

Gadgets
Ondira R8 Smart Ring
Titanium, 3 g · sleep and recovery scores every morning · up to 10 days, charging case included
4.8 · 6 reviewsOrder on your country's page
The item is sold on a page in your language, at your local price. Choose the country:
Each order contains: Ring in your colour and size with a charging case (5 refills) as a gift
Cash to the courier on delivery · delivery costs nothing
Main points
- Sleep stages and two morning scores: Sleep and Recovery
- Heart rate around the clock, HRV, blood oxygen, skin temperature, stress and body energy
- 60+ sports, walking, running and cycling recognised by themselves
- Alerts on heart rate and oxygen at thresholds you choose, silent vibrating alarm
- Up to 10 days per charge, charging case with 5 refills
- Titanium, 3 g, 10 ATM
- App on Android and iPhone, no subscription
A 3-gram titanium ring that reads sixteen measures of the body day and night — sleep stages, heart rate, heart-rate variability, blood oxygen, skin temperature, breathing, stress, steps — and every morning turns the night into two scores from 0 to 100, Sleep and Recovery, with a sentence that says what happened.
Three small lights, a temperature sensor and a motion sensor sit on the inside of the finger, where the pulse signal is cleaner than at the wrist. The free app works on Android and iPhone, in Italian and in the languages of the countries we deliver to, with every function included and no subscription. One charge lasts up to ten days; the portable charging case in the box refills the ring five times. Rated 10 ATM: shower, pool and sea. It is a wellness device, not a medical one.
- Shell
- Titanium with hard coating; black, silver, gold
- Weight
- About 3 g (size 9)
- Sizes
- 6 to 13 (finger 52 to 69.5 mm)
- Sensors
- Optical (green, red, infrared), skin temperature, 3-axis motion
- Battery
- Up to 10 days; charging case with 5 refills, about 1 h per charge
- Water resistance
- 10 ATM (100 m)
- App
- Android and iOS, Bluetooth; no subscription
- In the box
- Ring, charging case, USB-C cable, sizing strip, instructions
Reviews of this item
4.8 average · 6 reviews
Hannah W.
I wanted to know why I wake up tired. Three weeks in, the ring showed my deep sleep collapses on the nights I eat late. Small change, much better mornings.
Nextronika replied
Thank you Hannah, that is exactly what the morning scores are for.
Ricardo M.
Wear it in the pool and the sea, never take it off. The charging case is great on holiday.
Nextronika replied
Good holidays, Ricardo!
S. Popa
Gold version looks like a normal ring, people do not notice it. Cycle prediction has been right two months in a row.
tomasz
bought it instead of a whoop because of the subscription. recovery score works the same way for my training, battery about 9 days
Lena Kraus
Very comfortable, I forget I am wearing it. One star less only because I picked size 8 and should have measured with the paper strip first; size 9 now fits well.
Nextronika replied
Thanks Lena, the paper strip in the box saves exactly that.
Ivana P.
Bought it for my father so he can keep an eye on his heart rate at night. He reads one number in the morning and that is all he needs.
Nextronika replied
Thank you Ivana, best wishes to your father.



