The complete guide for iOS 17 (iPhone) and WatchOS 10 Updated (Apple Watch)users. In Face ID unlocking with Mask Using Apple Watch Feature update, Several Apple Watch users reported the same error on their iPhone “Unable to communicate with apple watch” while enabling the option for Use Apple Watch to unlock iPhone when Face ID Detects a Face. Make sure your iPhone and Apple Watch are updated to iOS 17 and WatchOS 10, respectively. And Start unlocking your iPhone 15 Series, iPhone 14 Series, iPhone 13 Series, iPhone 12 Series, iPhone 11 Series, iPhone X, Phone 8(Plus), iPhone 7(Plus), iPhone 6S(6S Plus).
Follow the below troubleshooting and Successfully enable and use Apple Watch to unlock your iPhone lock screen while Face ID detects a Face and apple watch in your Wrist.
How to Setup for Use Apple Watch for Unlock iPhone While Wearing Mask [Video Guide]
Troubleshooting:- Apple Watch Toggle Won’t Enable Under Unlock with Apple Watch
iPhone 14 Pro Users Reported the issue is serious and Nothing works because internal software bug, which will fix in the next iOS 17 Update. According to Apple’s support discussion. Wait for the company to release iOS 17.1 and Check for the update on your iPhone and Apple Watch that’s available soon.
Latest update – To Fix Unable to Communicate With Apple Watch. Please update your iPhone iOS 16 from iOS 17 to fix an issue.
Re-Enable Unlock With Apple Watch [Working – Solved]
1: iPhone Settings for Enable Unlock iPhone with Apple Watch: While Mask on Face: Open Settings > Face ID & Passcode > Enter your iPhone lock screen passcode.

2: Enable “Apple Watch” Toggle under the unlock with apple watch section. if the toggle is enabled then Disable & Re-Enable it. Tap on Turn on in Popup. And try again.

Hope this fixes your issue after Update to iOS 17 or WatchOS 10 Update, Unlock with Apple Watch isn’t working. Also, check out the below steps,
1: Apple Watch is updated with the latest WatchOS 10 or later. Check from Apple Watch Settings (Press Digital Crown button and Tap on Settings Gear icon from apple watch Home screen > General > About > Version)
2: Bluetooth must be enabled on your iPhone Settings. [Settings app on iPhone > Bluetooth > Enable Bluetooth toggle, Try Again]
3: Your Apple Watch must be nearby.
4: Your Apple Watch Must be on your Wrist and Unlocked.
5: Apple Watch must be protected with passcode [Go Apple Watch Settings > Passcode > Turn Passcode On].

6: Once you set up your iPhone for This feature, Your iPhone may ask to Enter a Passcode or Face ID to Unlock With an apple watch to unlock it the very first time.
7: Try After hard Reboot your iPhone and Hard Reboot Apple Watch.
for iPhone: iPhone 7 or later, Quickly Press and Release Volume up button and Volume down button, Then only press and hold the side power button until you see the Apple logo on the screen. Now, Wait to Turn on your iPhone automatically.
For Apple Watch: Press and Hold Side Button and Digital Crown button until you see the Apple logo on the screen.
8: Toggle Airplane mode on iPhone. By Turn, On-Off Airplane mode on iPhone reset the network connection between Apple Watch and iPhone. if your apple watch might be WiFi or Cellular model.
- Swipe your finger down to open the control center on your iPhone. and Tap on the AirPlane icon and turn it off. After a wait for few seconds.
- Again Tap on the Airplane icon to disable airplane mode.
And Test again.
9: Apple Watch is connected with iPhone
- if your apple watch is connected successfully with your iPhone.
- Then, You will see the Green iPhone icon on your apple watch control center instead of the Red icon.
- Swipe up finger on Apple Watch Face > See the Phone icon is appears green or not.
10: Switch to WiFi Network. And Try to Enable this feature from the iPhone settings app.
Hope you get the important fix on iPhone Unable to Communicate with Apple watch Error. Unlock iPhone using Apple Watch when Face ID on iPhone detect mask on Face.