Luna Band uses voice to track your health and reduce screen time

Introduced at CES 2026, the Luna Band is a wristband from Luna that logs health information by voice using an AI called LifeOS compatible with Siri, while still collecting activity and sleep data via onboard sensors; the company says it does not require a subscription, but price and availability were not announced.

Luna, the maker of the Luna Ring, introduced a new wristband called the Luna Band at CES 2026 that is designed to let users log health information by voice rather than by tapping an app. The band pairs voice input with an AI engine called LifeOS, which the company says is compatible with Siri and with popular health apps. It still uses motion and optical sensors to track activity, stress, sleep and other biometrics. The company also positions the device as capturing context you would normally have to log manually, such as mood, meals and symptoms. Key details: - The Luna Band logs health information through voice commands processed by LifeOS, an AI engine the company says works with Siri. - The device continues to collect sensor data for activity, sleep, stress and related metrics using motion and optical sensors. - Luna says LifeOS can integrate with Apple Health, Google Fit and the period-tracking app Clue and can answer health-related questions. - The company contrasts the band with other screenless trackers that still rely on apps, saying Luna aims to eliminate the need to open an app for most logging tasks. - Luna announced that the band does not require a subscription; the company has not announced price or availability. Summary: The Luna Band combines voice-driven logging with traditional wrist-based sensors to capture both context and biometric data, aiming to reduce reliance on screens and manual app input. How widely and when it will be available is undetermined at this time, and the company has not released pricing information.