Abstract: Systems, methods and non-transitory computer readable media for allowing a user to switch between watches that have been paired with a device such as a smartphone are described. In one embodiment, the watches automatically detect a removal of a first watch from a user's wrist and an attachment of a second watch to the user's wrist. Messages from the watches are transmitted to the device to allow the device to switch the active watch from the first watch to the second watch. The switch can occur while the device is in a locked state, and the device can synchronize the second watch with data received from the first watch. Other embodiments are also described.

Abstract: Systems, apparatuses, and methods are provided that can reduce problems associated with updates of various applications on various devices, including addition of new services for communicating with another device. A compatibility version (e.g., a minimum compatibility) for a first communication service on a first device can be checked against a compatibility version for communication service on a second device. A comparison of the compatibility versions can determine whether a message can be sent using the first communication service to the second device.

Abstract: Systems, methods and non-transitory computer readable media for allowing a user to switch between watches that have been paired with a device such as a smartphone are described. In one embodiment, the watches automatically detect a removal of a first watch from a user's wrist and an attachment of a second watch to the user's wrist. Messages from the watches are transmitted to the device to allow the device to switch the active watch from the first watch to the second watch. The switch can occur while the device is in a locked state, and the device can synchronize the second watch with data received from the first watch. Other embodiments are also described.

Abstract: Systems, methods and non-transitory computer readable media for allowing a user to switch between watches that have been paired with a device such as a smartphone are described. In one embodiment, the watches automatically detect a removal of a first watch from a user's wrist and an attachment of a second watch to the user's wrist. Messages from the watches are transmitted to the device to allow the device to switch the active watch from the first watch to the second watch. The switch can occur while the device is in a locked state, and the device can synchronize the second watch with data received from the first watch. Other embodiments are also described.

Abstract: Systems, methods and non-transitory computer readable media for allowing a user to switch between watches that have been paired with a device such as a smartphone are described. In one embodiment, the watches automatically detect a removal of a first watch from a user's wrist and an attachment of a second watch to the user's wrist. Messages from the watches are transmitted to the device to allow the device to switch the active watch from the first watch to the second watch. The switch can occur while the device is in a locked state, and the device can synchronize the second watch with data received from the first watch. Other embodiments are also described.

Abstract: Companion and accessory devices can be wirelessly leashed together in a manner that enables the devices to estimate their proximities to each other. One device can periodically attempt to detect a signal from the other device. For each attempt, the attempting device can store an indication of whether the signal was detected. If a number of times that the signal was undetected exceeds a threshold, then the attempting device can perform specified operations, such as alerting a user that the wireless leash was broken. As another example, one device can detect that a strength of a signal from the other device exceeds a threshold. In response, the detecting device can measure signal strengths more frequently. If the measuring device then detects that the signal strength exceeds another threshold, then the measuring device can cause specified operations to be performed, such as data synchronization between the devices or unlocking a device.

Abstract: Companion and accessory devices can be wirelessly leashed together in a manner that enables the devices to estimate their proximities to each other. One device can periodically attempt to detect a signal from the other device. For each attempt, the attempting device can store an indication of whether the signal was detected. If a number of times that the signal was undetected exceeds a threshold, then the attempting device can perform specified operations, such as alerting a user that the wireless leash was broken. As another example, one device can detect that a strength of a signal from the other device exceeds a threshold. In response, the detecting device can measure signal strengths more frequently. If the measuring device then detects that the signal strength exceeds another threshold, then the measuring device can cause specified operations to be performed, such as data synchronization between the devices or unlocking a device.

Abstract: Systems, apparatuses, and methods are provided that can reduce problems associated with updates of various applications on various devices, including addition of new services for communicating with another device. A compatibility version (e.g., a minimum compatibility) for a first communication service on a first device can be checked against a compatibility version for communication service on a second device. A comparison of the compatibility versions can determine whether a message can be sent using the first communication service to the second device.

Abstract: When a new version of a first program is to be installed on a first device, metadata supplied to that device specifies which versions of a second program stored on a second device are compatible with the new version. The first device uses this metadata to determine a compatibility classification that indicates how compatible the current version of the second program and the new version of the first program are, and transitions to a state representative of this compatibility classification. A process executing on the first device receives messages from applications executing on the first device. The process reads mappings between these applications and the message types these applications send. The process forwards an application's message to the second device if the application sends a message type allowable in the first device's state. Otherwise, the process queues that message at least until the first device transitions to a different state.

Abstract: Companion and accessory devices can be wirelessly leashed together in a manner that enables the devices to estimate their proximities to each other. One device can periodically attempt to detect a signal from the other device. For each attempt, the attempting device can store an indication of whether the signal was detected. If a number of times that the signal was undetected exceeds a threshold, then the attempting device can perform specified operations, such as alerting a user that the wireless leash was broken. As another example, one device can detect that a strength of a signal from the other device exceeds a threshold. In response, the detecting device can measure signal strengths more frequently. If the measuring device then detects that the signal strength exceeds another threshold, then the measuring device can cause specified operations to be performed, such as data synchronization between the devices or unlocking a device.

Abstract: Certain embodiments of the present invention can detect and evaluate new messages at a coordinating device to determine whether to forward the message to a wearable device. In this manner, a server can reduce a number of devices that it is to communicate a message to, while still allowing the message to be availed to multiple devices. Further, certain embodiments relate to coordinating alerts (e.g., audio or haptic alerts) to reduce redundant alerts of a single message amongst spatially clustered devices.

Abstract: Certain embodiments of the present invention can detect and evaluate new messages at a coordinating device to determine whether to forward the message to a wearable device. In this manner, a server can reduce a number of devices that it is to communicate a message to, while still allowing the message to be availed to multiple devices. Further, certain embodiments relate to coordinating alerts (e.g., audio or haptic alerts) to reduce redundant alerts of a single message amongst spatially clustered devices.