Pixel Watch March/April 2026 update rolling out for LTE models

The March 2026 software update for the Google Pixel Watch is now expanding to LTE variants, marking a significant milestone in the rollout process that began earlier in the month. Following an initial announcement made approximately four weeks prior, the update is officially available for cellular-enabled models as of March 31, 2026. This deployment brings a suite of new features and security enhancements to supported devices, including standalone emergency alerts and refined payment protocols. While the update first reached Bluetooth and Wi-Fi models, the availability for LTE variants ensures that users with cellular connectivity can access the latest improvements without relying on a paired smartphone.

Build Numbers and Deployment Details

Technical specifications for the update vary slightly depending on the connectivity configuration of the device. For Pixel Watch 2, 3 and 4 models utilizing Bluetooth and Wi-Fi, the build number is identified as CP1A.260305.014.W2. Users operating the 4G LTE variants alongside Bluetooth and Wi-Fi will receive build CP1A.260305.014.W4. Although the update is listed with an April 2026 date on Google’s official site, the build number remains identical to the version Google listed ahead of time four weeks ago. This consistency confirms that the software package matches the preview provided during the initial announcement phase.

Availability methods differ across the hardware generations. Factory and over-the-air (OTA) images for the LTE variants are now accessible on Google’s site. For users attempting to manually retrieve the update, repeatedly tapping Settings > System > System updates may pull the OTA for some devices, though this method is not working for everyone just yet. Sideloading options are available for specific models; users can sideload using the included cable on the Pixel Watch 2 and 3. However, the Pixel Watch 4 requires a debug adapter that is not widely available, limiting manual installation options for the newest hardware.

Enhanced Payment and Safety Features

A key addition to this software drop is the implementation of Express Pay on the Pixel Watch 2 and newer models. This feature saves users from having to first open the Google Wallet app before completing a transaction. To facilitate this, Google is using advanced motion algorithms that help ensure payments only succeed when you intend to pay. There are specific prerequisites for this functionality; the watch must be unlocked and Express Pay must be enabled ahead of time. This streamlines the contactless payment experience while maintaining security protocols through motion detection.

Safety capabilities have also been expanded with the introduction of standalone Earthquake alerts. Users will now receive these alerts directly on the Pixel Watch without an active connection to their smartphone, provided the device is connected via Wi-Fi or LTE. This ensures that critical safety information can reach the wearer even if their phone is not nearby, leveraging the watch’s independent connectivity options to deliver warnings.

Location-Based Security Notifications

The update introduces a Notify when left behind feature compatible with the Pixel Watch 2 and newer, as well as the Pixel 8 and newer phones. This function will trigger an alert when you leave your phone behind and go to a different location. The system is designed to avoid unnecessary notifications by analyzing proximity. Your watch will not notify you if you are still nearby, even if Bluetooth disconnects. For example, you will not get a notification when walking from your living room to your bedroom. You will get a notification only when you have significantly changed your location.

To avoid unnecessary notifications, your watch will not notify you if you’re still nearby, even if Bluetooth disconnects. For example, you will not get a notification when walking from your living room to your bedroom. You’ll get a notification only when you have significantly changed your location.

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Enabling this feature requires navigating through the companion app. Users must open the companion app, select Watch Preferences, then Security, and finally select Notify when left behind. The update allows your phone to automatically lock if the watch moves out of Bluetooth range. This reciprocal security measure can be enabled by going to Watch Preferences > Security > Lock phone when left behind. These tools provide a layered security approach for users who rely on the ecosystem integration between their wearable and smartphone.

Identity Verification and Gesture Controls

Further expanding the security and usability landscape, the update enables Identity Checks verification using the wearable. On the Pixel Watch 3 and newer, along with Pixel 8 Pro and newer models, your wearable can be used to verify Identity Checks. We see noted that A-Series phones are excluded from this specific compatibility. This integration allows the watch to serve as a trusted device for authentication processes within the Google ecosystem.

Usability improvements also include the expansion of one-handed gestures. While these gestures were introduced on the Pixel Watch 4, they are now available on the Pixel Watch 3. This brings parity to the previous generation’s hardware, allowing users to navigate interfaces without needing two hands. Pixel Watch Satellite SOS is now available in expanded regions, including Europe, Canada, Puerto Rico, Alaska, and Hawaii. This extends emergency communication capabilities to users in these specific geographic locations.

Device Compatibility and Rollout Status

support is not universal across all legacy hardware. The Pixel Watch 1 is no longer receiving updates, marking the end of the software support lifecycle for the first-generation device. Current support is focused on the Pixel Watch 2, 3, and 4. Carrier involvement is also part of the deployment; Verizon has updated its Pixel Watch pages with news of this latest build, suggesting a rollout happening on March 31, 2026. Users with LTE models who have not yet received the notification may need to check manually or wait for the carrier propagation to complete.

The rollout continues over the coming weeks, starting first with the Bluetooth and Wi-Fi configuration and then extending to the LTE capable models. This phased approach allows Google to monitor stability before pushing the software to devices with more complex cellular radios. Users are advised to ensure their companion apps are updated to access the full range of Watch Preferences and Security settings required for the new features.