Vilo Ring

Vilo “Dark Planet” portable charger

USB-C charging cable

Vilo Sizer Set (designer-made sizing rings)

Polishing care pad

Yes. Founder packages include a 2-year warranty and 12 to 24 months of free Membership, depending on your tier.

A multi-sensor stack built for continuous, low-power sensing:

Red and infrared LEDs read your blood-oxygen trends.

Green and infrared LEDs track heart rate and HRV.

A digital sensor follows your skin-temperature trends at night.

An ultra-low-power accelerometer senses movement, day and night.

Yes. Vilo reads your blood-oxygen trends for wellness context. It is not intended for medical diagnosis.

Your body temperature shifts in small, telling ways across a night and across a month. Read as a trend over time, rather than a single reading, it adds real context to sleep, recovery, and cycle.

Vilo senses movement and daily activity. Specific workout features may vary by app version and integrations.

Yes. Top-tier components and precision manufacturing throughout. Please don't take it apart. If you do anyway, take a moment to admire the engineering first.

Vilo works with iOS and Android.

Yes, both.

Yes. Vilo connects withApple Health and selected third-party apps, only when you choose to turn it on.

Yes. Vilo is built for a global audience. Availability, shipping, and certain integrations may vary by region. You'll see the details at checkout.

Width: about 6.5 mm
Thickness: 2.7 to 3.5 mm
Sized like a ring you'd choose to wear, not a sensor you hide.

About 5.1 to 8.1 g depending on size, close to the feel of an everyday ring.

Use the Vilo Sizer Set. Wear a sizer for at least 24 hours, including sleep, and pick the one that feels secure without pinching.

Want a more secure fit for sleep and movement? Size down.
Prefer easier removal, or your fingers swell often? Size up.
Still unsure? Message us. Fit is personal.

Yes. Vilo is made for continuous wear, especially during sleep. Breaks are fine. Trends simply read best with consistency.

Vilo is water resistant to 100 m / 328 ft. For showering, swimming, or sauna, follow the Care guidelines.

Every wearable picks up signs of life. Vilo uses durable materials and finishes, but hard contact with keys, gym equipment, or stone can leave a mark. Treat it like a favorite accessory.

Vilo is designed for skin contact, and the materials are tested carefully, inside and out. If you have known allergies or very sensitive skin, read the Materials section first, and stop wearing it if any irritation appears. When in doubt, consult a clinician.

Heart-rate trends, HRV, temperature trends, blood-oxygen trends, and motion. Signal OS turns these signals into clear reads on your sleep, recovery, and daily energy.

Because you're not a spreadsheet. Sleep, stress, travel, meals, caffeine, exercise, and cycle all move your signals. Vilo focuses on trends, so you can tell what's stable from what's just a day.

Always. You set the frequency, the depth, and the categories you want to hear about. Quiet is the default. Turning it up is your choice.

Yes, within limits. Vilo stores your data and syncs when your phone reconnects. Some real-time features need your phone close by.

Up to 14 days depending on use and settings. Most days of regular use will still see 7 or more. Like any rechargeable device, capacity eases gently over time.

A full charge usually takes 20–80 minutes, depending on the starting level.

No. Vilo is built around long-term rhythm. A short charge won't break your story.

Membership unlocks the deeper side of Signal OS: more personalization, more context, and guidance that sharpens the longer you wear the ring.

$10/month.

Yes. Pre-order by late October 2026 and you'll receive 12–24 months of Membership included, depending on your tier. That's $120 to $240 in value.

Core tracking, key summaries, and the essential trends.

Deeper analysis and richer context, including:

- Long-term rhythm and pattern reads

- A personalized insight style (short or detailed, your focus areas)

- Expanded sleep and recovery views

- Cycle-aware context, where supported

- Optional gentle nudges, never pressure

- Weekly and monthly summaries

- Selected integrations, where available

Yes, in your account settings. It stays active through the end of the current billing period.

Your data stays yours. You keep the core features. Membership-only features pause until you return.

Yes. Standard orders include a 30-day free trial.

Early supporters get 60 days, limited and one time, because rhythm and trends take time to read.

On the delivery date shown by the carrier, so your days are real days with the ring, not days lost in transit.

Start a return request within your trial window, then send the ring back following our instructions. Please include everything from your order: ring, charger, cable, care pad, and sizers. Your refund is processed after inspection. Full details live on the Support page.

Not directly, for now. If you need a different size, return your original order within the window and place a new one for the right fit.

A 1-year limited warranty from the delivery date. Founder tiers extend this to 2 years.

Manufacturing defects and hardware failures under normal use, such as charging issues or sensor faults.

Normal wear, cosmetic change, accidental damage, misuse, unauthorized repair or modification, loss or theft, and water damage outside supported use.

Contact Support with your order number and a short description, plus photos or video if helpful. We may ask for a quick in-app diagnostic. If confirmed, we'll repair or replace under the warranty terms.

You. Your most personal signals, including sleep, heart, and cycle, stay yours. We don't sell your data, and we don't trade it to advertisers.

Yes, in transit and at rest, and tied to your account rather than your name on a list somewhere.

Anytime, from the app or through Support. We verify your identity first, then it's yours to keep or erase.

No. Cycle data is among the most sensitive a person carries, and we treat it that way: never sold, never shared with advertisers, fully yours to delete.

Email support@vilo.co, or reach us through the Support page. If it's about an order, include your order number so we can move faster.