Sleep
Your day starts the night before.
Get to know your nighttime habits. Follow your sleep records and how they change over time.
RYUMEN ONE
Your rhythm.
In a ring.
Sleep, activity and daily metrics. Reserve your RYUMEN ONE with launch benefits.
Pre-order · Launch 11/11
No subscription · No monthly fees · One payment
KNOW YOUR
RHYTHM.
Less noise. More you.
One ring. No monthly fees.
Your sleep, movement and trends, in one place. One payment. No subscription.
Pre-order · Launch 11/11
No subscription · No monthly fees · One payment
Always free shippingCharging case included
COMING SOON · OUR OWN APP
RYUMEN - APP. Your rhythm, with you.
We are preparing our own wellbeing app. A new way to support your daily routine, coming soon.
Your RYUMEN ONE, with our own app included. Free and subscription-free when you complete your pre-order purchase.
Discover RYUMEN - APPLifetime access included when you complete your ring purchase at the launch offer. €19.90 now · €80 later · Total: €99.90.
Activity
Follow your rhythm.
Steps, distance and daily movement. An activity record that fits into your day.
Metrics
See what changes.
Your records mean more when you see them over time.
- Heart rate
- View your records and trends.
- SpO₂
- Blood oxygen alongside your other metrics.
- Trends
- More context for your daily habits.
Design and finishes
Technology that goes with you.
Sensors on the inside. A discreet presence on the outside. Choose the finish that feels like you.
Your fit
Find your size.
From 6 to 14. Measure the inside diameter of a ring that fits comfortably and compare it with our guide before choosing.
View size guide6–14Nine sizes available
Included from day one
Charge. Store. Go.
Your charging case goes wherever your ring goes. Included with every RYUMEN ONE, along with the cable and manual.
Pre-order · Launch 11/11
No subscription · No monthly fees · One payment
Pre-order for two
Two rhythms. One connection.
Share the beginning. Choose a colour and size for each ring.
Choose my two rings−30%
on the second ring
Reserve 2 rings for €39.80 now. The second ring's 30% discount is deducted from the final balance.Before you choose
All clear.
Does it need a subscription?
No. RYUMEN ONE does not require a monthly RYUMEN fee to use the device with its compatible app.
What can I track?
Sleep, activity, heart rate and SpO₂, according to the metrics available in the compatible app.
How do I choose my size?
Sizes run from 6 to 14. Measure the inside diameter of a comfortable ring and compare it with the guide before choosing.
View size guideWhat is included with RYUMEN ONE?
The RYUMEN ONE ring, charging case, charging cable and user manual.
How does the duo offer work?
Reserve two rings for €39.80 now. The second ring's 30% discount is deducted from the final balance: total €169.83; remaining balance €130.03.
RYUMEN ONE
Your next rhythm starts here.
Pre-order · Launch 11/11
No subscription · No monthly fees · One payment