Specifications
16 details in 4 sections — scan the left column to find one.
| Battery life | 5 to 8 days per charge |
|---|---|
| Charging time | 20 to 80 minutes to full |
| Charging accessories | Size-specific charger with a USB-C cable in the box |
| Body material | Non-allergenic titanium on both inner and outer surfaces |
|---|---|
| Dimensions | 7.90 mm wide and 2.88 mm thick |
| Weight | 3.3 g to 5.2 g depending on size |
| Size options | Sizes 4 to 15 |
| Body oxygen tracking | Red and infrared LEDs measure blood oxygen |
| Body vitals tracked | Green and infrared LEDs track heart rate and heart-rate variability continuously |
| Body temperature tracking | Digital temperature sensing for night-time trends |
| Body motion tracking | Accelerometer records movement and activity around the clock |
| Water resistance | Water resistant to 100 m |
| Membership service | Oura Membership subscription required for sleep, activity and stress insights |
|---|---|
| Warranty | Manufacturer 12 months |
| Bluetooth connectivity | Bluetooth Low Energy to the Oura app on iOS and Android |
|---|---|
| Box | OEM original packaging |
In the box
- Device
- Charger
- Documentation
Editors' picks
Hand-picked by our team.
From order to doorstep
The same six steps.
- 01 / 06
Order placed
You submit this upgrade and your trade-in details. It's free — no card up front.
- 02 / 06
Visit scheduled
You pick a doorstep slot. An agent is on the way, typically within 24–48h.
- 03 / 06
Verified on-site
The agent inspects your old device and confirms a value with you in person.
- 04 / 06
Payment confirmed
We email a Razorpay link for the exact difference — nothing more. Payment is only ever confirmed via Razorpay’s verified webhook.
- 05 / 06
Procuring
We source your new device once payment is confirmed.
- 06 / 06
Delivered
Your new device arrives at your door, 24–48h after acceptance.
Common questions
The essentials for this device.
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