Now accepting priority access · 3 new rings
Meet Ondu Firefly, Fearless Star and Fearless Pro — three titanium smart rings, one clinical-grade platform. Voice AI, fall detection, SOS and full health tracking.
The lineup · Lookbook 2026
Every Ondu ring shares the same clinical-grade foundation. Choose the one that fits the life you live.
A voice-AI smart ring. Whisper a thought, capture a reminder, ask anything — your assistant lives on your finger.
Voice AI assistant — On-device wake word — Mic + haptic feedback — For founders, creators & power users
A discreet SOS button for personal safety paired with full cycle tracking. Confidence built into every day.
Dedicated SOS button — Cycle & ovulation tracking — Stress & recovery insights — For women & lone workers
Designed for elderly loved ones. Automatic fall detection and one-squeeze SOS — protection that looks like jewellery.
AI fall detection — Discreet SOS squeeze — Caregiver alerts & live location — For seniors & their families
No. 01 · Voice AI smart ring
Catch every thought, the way you’d catch a firefly.
Reserve Firefly →No. 02 · Safety meets wellness
Confidence built into every day.
Reserve Fearless Pro →No. 03 · Peace of mind
Protection that looks like jewellery.
Reserve Fearless Star →Priority access
Priority list members get a discount, founder pricing, and a private onboarding call with our clinical team.
You're on the list.
Welcome to the first batch