Apple Watch Ultra
Apple Watch Ultra 4
1 chip
S11 (2c CPU / c GPU)
Apple Watch Ultra 3
1 chip
S10 (2c CPU / c GPU)
Discontinued
Apple Watch Ultra 2
1 chip
S9 (2c CPU / c GPU)
Discontinued
Apple Watch Ultra
1 chip
S8 (2c CPU / c GPU)
Discontinued
Chip Comparison
| Spec | S11 | S10 | S9 | S8 |
|---|---|---|---|---|
| Current Devices |
Apple Watch Series 12 Apple Watch Ultra 4 |
Apple Watch SE 3 | – | – |
| CPU | ||||
| CPU Cores | 2 | 2 | 2 | 2 |
| Performance CPU Name | – | Sawtooth | Sawtooth | Thunder |
| Performance Core Speed (GHz) | – | – | – | 1.8 |
| CPU ISA | – | ARMv8.6-A | ARMv8.6-A | ARMv8.4-A |
| GPU | ||||
| GPU Vendor | – | Apple | Apple | Apple |
| NPU | ||||
| Neural Engine cores | 4 | 4 | 4 | – |
| Memory | ||||
| Memory type | – | LPDDR5 | LPDDR5 | LPDDR4X |
| Semiconductor Tech | ||||
| Process node (nm) | – | 4 | 4 | 7 |
| Codename | – | – | APL1W15 | – |
| Part number | – | T8310 | T8310 | T8301 |
| Release date | 2026-09-18 | 2024-09-20 | 2023-09-22 | 2022-09-16 |