Six sensors.
No subscription.
$5 to reserve.
Medical-grade temperature, heart rate, SpO2, sleep staging, snore detection, and NFC.
Disappears on your finger.
Never stops watching.
Know what happened
while you were out
Full sleep staging from HRV, movement, and skin temperature. Deep, REM, light. Plus a microphone that catches what you can't hear yourself do.
What sits against
your skin
Every sensor chosen for finger placement -- where arterial signal is strongest and motion artifact is lowest.
Green + IR PPG for continuous optical heart rate and blood oxygen
Medical-grade ±0.1°C accuracy for basal body and fever tracking
Accelerometer + gyroscope with on-chip ML core for step counting
Snore detection, cough events, and ambient noise monitoring
Low-power wireless with tap-to-share NFC tag emulation
Precision fuel gauge for the 17 mAh LiPo cell
Wear it like you
mean to forget it
Brushed titanium. 2.4mm thin. Under 3 grams. No charging anxiety -- drop it on the magnetic dock before bed, wake up fully charged.
Drop it.
Done.
Magnetic alignment. No cables to plug in, no cradle to fuss with. The dock charges the 17 mAh cell in under an hour. Small enough to live on your nightstand permanently.
How it stacks up
| Adola | Oura 4 | Galaxy Ring | Ultrahuman | |
|---|---|---|---|---|
| Price | $79.99 | $299+ | $399+ | $349+ |
| Subscription | None | $5.99/mo | None | None |
| Heart rate | Yes | Yes | Yes | Yes |
| SpO2 | Yes | Yes | Yes | No |
| Skin temperature | ±0.1°C | ±0.1°C | Yes | Yes |
| Microphone | Yes | No | No | No |
| NFC | Yes | No | Yes | No |
| 6-axis IMU | Yes | Yes | Yes | Yes |
| Weight | ~3 g | 4-6 g | 2.9-3.0 g | ~3 g |
| Thickness | 2.4 mm | 2.55 mm | 2.6 mm | 2.4 mm |
| Battery life | 5-7 days | 5-7 days | ~7 days | 4-6 days |
| Material | Titanium | Titanium | Titanium | Tungsten |
| Water resistance | IP67 | 100m | 10ATM | 100m |
| Charging | Magnetic | Cradle | Case | Cradle |
$79.99$5
Fully refundable deposit
Ships Q3 2026 · First 100 backers get early firmware access
Reserve yours