Apple Watch SE 3
The Apple Watch SE 3 (2025) provides an affordable smartwatch experience with the powerful S10 chip, an Always-On Retina display, advanced health features like sleep score and wrist temperature sensing, new one-handed gestures, 5G cellular support, and up to 18 hours of battery life with fast charging. It comes in two sizes and colors with a durable Ion-X glass cover.
Specifications
Specifications
| Sizes | 40mm and 44mm aluminum cases, colors Starlight and Midnight. |
| Display | Always-On Retina OLED with 1000 nits brightness and Ion-X strengthened glass. |
| Processor | Apple S10 dual-core chip with 64-bit architecture and 4-core Neural Engine. |
| Storage | 64GB internal storage. |
| Sensors | Optical heart rate (2nd gen), temperature, compass, always-on altimeter, accelerometer, gyroscope, ambient light. |
| Connectivity | GPS, 5G cellular, Wi-Fi, Bluetooth 5.3, NFC, eSIM. |
| Battery | 18 hours typical, fast charging to 80% in 45 minutes, wireless charging. |
| Health features | Sleep scoring, sleep apnea notifications, ovulation estimates, wrist temperature sensing, high/low heart rate alerts, irregular rhythm notifications. |
| Safety | Fall detection, crash detection, Emergency SOS, international emergency calling. |
| New gestures | Double-tap and wrist flick for easier control. |
| Software | watchOS 26 with new UI, Workout Buddy, and on-device Siri. |
| Water resistance | 50 meters for swimming. |















