Ultrahuman releases free Emerald update with AI health coach

Ultrahuman has launched a major free software update for its smart ring ecosystem, introducing a redesigned app and a new artificial intelligence-driven "decision engine" aimed at making health data more actionable. The update, called Emerald, began rolling out globally on July 23, 2026, to users of the Ultrahuman Ring Air and Ring Pro.

The centerpiece of the update is a feature called UltraSphere, which the company describes as a first for a wearable device. Instead of presenting users with raw data, UltraSphere analyzes biometric information to provide personalized "Next Best Actions." These context-aware suggestions, of which there are more than 60, are based on a user's sleep, recovery, heart rate variability, skin temperature, stress, and movement. For users of Ultrahuman's M1 or M2 Live continuous glucose monitors, blood glucose data is also incorporated. The system further tailors recommendations by factoring in a user's location, local weather, and circadian rhythm. Examples of prompts include suggestions to get morning sunlight, wind down for sleep, or cut off caffeine intake later in the day.

A fundamental technical change accompanies the new features: all health data...