R11C Smart Gesture Control Ring
- In stock, ready to ship
- Backordered, shipping soon
- Free worldwide shipping
The R11C Smart Gesture Control Ring combines intelligent display technology with advanced health tracking and gesture-based controls. Designed for everyday wear, it allows users to view time and health data directly on the ring while controlling phone functions through simple finger gestures.
- ✓ Built-in smart display for time and monitoring data
- ✓ Gesture control for camera, photo capture, scrolling, and app interaction
- ✓ Health tracking: heart rate, blood oxygen, blood pressure, and sleep
- ✓ Multi-sport modes including walking, running, cycling, and swimming
- ✓ Activity data tracking: steps, distance, and calorie calculation
- ✓ Stainless steel outer shell with hypoallergenic epoxy resin lining
- ✓ Lightweight design for comfortable, all-day finger wear
- ✓ IP-rated water resistance (1 ATM)
- ✓ Magnetic charging with compact charging case
Powered by a low-energy smart chip and precision sensors, the R11C delivers reliable performance while maintaining extended battery life for daily use.
Specifications:
- ✓ Model: R11C
- ✓ Launch time: 2025
- ✓ CPU: RTL8762 ESF
- ✓ Heart rate sensor: HX3918
- ✓ G-sensor: ST LIS2DOC
- ✓ Battery capacity (ring): 15 mAh (18 mAh for size 11 and above)
- ✓ Battery capacity (charging case): 200 mAh
- ✓ Battery life: 5–7 days active use, up to 15 days standby
- ✓ Waterproof rating: 1 ATM
- ✓ Product weight: 7 g
- ✓ Outer material: stainless steel shell + epoxy resin
- ✓ App: QRing
- ✓ System compatibility: Android 5.1+ / iOS 8.0+
- ✓ Charging method: magnetic charging
- ✓ Charging case size: 43 × 43 × 25 mm
ZATILLI · CUSTOMER CARE
Ring Size Guide
A considered guide to finding your perfect fit.
Finding the right ring size is an important part of choosing jewelry you'll love to wear.
Our ZATILLI Ring Size Guide will help you measure your finger and compare international ring sizes with confidence.
How to Measure Your Finger
You can determine your ring size at home using a narrow strip of paper, a piece of string, and a ruler.
Step 1 — Wrap
Gently wrap a narrow strip of paper or string around the base of the finger where you intend to wear your ring.
Step 2 — Mark
Mark the point where the two ends meet. Make sure the strip feels comfortably snug without being too tight.
Step 3 — Measure
Lay the strip flat and measure the length in millimeters. This measurement represents the approximate circumference of your finger.
Step 4 — Find Your Size
Compare your measurement with the international size chart below. If your measurement falls between two sizes, we recommend choosing the larger size.
International Ring Size Chart
Use our international conversion chart to compare European, American, British, and Japanese ring sizes.
|
Finger mm |
EU | US | UK | Japan |
Diameter mm |
|---|---|---|---|---|---|
| 47 | 47 | 4 | H 1/2 | 7 | 14.97 |
| 48 | 48 | 4 1/2 | I 1/2 | 8 | 15.29 |
| 49 | 49 | 4 3/4 | J 1/2 | 9 | 15.61 |
| 50 | 50 | 5 1/4 | K | 10 | 15.92 |
| 51 | 51 | 5 3/4 | L | 11 | 16.24 |
| 52 | 52 | 6 | L 1/2 | 12 | 16.56 |
| 53 | 53 | 6 1/4 | M 1/2 | 13 | 16.88 |
| 54 | 54 | 6 3/4 | N 1/2 | 14 | 17.20 |
| 55 | 55 | 7 1/4 | O | 15 | 17.52 |
| 56 | 56 | 7 1/2 | P | 16 | 17.83 |
| 57 | 57 | 8 | P 1/2 | 17 | 18.15 |
| 58 | 58 | 8 1/4 | Q 1/2 | 18 | 18.47 |
| 59 | 59 | 8 3/4 | R | 19 | 18.79 |
| 60 | 60 | 9 | S | 20 | 19.11 |
| 61 | 61 | 9 1/2 | S 1/2 | 21 | 19.43 |
| 62 | 62 | 10 | T 1/2 | 22 | 19.75 |
| 63 | 63 | 10 1/4 | U 1/2 | 23 | 20.06 |
| 64 | 64 | 10 3/4 | V | 24 | 20.38 |
| 65 | 65 | 11 | W | 25 | 20.70 |
| 66 | 66 | 11 1/2 | W 1/2 | 26 | 21.02 |
| 67 | 67 | 11 3/4 | X 1/2 | 27 | 21.34 |
| 68 | 68 | 12 1/4 | Z | 28 | 21.66 |
| 69 | 69 | 12 1/2 | Z 1/2 | 29 | 21.97 |
| 70 | 70 | 13 | — | 30 | 22.29 |
EU ring sizes correspond approximately to finger circumference in millimeters. International size conversions are approximate and may differ slightly between jewelry manufacturers.
Already Have a Ring?
If you already own a ring that fits comfortably, you can use it to determine your size.
Measure the Inside Diameter
Place your ring on a flat surface and use a ruler to measure the inside diameter from one inner edge to the opposite inner edge, excluding the metal band.
Compare Your Measurement
Match the diameter in millimeters with the corresponding size in our chart above.
Tips for the Perfect Fit
Measure at the Right Time
Finger size can fluctuate throughout the day. For a more accurate result, measure when your hands are at a comfortable temperature.
Consider Your Knuckle
Your ring should slide comfortably over the knuckle while sitting securely at the base of your finger.
Between Two Sizes?
If you fall between two sizes, choosing the slightly larger size is generally more comfortable.
Check Each Finger Separately
Ring sizes can vary between fingers and between your left and right hands. Always measure the finger on which you intend to wear the ring.
Need Help Choosing?
We're here to help you find the perfect fit.
If you're unsure which size to select, please contact our customer care team at info@zatilli.com or visit our Contact Us page.
ZATILLI · THOUGHTFULLY SELECTED JEWELRY
COMPLIMENTARY WORLDWIDE SHIPPING
Enjoy free worldwide shipping on every order.
Orders are carefully prepared within 1–2 business days, with estimated delivery in 5–7 business days after processing, depending on your destination.
Every order includes tracking. You’ll receive your tracking details by email as soon as your order is dispatched.
14-DAY RETURNS
We want you to feel confident with every purchase.
You may request a return within 14 days of receiving your order. Sale items are eligible for store credit where permitted by applicable law.
For full details, please visit our Return Policy.
HERE TO HELP
Have a question? Visit our FAQ page or contact us at info@zatilli.com.