Apple Watch SE Gen 3

Category

Specification

Brand & Model

Apple Watch SE 3

Release Date

Announced September 9, 2025; Preorders open now with availability beginning September 19, 2025

Network

5G cellular support (first for SE series)

Dimensions

Height: 44 mm • Width: 38 mm • Depth: 10.7 mm

Weight

GPS only: 32.9 g • GPS + Cellular: 33.0 g

Display

Always-On Retina display, 368 × 448 pixels, 977 sq mm area; Ion-X glass that’s 4× more crack-resistant than SE 2

OS & UI

watchOS 26 featuring Liquid Glass design, wrist-flick gesture controls, Smart Stack hints, Workout Buddy, and Sleep Score functionality

Chipset

S10 chip, enabling faster performance and new gesture control features

CPU

Integrated in S10 chipset; dual-core architecture

GPU

Integrated; standard for S10 chipset

RAM & Storage

Not specified by Apple

Battery

Up to 18 hours of typical use

Charging

Fast charging — up to twice as quick as previous models

Connectivity

5G (cellular models), Bluetooth, Wi-Fi, GPS, NFC

Sensors

Heart rate sensor, wrist temperature sensor, gyroscope, accelerometer, GPS; supports sleep apnea detection and retrospective ovulation estimates

Protection

Water resistance rated to 50 m; Ion-X glass is 4× more crack-resistant; includes Crash Detection and Fall Detection

Colors Available

Aluminum case in midnight and starlight finishes

Environmental Credentials

Made with 40% recycled content, including 100% recycled cobalt in the battery and 100% recycled aluminum in the case; produced using 100% renewable electricity