For best performance and accuracy, wear your ring on your index or middle finger. The ring finger can also work well.
Make sure the sensors on the inner side of the ring stay on the palm side of your finger. Then make a fist while wearing the sizing ring to check comfort. If it feels too tight or presses into your skin, choose a larger size.
Fingers naturally expand and contract. Wear the sizing ring for at least 24 hours to ensure a proper fit. Note: If the ring is too tight or too loose, it may affect the accuracy of the monitoring data.
Determine the proper smart ring fit by consulting the table below. Align the interior circumference or cross
diameter of your finger with a suitable AutrefoisElf size.
We recommend employing our specialized measurement kit for maximum precision and comfort.
Opting for the correct size will guarantee steady biometric collection, smooth operation, and comfortable wear throughout the day.
| Model | Inner Diameter in | Circumference in |
|---|---|---|
| 6 | 0.64" | 1.92 - 2.00" |
| 7 | 0.68" | 2.04 - 2.14" |
| 8 | 0.71" | 2.16 - 2.24" |
| 9 | 0.74" | 2.28 - 2.36" |
| 10 | 0.77" | 2.40 - 2.44" |
| 11 | 0.81" | 2.48 - 2.55" |
| 12 | 0.84" | 2.59 - 2.63" |
| 13 | 0.87" | 2.67 - 2.75" |
| 14 | 0.92" | 2.79 - 2.91" |
To ensure the most accurate biometric readings, we recommend selecting the smaller size whenever your measurement falls between two sizes.
The AutrefoisElf smart ring accommodates all fingers and may be worn on either hand. To achieve the highest level of accuracy, we advise wearing it on the index finger.
Yes — we strongly recommend it.
Finger size naturally fluctuates due to:
· Time of day (morning vs. evening)
· Physical activity or exercise
· Temperature changes (hot or cold)
· Hydration, meals, and sleep cycles
To achieve the most accurate fit, wear your sizing ring for at least 24 consecutive hours — including during sleep and all daily activities.
That’s completely normal.
The sizing kit is produced from durable plastic, whereas the actual AutrefoisElf smart ring features a smoother interior surface. This means the final ring may slide on and off slightly more easily — even when the size matches.
For this reason, your sizing ring should feel secure and slightly snug during testing, rather than loose.
Yes — light marks are considered normal, particularly after sleep or during natural finger
swelling.
However, your sizing ring should never cause discomfort, impede circulation, or prove difficult to remove. If any of these occur, we recommend trying the next larger size.
Do not have a Sizing Kit yet? Use this at-home method as a general size reference.
Wrap a thin, non-stretch string around the finger where you plan to wear your smart ring.
Mark the point where the string overlaps. Keep the string comfortably snug, but not tight.
Lay the string flat and measure the distance between the two marks using a ruler.
Match your finger circumference with the AutrefoisElf Sizing Reference chart above.
Caricamento
