- Is the R02 accurate enough for health tracking?
- It is fine for spotting trends in heart rate and SpO2, but not for medical use. Owners report readings that can drift from chest straps and watches, so compare against a known device.
- Can I wear the R02 in the shower or pool?
- It carries an IP67 rating, which covers sweat, rain and brief immersion. That is hand washing and showers, not swimming or diving.
- Does the R02 need a subscription?
- No. Core heart rate, SpO2 and fitness readings work without a paid plan, unlike the Oura Ring's subscription model.
- How does the R02 compare with the Oura Ring?
- The R02 covers heart rate, SpO2 and activity at a basic level. Oura adds more polished sleep and readiness insights and better sensor accuracy, but requires a subscription.
- Does the R02 track GPS or workouts?
- It tracks activity and fitness but has no GPS. For outdoor runs you will need to carry your phone for route data.
- How do I pick the right ring size?
- Fit matters more than with a watch because fingers swell. Order the size that fits snugly on your index or middle finger and check the sizing guidance before buying.
- Where is the R02 Smart Ring cheapest?
- At Newegg, for $57.00, as of our latest check.