• EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
  • EVOFIEL Ring One
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EVOFIEL Ring One

$284.00 USD
$433.00 USD
Material
Color
Size
If the size is not right, you can exchange it free of charge.
If the size is not right, you can exchange it free of charge.
Quantity
Product Highlights
Frequently Asked Questions

  • Free worldwide shipping, with delivery in 3–15 days.

  • Free returns and exchanges within 14 days, no reason required.

  • 2-Year Warranty

  • No subscription fees, with data stored locally to help protect your privacy.

Transforms precision science into a warm, tactile experience.

EVOFIEL is designed to capture subtle body signals reliably throughout daily life. It turns your health data into clear insights, so you can make better-informed decisions.

Material & Craftsmanship

Enduring strength,
skin-friendly premium ceramic.

Ring One is made from microcrystalline zirconia ceramic and polished for up to 300 hours for strong scratch resistance. Inside, mirror-polished austenitic 316L stainless steel, medical grade, provides an especially comfortable feel on the skin.

2,5mm exceptionally slim
5,2g comfortably lightweight
Sensors & Intelligence

A core built on sensing,
designed for interaction.

Everything is seamlessly integrated. A system of more than 15 high-precision sensors captures data from your body’s signals. At the same time, the signature horizontal groove on the outer surface gives you a new level of control: swipe or tap multiple times to manage functions discreetly.

✦ 15+ high-precision sensors
✦ Magic Touch – discreet gesture control
✦ 5ATM water resistance
Intelligence in Everyday Use

Minimalism at your fingertips,
almost limitless within.

Ring One is more than sensing — it helps you organise your digital daily life with greater ease. From sleep insights to discreet gesture control, its features work together in one intuitive experience.

Made for Everyday Life

What matters here and now
should not depend on details.

Made to stay with you throughout the day. From your morning routine to demanding workouts, Ring One continues to capture data, even in the small moments of everyday life.

✦ Skin-friendly materials for lasting comfort
✦ 5ATM water resistance for daily wear
✦ Discreet intelligence that stays with you through the day
Data Sovereignty

Your life
should not be monitored.

We focus on what matters in health data. Ring One uses 100% local storage: your body’s signals are not sent to the cloud, but stay on your smartphone. We do not own your data and have no access to it.

✦ Reduces the risk of cloud-based access
✦ Uninstall the app to remove data from your device
✦ You stay in control of your digital privacy
EVOFIEL Data Sanctuary
Universal Connectivity

Seamless connection,
freedom without limits.

Insights should not depend on your ecosystem. The EVOFIEL app is designed for both iOS and Android.

Full support for iOS & Android The EVOFIEL app is optimised for both systems and runs smoothly on your smartphone.
Integration with health ecosystems If you choose, you can sync steps, distance, and activity data with Apple Health or Health Connect.
✦ All app features are free to use, with no time limit
EVOFIEL Connectivity Intelligence
EVOFIEL Technical Specifications – Tech Pro

Technical Specifications

Sensors and Performance

Optical sensing system Multi-channel array of infrared and green LEDs. Designed to capture heart rate, heart rate variability (HRV), and blood oxygen saturation around the clock.
Temperature sensor Research-grade NTC thermistor that continuously captures small changes in skin surface temperature, with millisecond-level resolution.
Motion sensing system Highly sensitive 3-axis accelerometer with AI-assisted tracking for daily activity, steps, and manually started workouts.

Smart Interaction

Capacitive gesture control The outer ring features a highly sensitive capacitive touch matrix. Supports multi-directional gestures for swiping, browsing, media control, and remote shutter functions, with response that feels immediate.
Wideband haptic motor Integrated ultra-compact wideband LRA motor. Provides multi-level vibration feedback and supports SOS, notable heart rate alerts, and silent wake-up.

Dimensions and Weight

Physical dimensions Width: 7.5 mm | Thickness: 2.5 mm.
Lightweight design Approximately 5.2 g, depending on size, designed for comfortable all-day wear.
Sizes US sizes #6–#13.

Materials and Everyday Durability

Precision construction The outer ring is made from hard zirconia ceramic, designed to resist scratches and everyday wear. The inner ring is made from austenitic 316L stainless steel for strength and skin-friendly comfort during extended wear.
Inner profile for improved signal quality The inner ring is polished to a high gloss to reduce light scattering. This improves wearing comfort and may enhance optical signal reflection by up to 30% for more stable readings.
5ATM water resistance Industry-grade sealing, tested for water pressure equivalent to 50 m. Suitable for swimming, snorkelling, and everyday contact with water.

Battery and Runtime

Long battery life Integrated 20 mAh lithium-polymer battery. Typical use: 4–6 days per charge, with up to 25 days in deep standby.
Charging case Included portable charging case, capable of charging the ring up to 20 times when fully charged.
Fast charging Efficient magnetic fast charging, fully charged in approximately 90 minutes.

Mobile Ecosystem and Services

Wireless connection Bluetooth 5.4 with low energy consumption, with support for OTA updates.
Cross-platform support Supports iOS 9.0+ and Android 5.0+ for a consistent and smooth experience.
Data sovereignty All advanced analysis features in the app are free to use, with no subscription or monthly fees.

Global Language Support

View 30+ supported system languages
EnglishDeutsch FrançaisEspañol ItalianoРусский PolskiPortuguês SvenskaSuomi NederlandsČeština HrvatskiMagyar RomânăSrpski БългарскиΕλληνικά 简体中文繁体中文 日本語한국인 ไทยTiếng Việt Melayuবাংলা Filipinoعربي فارسیTürk Latinus
© 2026 EVOFIEL

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