Overview
- Ultrahuman rolled out the Emerald update globally on July 23, 2026, and put UltraSphere at the center of the app as a decision engine that produces more than 60 personalized “Next Best Actions” for users.
- UltraSphere combines ring biomarkers and context such as location, weather, circadian timing, and user profile to give simple, timed recommendations like “Get Light,” which tells users to seek morning sunlight to set their body clock.
- The company says the update moves core processing onto the Ring and phone so insights work offline, improves heart-rate and automatic workout detection, and adds a VO2 Max algorithm it claims is 21% more accurate after validation against CPET lab tests, though study details were not provided.
- Early hands-on testing found the redesigned UI and surfaced actions make the app easier to use, but reviewers reported limits in the Jade AI chatbot’s ability to explain some metrics and flagged remaining gaps in metric interpretability.
- The update adds import support for devices such as Apple Watch, Garmin, and WHOOP and a “train your ring” feature to align data, which could make Ultrahuman more useful for multi-device users while raising fresh questions about algorithm transparency and how on-device processing changes privacy and performance trade-offs.