mm Series 12 case size, or extra Apple Sport Bands to change colour.
Not sure which size or band fits? Tell us your wrist size and iPhone model and we will help you choose.