Apple Watch connectivity depends on built-in Wi-Fi, pairing with a nearby iPhone, and in some models a cellular network data plan. What happens when Apple Watch goes offline?
The Apple Watch can perform many functions offline, if the device becomes disconnected from wireless internet access or your iPhone is not available. Here is a list of what Apple Watch can do offline:
When the orange mask icon appears on Apple Watch, the device is in Theater Mode.
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Apple Watch owners having firmware problems can now try recovering their wearable device directly from an iPhone. This wireless method, while not foolproof, can avoid a trip to Apple for service. If your Apple Watch freezes up, crashes during the update process, or stops working, it may prompt you to initiate a restore. To use this feature, the iPhone requires iOS 15.4 or later and the Apple Watch must be running watchOS 8.5 or later.
According to Apple Support:
The Apple Watch Series 3 and later offer a model with cellular data connectivity. This reduces the need for Apple Watch to rely on a nearby paired iPhone or Wi-Fi network to make calls and send messages. GPS + Cellular models feature a red ring on the Digital Crown to indicate cellular capabilities.
