Signed
watchOS 10.6.2 (21U594) is signed
Apple's signing server is signing this firmware, so you can restore or update to it now. Checked with Apple .
Signed since release, Jul 27, 2026. Apple lists it until Feb 3, 2027.
Released July 27, 2026
Download OTA 2.8 GB
From updates.cdn-apple.com (Apple). Signet never hosts files.
Restore images (IPSW) 5
| Version | Released | Status | Expires | Size | |
|---|---|---|---|---|---|
| watchOS 10.6.2 21U594 OTA | Jul 27, 2026 | Signed Signed by Apple Signed since release, Jul 27, 2026. Apple lists it until Feb 3, 2027. Apple doesn't publish signing end dates; Signet records them by checking on a schedule. | Apple's listed expiration Apple's update server (gdmf.apple.com) lists this build until February 3, 2027. Apple can stop signing it sooner, usually a week or two after the next release. | 2.8 GB | |
| watchOS 9.6.4 20U512 OTA | Jul 27, 2026 | Signed Signed by Apple Signed since release, Jul 27, 2026. Apple lists it until Feb 3, 2027. Apple doesn't publish signing end dates; Signet records them by checking on a schedule. | Apple's listed expiration Apple's update server (gdmf.apple.com) lists this build until February 3, 2027. Apple can stop signing it sooner, usually a week or two after the next release. | 2.6 GB | |
| watchOS 8.8.2 19U526 OTA | Jul 27, 2026 | Signed Signed by Apple Signed since release, Jul 27, 2026. Apple lists it until Feb 3, 2027. Apple doesn't publish signing end dates; Signet records them by checking on a schedule. | Apple's listed expiration Apple's update server (gdmf.apple.com) lists this build until February 3, 2027. Apple can stop signing it sooner, usually a week or two after the next release. | 1.9 GB | |
| watchOS 6.3.1 17U224 OTA | - | Signed Signed by Apple Signed in every check since Oct 19, 2026. Apple doesn't publish signing end dates; Signet records them by checking on a schedule. | - | 1.5 GB | |
| watchOS 5.3.10 16U711 OTA | Jul 27, 2026 | Signed Signed by Apple Signed since release, Jul 27, 2026. Apple lists it until Feb 3, 2027. Apple doesn't publish signing end dates; Signet records them by checking on a schedule. | Apple's listed expiration Apple's update server (gdmf.apple.com) lists this build until February 3, 2027. Apple can stop signing it sooner, usually a week or two after the next release. | 1.4 GB |
Over-the-air updates 4
The exact packages Apple's update server offers this device. Encrypted (.aea) packages list the key Apple publishes with them.
Specifications
- Chip
- S4 with 64-bit dual-core processor Up to 2x faster processor
- W3 Apple wireless chip
- Display
- 44mm 368 by 448 pixels
- 40mm 324 by 394 pixels
- LTPO OLED Retina display with Force Touch 1000 nits brightness
- Battery
- Built-in rechargeable lithium-ion battery Up to 18 hours
- Wireless
- Wi-Fi 802.11b/g/n 2.4GHz
- Bluetooth 5.0
- Water resistance
- Water resistant 50 meters
- Size & weight
- Stainless Steel - 40mm: 40 × 34 × 10.7 mm
- Stainless Steel - 44mm: 44 × 38 mm
- Colors
- Stainless Steel Silver
- Space Black (DLC)
- Gold (PVD)
- Aluminum Silver
- Space Gray
- GPS
Source: Apple Tech Specs