First identify whether your Apple Watch is trying to call through its paired iPhone, Wi-Fi, or cellular service. If it is disconnected from the iPhone, bring the devices close and check their connection settings; away from the iPhone, phone-number calls require supported Wi-Fi Calling or an eligible cellular plan. Low Power Mode can also affect calls when the iPhone is away.
Identify the connection route
Apple Watch can communicate with its paired iPhone over Bluetooth, use compatible Wi-Fi when the iPhone is out of range, or use cellular on a cellular-capable model with an eligible plan. Check Control Center on the watch to help identify its connection state.
| Route | What must be true | Useful check |
|---|---|---|
| Paired iPhone | The watch and iPhone are in range and connected; Wi-Fi and Bluetooth are on for the iPhone. | Check for a disconnected indicator, bring the devices close, and restart both. |
| Wi-Fi | A compatible Wi-Fi network is available. Phone-number calls require Wi-Fi Calling supported by the carrier and enabled for other devices. | Check Wi-Fi Calling on the iPhone and try another Wi-Fi network if needed. |
| Cellular | The watch is a cellular model and has an eligible plan from a supported carrier. | Check cellular status and plan details; ask the carrier if service or eligibility is unclear. |
1. Check the Apple Watch–iPhone connection
Put the Apple Watch and paired iPhone close together. On the iPhone, open Control Center and check that Airplane Mode is off and Wi-Fi and Bluetooth are on. On the watch, open Control Center with the side button and make sure Airplane Mode is off.
A green iPhone indicator means the devices are connected. A red disconnected indicator means they are not. On a cellular model, cellular status indicators can also help show whether the watch is using cellular service; a white cellular button can mean the plan is active while the watch is connected through the iPhone or Wi-Fi.
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When the devices reconnect, place a test call from the watch and call the iPhone from another phone. If calls work nearby but fail when the iPhone is away, continue with the Wi-Fi and cellular checks below.
2. If the iPhone is away, check Wi-Fi Calling or cellular
Being connected to Wi-Fi does not by itself guarantee that the watch can make phone-number calls. When the iPhone is out of range, the watch needs supported and enabled Wi-Fi Calling or, on a cellular model, an eligible activated cellular plan.
Check Wi-Fi Calling
Your carrier must support Wi-Fi Calling, and the watch must be within range of a Wi-Fi network the iPhone has connected to before. Some Wi-Fi networks may not work with the feature.
- On the iPhone, check Settings > Cellular > Wi-Fi Calling and enable Wi-Fi Calling if available.
- Make sure calling on other devices is enabled if your iPhone or carrier requires that setting.
- Reconnect the watch to a known Wi-Fi network the iPhone has used before, then test an incoming and outgoing call.
- If calls still fail, restart the iPhone, try another Wi-Fi network, and check carrier support and software updates.
FaceTime Audio may be an alternative when phone-number calls cannot be made over Wi-Fi, but it is not the same as placing a regular call to a phone number. Feature availability can vary by country or region.
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Check cellular service
Cellular calling away from the iPhone requires a cellular-capable Apple Watch and an eligible plan from a supported carrier. The iPhone and watch generally need the same carrier for setup. Some corporate, prepaid, or older plans may not be supported.
- Check the Watch app or Control Center for the cellular plan and service status.
- If plan or status details are missing, ask your carrier to verify watch-service eligibility and activation.
- Ask the carrier to check for account restrictions, service issues, or missing coverage in your location.
3. Turn off Low Power Mode while testing
When the iPhone is not nearby, Low Power Mode can turn off Wi-Fi and cellular until you open an app that needs a network connection. Incoming calls may go to voicemail, and outgoing calls may take longer to start.
Temporarily turn off Low Power Mode, connect the watch to a known Wi-Fi network or cellular service, and test again. If calls work afterward, power-saving behavior may have been affecting the watch’s connection.
4. Restart both devices
Restarting both devices is a useful next step if the watch will not connect to the iPhone or calls still fail after checking the relevant connection route.
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Restart the Apple Watch
- Take the watch off its charger; it cannot be restarted normally while charging.
- Hold the side button until the power controls appear.
- Tap the power button and drag the power-off slider.
- Wait a few seconds, then hold the side button until the Apple logo appears.
Restart the paired iPhone as well. Bring the devices close, check the connection indicators, and test incoming and outgoing calls.
Use a force restart only when necessary
If the watch is frozen or will not shut down normally, hold the side button and Digital Crown together for at least 10 seconds, until the Apple logo appears. Do not use a force restart as the first step for an ordinary connection problem.
5. Update the iPhone and Apple Watch
Check for software updates on both devices. After updating, check the connection indicators and repeat the call test. Updates may help with software problems but cannot make an unsupported carrier, plan, or Wi-Fi network compatible.
6. Unpair and pair the watch again
If the watch still cannot connect to the iPhone after checking the radios and restarting both devices, unpairing and pairing again is a later-stage option.
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- Keep the iPhone and Apple Watch close together.
- Open the Watch app on the iPhone and go to My Watch > All Watches.
- Tap the information button next to the watch, choose Unpair Apple Watch, and follow the prompts.
- Pair the watch again and restore from its backup if offered.
- Check the cellular plan and status, if applicable, and test calls.
If cellular activation or plan details are missing after pairing, contact the carrier.
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| What you see | Who should help |
|---|---|
| Cellular cannot be activated, or plan or status details are missing | Your mobile carrier |
| Wi-Fi Calling is unavailable or does not work on a compatible network | Your mobile carrier first |
| The watch will not reconnect beside the iPhone after restarting and checking settings | Apple Support |
| The watch remains unresponsive or will not turn on | Apple Support |
When contacting support, note whether incoming calls, outgoing calls, or both fail; whether the iPhone was nearby; which connection indicator appeared; the watch model; and whether Wi-Fi Calling or cellular service was active.
Quick checklist
- Bring the iPhone and watch together and check the connection indicator.
- Turn off Airplane Mode and confirm Wi-Fi and Bluetooth are on for the iPhone.
- If the iPhone is away, verify Wi-Fi Calling or cellular eligibility and activation.
- Turn off Low Power Mode while testing.
- Restart both devices and check for software updates.
- Unpair and pair again only if simpler connection checks fail.
- Contact the carrier about plan eligibility, activation, or Wi-Fi Calling; contact Apple if the watch remains disconnected or unresponsive.
FAQ
Why can my Apple Watch call only when my iPhone is nearby?
When the iPhone is away, the watch needs supported Wi-Fi Calling on a Wi-Fi network the iPhone has previously joined, or an activated cellular plan on a cellular-capable model. Check those settings and your carrier’s support.
How do I know whether my Apple Watch is connected to my iPhone?
Open Control Center on the watch with the side button. A green iPhone indicator means the devices are connected; a red disconnected indicator means they are not.
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Can my Apple Watch make phone-number calls over Wi-Fi?
It can when Wi-Fi Calling is supported by the carrier and enabled for other devices, and the watch is within range of a Wi-Fi network the iPhone has connected to before. Wi-Fi access alone does not guarantee phone-number calling.
Can Low Power Mode affect Apple Watch calls?
Yes. When the iPhone is not nearby, Low Power Mode can turn off Wi-Fi and cellular until an app needs a network connection. Incoming calls may go to voicemail and outgoing calls may take longer.
The Bottom Line
Compare calls with the iPhone nearby and away to narrow down the cause. If calls fail nearby, check the connection and restart both devices; if they fail only away from the iPhone, check Wi-Fi Calling, cellular activation and eligibility, and Low Power Mode.
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