R01 Smart Ring
Sleep, Heart Rate & Blood Oxygen TrackerR01 Smart Ring - Sleep, Heart Rate & Blood Oxygen Tracker
Color Black
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Refund/reship guarantee. Estimated delivery 2 to 4 weeks.
Details
Details
No screen. No notifications. The R01 is a black ring, 6.8mm wide and 2.6mm thin, that keeps a quiet record of how you sleep and move.
What it tracks
- Sleep: deep, light, and REM stages, with an overall sleep score.
- Heart rate: continuous monitoring, day and night, with alerts.
- Blood oxygen: SpO2, measured in real time.
- Stress: derived from heart rate variability.
- Activity: steps, distance, calories, and multiple sport modes.
Day to day
- Water resistant to 5ATM, safe for swimming, handwashing, and daily wear.
- 4 to 6 days of battery in typical use, recharged in its magnetic case.
- Gestures to scroll TikTok, skip a song, or release the camera shutter.
- Pairs with the JRing app on iOS 10 or later and Android 5 or later.
Specifications
| Color | Black |
| Width | 6.8mm |
| Thickness | 2.6mm |
| Water resistance | 5ATM |
| Battery | 4 to 6 days, typical use |
| Charging | Magnetic charging case |
| Connectivity | Bluetooth 5.3 |
| App | JRing, iOS 10+ and Android 5+ |
| Chipset | Bluetrum AB2026 |
| Sizes | US 7 to 13 |
In the box
R01 smart ring, magnetic charging case, charging cable, and user manual.
Sizing
Sizing
Measure the inner diameter of a ring that fits you well. Or wrap a strip of paper around your finger, mark where the ends meet, and measure the length: that is your circumference. Match either measurement to the table below.
| US size | Inner diameter | Circumference |
|---|---|---|
| 7 | 17.3mm | 54.4mm |
| 8 | 18.2mm | 57.2mm |
| 9 | 19.0mm | 59.7mm |
| 10 | 19.8mm | 62.1mm |
| 11 | 20.6mm | 64.6mm |
| 12 | 21.4mm | 67.2mm |
| 13 | 22.2mm | 69.7mm |
Shipping
Shipping
Free shipping within the United States. Orders are processed in an estimated 2 to 4 business days and delivered an estimated 8 to 15 business days after they ship.
Refund/reship guarantee
Refund/reship guarantee
If your order arrives damaged or defective, or does not arrive, we will refund or reship the affected items. Contact us within 30 days of delivery, or within 30 days after the latest estimated delivery date for an order that never arrives.
