Apple Watch SE Gen 2 40mm GPS

Type: Retina LTPO OLED

Size: 1.57 inches

Resolution: 324 x 394 pixels

Brightness: Up to 1000 nits

Always-On Display: ❌ (Not supported)

Performance

Chipset: Apple S8 SiP (System in Package)

Processor: Dual-core

Neural Engine: Yes

Storage: 32GB

Sensors

Heart Rate Sensor: Optical heart sensor (2nd Gen)

Accelerometer: Yes (up to 256 g-forces, crash detection support)

Gyroscope: Yes

Compass: Yes

Altimeter: Always-on

Connectivity

GPS: Yes (L1)

Wi-Fi: 802.11b/g/n 2.4GHz

Bluetooth: 5.3

Cellular: ❌ (Only in GPS + Cellular model)

Health & Safety Features

Heart Rate Monitoring: Yes

Fall Detection: Yes

Crash Detection: Yes

Emergency SOS: Yes

Sleep Tracking: Yes

Battery & Charging

Battery Life: Up to 18 hours

Charging Method: Magnetic fast charging USB-C cable

Charging Time: ~80% in 1 hour, ~100% in 1.5 hours

Software & Compatibility

Operating System: watchOS 10 (upgradable)

Compatibility: iPhone 8 or later with iOS 17 or later

Water & Durability

Water Resistance: WR50 (up to 50m)

Swimproof: Yes

Dust Resistance: ❌ (No official IP rating)

Battery: 100%