R08 — Feature-packed + temperature tracking
- Temperature tracking
- Touch control
- For feature-lovers
For everyday wellness insights, not medical diagnosis or treatment.
R08
More features, more data. Includes temperature tracking and touch control.
R08 — Feature-packed + temperature tracking
More features, more data. Includes temperature tracking and touch control.
$39.99 USD · No monthly subscription
Find your size before ordering
Measure the inside diameter of a ring that fits, then compare it with the guide. Aim for a snug, comfortable fit.
| Size | Inner Diameter (mm) | Circumference (mm) |
|---|---|---|
| 7 | - | - |
| 8 | 18.3 | 57.5 |
| 9 | 19.1 | 60.0 |
| 10 | 20.0 | 62.8 |
| 11 | 20.8 | 65.4 |
| 12 | 21.6 | 67.9 |
| 13 | 22.3 | 70.0 |
Applicable sales tax shown before payment. Questions? Ask our team.
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Details & specs
Highlights
- Temperature tracking
- Touch control
- For feature-lovers
Quick specs
Battery5–7 days per charge
Temperature trackingYes
Touch controlYes
DisplayNo (LED notification only)
NFCNo
FREE Shipping
30-Day Free Returns
No subscription fees
Clear answers. Easier choices.
Is there a monthly subscription?
No. You can access your ring’s wellness insights without a monthly subscription.
How long does the battery last?
5–7 days per charge. Actual battery life varies with use.
What are the shipping and return options?
Free US shipping and 30-day free returns on website purchases. Contact us with your order number and email to start a return. Read the policy.
We’re a small independent retailer based in Georgia. Contact our team for help choosing.
Compare models
You’re viewing R08. Swipe on mobile.
| Features |
R05+
Best for: NFC + notifications
|
R11
Best for: display + touch control
|
R09+
Best for: temperature monitoring
|
Charging Case
Best for: charging on the go
|
||
|---|---|---|---|---|---|---|
| Body temperature | ||||||
| Touch control | ||||||
| Display screen | ||||||
| Health & fitness metrics | Included | Included | Included | Included | Included | |
| NFC | ||||||
| Includes charging case | Standalone |
Sizing Guide
Make sure you choose the right size (fast reference).
Measure an existing ring
Measure the inside diameter of a ring that fits the finger you’ll wear the smart ring on.
| Size | Inner Diameter (mm) | Circumference (mm) |
|---|---|---|
| 7 | - | - |
| 8 | 18.3 | 57.5 |
| 9 | 19.1 | 60.0 |
| 10 | 20.0 | 62.8 |
| 11 | 20.8 | 65.4 |
| 12 | 21.6 | 67.9 |
| 13 | 22.3 | 70.0 |
Quick tips
- If you’re between sizes, size up for comfort.
- For best sensor contact, a snug (not tight) fit works best.
- Your fingers can swell—check sizing later in the day.
R08
$49.99