Apple Watch SE
| Storage | 32GB |
| Video recording | Always-on Retina OLED LTPO display, up to 1000 nits • Ion-X glass display for aluminum cases; sapphire crystal display for stainless steel and titanium cases |
| Processor / Chip | S5 SiP with 64-bit dual-core processor; W3 wireless chip; U1 chip (Ultra Wideband) |
| Cellular and wireless | LTE and UMTS, Wi ‑ Fi and Bluetooth 5.0 |
| Sensors | Level sensor O₂ electric heart rate monitor and 3rd generation optical heart rate monitor • Heart rate too high or too low notifications |
| GPS / GNSS | GPS / GNSS, compass and altimeter always active |