Smartwatches are getting smarter, but this time, Google is tackling another more practical issue—the battery.

At today's 2026 Google I/O Developer Conference, Google officially announced Wear OS 7. The focus of this update is on two things: longer battery life and smarter interactions.

Regarding battery life, the official data shows that upgrading from Wear OS 6 to 7 can increase battery life by up to 10%. For a device that needs to be charged every day, this improvement is truly substantial.

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On the smart side, Google has integrated Gemini Intelligence into the watch. This capability is not just about "answering questions," but rather emphasizes understanding commands, launching apps, and completing multi-step tasks—within the context of a watch, it functions more like a real assistant that helps you get things done, rather than just a voice robot that answers "What's the weather like tomorrow?" Some new watches released in 2026 will be the first to support this, but Google has not yet revealed specific device lists or more details about the features.

More interesting changes are happening in the automation experience. Wear OS 7 can serve as an entry point for cross-device tasks, allowing users to start and track some phone app automation processes directly on their wrist—for example, ordering food delivery without needing to take out your phone.

Google also launched the AppFunctions API for developers, making it easier for developers to integrate assistant capabilities like Gemini into their own applications. As an example, saying "Start recording my run" to the watch will automatically launch running tracking via Samsung Health, with no manual operation required throughout the process.

From passive response to active execution, the direction of Wear OS 7 is clear—smartwatches are not just accessories for phones, but entry points that can complete tasks independently.