The Short Version
Ultrahuman Ring Pro reviewed: the charging case holds 45 days of backup power, but the ring remains a health tracker, not a smartwatch replacement.
Ultrahuman put its best engineering into the charging case, which holds 45 days of battery backup, a speaker, haptics, and a reset button that rescues the ring from botched software updates. The ring itself is better hardware than before, but it still cannot replace a smartwatch for notifications, apps, or on-wrist controls. Ultrahuman built a brilliant suitcase for a car that still only goes one direction.