Apple Watch SE (3nd generation) SE 3 GPS + Cellular 40mm Midnight Aluminium Case with Navy Blue Sport Band - M/L
£307.99
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Key specs
- Display resolution324 x 394 pixels
- Operating system installedwatchOS 27
- Processor modelS10
- Wi-Fi standardsWi-Fi 4 (802.11n)
- Battery life (max)32 h
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Overview
- Get advanced health tracking — including your overnight sleep score — just by wearing your watch
- Track your workouts and daily activity, like moving, exercising, and standing with Activity rings
- The redesigned Health app provides deeper, more personal insights into your health
- Meet Siri AI. Your AI assistant. More personal. More powerful
- Keep help close at hand with safety features like Crash Detection and Fall Detection
- Stay in the moment with all-day, 18‑hour battery life and fast charging
Walk it. Track it. Love it.
Specifications
Display
| Display type | Digital |
|---|---|
| Display resolution | 324 x 394 pixels |
| Touchscreen | Yes |
| Display technology marketing name | Retina |
| Display technology | OLED |
| Display area | 759 mm² |
| Display brightness (min) | 2 cd/m² |
| Display brightness | 1000 cd/m² |
| Pixel density | 326 ppi |
| Always-on display | Yes |
| Colour display | Yes |
| Rounded display corners | Yes |
| Watch glass type | Ion-X glass |
Processor
| Neural processor unit (NPU) | Apple Neural Engine (ANE) |
|---|---|
| Neural processor unit (NPU) cores | 4 |
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Performance
| Built-in microphone | Yes |
|---|---|
| Built-in speaker(s) | Yes |
| Built-in camera | No |
| FM radio | No |
| Mobile operating systems supported | iOS |
| Operating system installed | watchOS 27 |
| Flash memory | 64 GB |
| Processor model | S10 |
| Processor cores | 4 |
| 64-bit computing | Yes |
| Crash detection | Yes |
| Fall detection | Yes |
| Check In function | Yes |
| Backtrack | Yes |
| Noise monitoring | Yes |
| Languages support | Multi |
Design
| Market positioning | Smartwatch |
|---|---|
| Watch case size | 40 mm |
| Watch case colour | Navy |
| Watch case material | Aluminium |
| Band colour | Navy |
| Band size | M/L |
| Wrist size range | 130 - 200 mm |
| Shape | Rectangular |
| Magnetic charging connector | Yes |
| Removable strap | Yes |
| Protection features | Water resistant, Waterproof |
| Waterproof up to | 50 m |
Features
| Accessibility features | Accessibility Shortcut, AssistiveTouch, Audio Volume Balance, Auto Transcription, Auto-Answer Calls, Bold Text, Button Click Speed, Color Filters, Hourly Chimes, Increase Contrast, Live Speech, Mono Audio, On/Off Labels, Personal Voice, RTT Support, Reduce Motion, Reduce Transparency, Taptic Time, Text Size, Touch Accommodations, Type to Siri, VoiceOver, Zoom, Live Listen |
|---|---|
| Heart rate monitor | Yes |
| Heart rate sensor type | Optical |
| Sleep apnea detection | Yes |
| Distance travelled | Yes |
| Accelerometer | Yes |
| Gyroscope | Yes |
| Activity tracker | Yes |
| Multisport mode | Yes |
| Quality of sleep | Yes |
| Irregular rhythm notifications | Yes |
| Double tap gesture | Yes |
| SOS alert function | Yes |
| Personal info management (PIM) | SOS |
| Apple Intelligence | Yes |
| Virtual pacer function | Yes |
| Haptic feedback | Yes |
| Workout tracking | Yes |
| Virtual assistant | Apple Siri |
| Recommended activity | Cooldown, Cycling, Dance, Elliptical, Golf, HIIT, Hiking, Kickboxing, Outdoor rowing, Paddling, Pilates, Running, Skiing, Snowboarding, Stair stepper, Swimming, Tai Chi, Walking, Weight training, Wheelchair, Yoga |
| Skin temperature sensor | Yes |
| Electronic compass | Yes |
| Ambient light sensor | Yes |
| Altimeter | Yes |
Network
| Mobile network connection | Yes |
|---|---|
| Mobile network generation | 5G |
| 4G standard | LTE-TDD & LTE-FDD |
| 5G standard | NR |
| GPS (satellite) | Yes |
| BeiDou | Yes |
| GLONASS | Yes |
| Galileo | Yes |
| Quasi-Zenith Satellite System (QZSS) | Yes |
Ports & interfaces
| USB port | No |
|---|---|
| Wi-Fi | Yes |
| Wi-Fi standards | Wi-Fi 4 (802.11n) |
| Bluetooth | Yes |
| Bluetooth version | 5.3 |
| Bluetooth Low Energy (BLE) | Yes |
| Near Field Communication (NFC) | Yes |
| Headphone connectivity | Bluetooth |
Power
| Battery type | Built-in battery |
|---|---|
| Battery technology | Lithium-Ion (Li-Ion) |
| Battery life (max) | 32 h |
| Battery life | 18 h |
| Fast charging | Yes |
| Battery recharge time(80%) | 0.75 h |
| Wireless charging | Yes |
Operational conditions
| Operating temperature (T-T) | 0 - 35 °C |
|---|---|
| Storage temperature (T-T) | -20 - 45 °C |
| Operating relative humidity (H-H) | 5 - 90% |
| Operating altitude | 0 - 3000 m |
General
| Product series | SE (3nd generation) |
|---|---|
| Product family | Watch |
Software
| Health and Wellness apps | Heart Rate app; High and low heart rate notifications; Irregular rhythm notifications; Advanced Cycle Tracking app with fertile window estimates, retrospective ovulation estimates, and perimenopause and menopause support; Medications app; Mindfulness app; Noise app; Sleep app including sleep stages; Sleep score; Sleep apnea notifications |
|---|
Weight & dimensions
| Width | 34 mm |
|---|---|
| Depth | 40 mm |
| Thickness | 1.07 cm |
| Weight | 26.4 g |
Packaging content
| Cables included | Magnetic Fast Charger to USB‑C |
|---|
Customer reviews
Delivery & returns
Delivery
- FREE standard delivery on orders over £50, otherwise £4.95 (3–5 working days).
- Express delivery £9.99 (1–3 working days) on selected products, UK mainland.
- PlayStation and Arozzi products use a 5–7 working-day service.
- Orders are processed within 24 hours, Monday to Friday excluding bank holidays. All deliveries must be signed for.
Returns
- Changed your mind? Tell us within 14 days of receiving your item, then return it within a further 14 days, unused and in its original packaging. A minimum £9.99 collection fee applies.
- Faulty or damaged on arrival? Contact us within 48 hours of delivery.
- Custom-built PCs can only be returned if faulty. Opened headphones, earphones and AirPods can't be returned for hygiene reasons.
