Released September 2025 with the largest display of any Apple Watch and 5G plus satellite messaging built in — like every Ultra before it, there's no GPS-only variant, so every unit ships with cellular hardware, making its titanium case and sapphire screen the most specialized repair in the current lineup.
| Chip | Apple S10 (dual-core, 64-bit) |
| Case size | 49mm titanium |
| Connectivity | Built-in GPS + 5G Cellular (always fitted), Wi-Fi + Bluetooth |
| Cellular | eSIM (standard on every unit), satellite messaging |
| Display | Largest Apple Watch screen to date |