Apple Watch SE 3 Technical Specifications

Aluminium case
Starlight, Midnight

- Height: 44 mm
- Width: 38 mm
- Depth: 10.7 mm
- 368x448 pixels
- 977 mm² display area
- Weight (GPS): 32.9 g
- Weight (GPS + Cellular): 33.0 g
- Fits 140–245 mm wrists

- Height: 40 mm
- Width: 34 mm
- Depth: 10.7 mm
- 324x394 pixels
- 759 mm² display area
- Weight (GPS): 26.3 g
- Weight (GPS + Cellular): 26.4 g
- Fits 130–200 mm wrists
- Digital Crown with haptic feedback
- Side button
- Double tap and wrist flick gestures
- Siri with on‑device processing

- S10 chip with 64‑bit dual core processor
- 4‑core Neural Engine
- 64GB capacity
- Second-generation optical heart sensor
- Temperature sensor1
- Compass
- Always-on altimeter
- High-g accelerometer
- High dynamic range gyroscope
- Ambient light sensor
- Always-On Retina display with OLED and LTPO
- Tough Ion-X front glass with 4x crack resistance4
- Up to 1,000 nits peak brightness
- 2 nits minimum brightness
- 326 pixels per inch
- Speaker
- Microphone
- Media playback

- Custom workouts
- Customisable Workout Views
- Training Load
- Heart Rate Zones
- Race Route
- Pacer
- Stride Length, Ground Contact Time and Vertical Oscillation
- Automatic track detection
- Multisport workout

- Compass with bearing, incline, elevation and coordinates
- Custom waypoints
- Automatically generated waypoints to cellular connectivity
- Backtrack GPS data
- Offline maps with custom route creation
- Topographic maps for thousands of national and regional parks (US only)
- Hundreds of curated hikes across all
63 US national parks

- Average speed, elevation gained and distance
- Connection to cycling accessories via Bluetooth
- Functional Threshold Power
- Power Zones
- Cadence
- Live Activity on iPhone

- Pool swim or open water swim
- Custom workouts for pool swims
- Splits and auto sets
- SWOLF score
- Automatic stroke detection
- Kickboard detection
- Average pace, total distance and laps
- Water resistance 50 m (swimproof)10
- All Models
- Support for 2.4GHz Wi-Fi networks
- Wi-Fi 4 (802.11n)
- Bluetooth 5.3
- L1 GPS (GLONASS, Galileo, QZSS and BeiDou)
- GymKit
- Model A3326 and A3328
- Supports RedCap for 5G11 and LTE12
- FDD‑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 Kids13
- International roaming14
Built‑in accessibility features supporting vision, mobility, hearing and cognitive disabilities.
- VoiceOver
- Zoom
- On/Off Labels
- Reduce Transparency
- Increase Contrast
- Colour Filters
- Text Size
- Bold Text
- Reduce Motion
- Hourly Chimes
- AssistiveTouch
- Button Click Speed
- Touch Accommodations
- Auto-Answer Calls
- Type to Siri
- RTT Support
- Audio Volume Balance
- Auto Transcription
- Live Speech
- Accessibility Shortcut
- Mono Audio
- Taptic Time
- Personal Voice
- Live Listen
0° to 35° C (32° to 95° F)
–20° to 45° C (–4° to 113° F)
5% to 90% non-condensing
0 m to 3,000 m (0 feet to 10,000 ft)