Smartwatch Apple Watch SE (3rd generation) GPS + Cellular 40mm Midnight Aluminium Case

The Apple Watch SE (3rd generation) GPS + Cellular 40mm Midnight Aluminium Case combines essential smartwatch features in a lightweight design. It has a 40mm Midnight aluminium case, an Always‑On OLED display with 324 × 394 pixels and 1000 cd/m² brightness, built‑in GPS and 5G mobile connectivity, and is water resistant up to 50 m. The watch includes health and safety sensors such as heart rate monitor, accelerometer, gyroscope, wrist temperature sensing and Sleep Score in the Vitals app, plus crash and fall detection. The device runs watchOS 11, has 64 GB flash storage and a Li‑ion battery that provides up to approximately 18 hours of typical use with faster charging support.

Advantages

The Always‑On display allows quick glanceable information without raising your wrist, while the OLED screen provides clear contrast and brightness. Integrated GPS, 5G and Wi‑Fi keep you connected whether you use GPS or cellular features. Enhanced durability with glass engineered to resist cracks improves everyday reliability. Health and safety functions — heart rate monitoring, wrist temperature sensing, Sleep Score, Crash Detection and Fall Detection — give broader insight into activity and wellbeing. Lightweight aluminium construction and a fluoroelastomer band deliver comfort for all‑day wear.

Suitable for

• Daily activity tracking and fitness monitoring
• On‑the‑go connectivity with GPS and cellular calls/data
• Sleep tracking and overnight vitals monitoring
• Water‑based activities within 50 m depth rating
• Users who need fall or crash detection for added safety

Key specifications

• Model: Apple Watch SE (3rd generation) GPS + Cellular
• Case size: 40 mm Midnight aluminium
• Display: OLED Always‑On, 324 × 394 pixels, 1000 cd/m²
• Storage: 64 GB flash
• Battery: Built‑in Li‑Ion, up to ~18 hours typical use; fast charging supported
• Connectivity: 5G, GPS, Wi‑Fi, Bluetooth 5.3, NFC
• Sensors: Heart rate monitor, accelerometer, gyroscope, wrist temperature sensor
• Water resistance: Up to 50 m
• Weight: 26.4 g
• Operating system: watchOS 11

How to use

Power on the watch and follow on‑screen instructions to pair with your iPhone and set up cellular if required. Customize watch faces, notifications and health tracking in the Watch app on your iPhone. Wear the watch snugly on your wrist for accurate heart rate, accelerometer and wrist temperature readings. Use the built‑in GPS for outdoor workouts and enable cellular to make calls or use data without your phone. Charge the device with the included magnetic charger and take advantage of fast charging when needed.

Recommendations

For reliable sensor readings, wear the watch during sleep and activities, keep the watchOS updated, and rinse and dry the watch after exposure to fresh or salt water. For cellular service, ensure your carrier supports Apple Watch cellular plans and activate the plan through your iPhone.