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TL;DR
- Wear OS offers a new hybrid interface that offloads more tasks to a lower-power coprocessor, rather than having the more powerful main processor handle everything.
- The new OnePlus Watch 2 uses this new hybrid interface with dual chipset architecture to deliver more than 2 days of battery life even with heavy use.
If you’re a long-time Android user, you know how the Android smartwatch experience has evolved over the years. In the early days of Wear OS (previously known as Android Wear), the experience was slow and battery draining. It’s only recently, thanks to Samsung’s work on its Galaxy Watch lineup, that Wear OS has become a practical recommendation for a wider range of users.
Wear OS is aiming for an even better experience, with Google now highlighting a new hybrid interface that Wear OS is leveraging. This hybrid interface can be seen on devices like the newly launched OnePlus Watch 2. It uses a dual chipset architecture (his Qualcomm Snapdragon W5 Gen 1 chip with BES2700 coprocessor) to deliver more than 2 days of battery life without compromising user experience. .
Google says Wear OS smartwatches with dual chipset architecture include a powerful application processor (AP, aka main processor) and a secondary low-power microcontroller unit (MCU, aka coprocessor). . The main processor handles complex tasks, while the coprocessor is used for more mundane tasks.
Wear OS’s hybrid interface enables intelligent switching between these two processors, allowing you to pause the main processor when it’s not needed to preserve battery life. Coprocessors can handle tasks such as processing health sensor data when the main processor is not being called.
OnePlus uses the APIs available through this hybrid OS interface to offload notification and call handling to the coprocessor without compromising features like quick replies. Google says even fitness tracking functionality can be offloaded to the coprocessor, and the main processor is only woken up periodically to update the app. Watch faces built through the Wear OS 4 watch face format can also be offloaded to coprocessors.
Overall, these changes to Watch OS will help app developers deliver a much more battery-efficient smartwatch experience and multi-day battery life without deviating from recommended practices. The OnePlus Watch 2 has a large battery, but we hope to see other smartwatches in the future that offer all-day battery life in a sleeker, thinner form factor.
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