Get daily guidance and timely reminders for sunlight, hydration, naps, light activity, caffeine, wind-down, and sleep timing.
Recovery Progress
See how your body is adjusting after landing. When your signals stabilize, your Jet Lag plan can fade out.
Cycle Phase Awareness
See your current cycle phase and cycle day at a glance.
Smart Predictions
See predictions that adapt to your personal cycle history over time.
Vitals Context
Connect HRV, RHR, skin temperature, sleep, and stress with how you feel.
Trusted by a Growing
Global Community
30,000+
Rings Holders
250,000+
Members
103+
Countries Reached
“Great customer service. Matches my gold jewelry and is so light I sometimes forget its on.”
CUDIS 002 Classic Ring
Gold
“I’ve bought all the colors and I love them.”
CUDIS 002 Sporty Ring
Vitality Lime
“As an introvert, social settings can be nerve-wracking. The ceramic’s fidget-like feel is a lifesaver, keeping me grounded.”
CUDIS 002 Ceramic Ring
Black
“Comfortable. Stylish. Luxurious. Best data privacy.”
CUDIS 002 Continental Ring
Orange
“Since I started wearing the CUDIS ring, I’ve become more aware of my lifestyle.”
CUDIS 002 Sporty Ring
Prime Black
“The CUDIS ring is lighter and more convenient to wear than the Apple Watch.”
CUDIS 002 Classic Ring
Silver
FAQ
Your Black Friday Questions, Answered.
Our Black Friday sale officially begins on November 1, 2026, featuring exclusive deals on selected CUDIS Smart Rings.
For a limited time, get the CUDIS 002 Ceramic for just $199 (regularly $399) and the CUDIS 002 Classic for $239 (regularly $349).
No code is needed to enjoy our advertised Black Friday prices. Simply select your ring and proceed to checkout.
Black Friday offers apply to selected products, including the CUDIS 002 Ceramic and Classic. Other models are not included in these promotions.
If you're purchasing the CUDIS 002 Ceramic, select "I don't know my size" when ordering to receive a free Sizing Kit. Once you've found your fit, log in to your CUDIS account to confirm your size before your ring ships.
Choosing a selection results in a full page refresh.
