HealthWear App
HealthWear is appreciated for grouping data and allowing quick reading of trends, directly on the phone.

APPLICATION: Healthwear

The smart ring that accompanies you every day
The R635 ring is worn like jewelry, but functions as a true health assistant. It automatically takes measurements and synchronizes them with the HealthWear app, helping you better understand your lifestyle, day after day, effortlessly and without constraint.
Nordic nRF52832
512 KB Flash + 64 KB RAM
15–20 mAh
Up to 5 days depending on frequency of use
Approximately 1 hour
Magnetic charging
(USB cable included)
5ATM + IP68
External surface: stainless steel (electrolytic treatment)
Internal structure: epoxy resin
Android 9.0+ / iOS 10.0+

Instant cardiac analysis
The R635 allows you to record an ECG/EKG tracing directly from the ring in just a few seconds. The benefit: a quick reading of your heart rhythm whenever you need it, and a clear history. Everything is automatically synchronized with HealthWear .
HealthWear is appreciated for grouping data and allowing quick reading of trends, directly on the phone.
Sleep tracking is often mentioned: it helps to visualize one's nights and identify trends (quality, regularity) in the app.
Users like having multiple indicators in one place: heart rate , SpO₂ , and sleep tracking , to better understand their routine.
Many choose the R635 for the ECG/EKG function, convenient for recording a tracing when needed and keeping a history in HealthWear .


Electrode contact points
Integrated conductive zones that ensure precise contact with the skin for reliable measurement.
Sensors
High-precision internal components that continuously collect and analyze physiological data.
The R635 's outer surface is made of stainless steel with an electroplating process , tested in a 72-hour salt spray for enhanced everyday durability. The main body, made of epoxy resin , provides lightness and comfort for pleasant wear day after day.
The R635 integrates a GH3228 PPG + GPSE1602B sensor for heart rate and SpO₂ tracking, as well as an SC-7A20H motion sensor for activity and sleep monitoring. Data is synced to the HealthWear app for clear, daily viewing.
Greater peace of mind in everyday life
Two simple options that make a difference: staying connected to loved ones, and keeping your history even without syncing every day.
Remotely monitor the health data of a family member via the HealthWear app, to stay reassured wherever you are.
The R635 can store up to 7 days of data before syncing, which is handy if you don't connect the ring daily.

See at a glance if everything is okay
Oxygen under control
The ring continuously measures your blood oxygen level (SpO₂) and alerts you in case of an abnormal drop , even when you don't feel anything yet.
Clear reference ranges help you understand your values in a second: 94 to 100% normal , 90 to 93% alert , less than 90% warning . You can detect fatigue , stress , or a lack of oxygen earlier and react before it damages your health .
Activity & sleep: your routine just got simpler
The R635 automatically tracks your days and nights to help you better understand your rhythm. Everything is displayed in HealthWear , with a clear overview to easily see your trend.



Certified waterproof
The R635 is IP68 and 5ATM certified, meaning it is water and dust resistant. Suitable for everyday use: hand washing, rain, showering, and brief immersion without worry.
Remote camera control
The R635 allows you to control your smartphone's camera remotely. A single press is all it takes to trigger the shot, perfect for selfies and group photos, without having to touch your phone.
Reliable battery life for everyday use
With a 15–20 mAh battery, the R635 offers 7 to 10 days of normal use and up to 15 to 20 days in standby mode , depending on usage. Fewer charges, more peace of mind.
Key metrics, effortless — to understand your body and act at the right time.
The ring connects to the HealthWear app, available on Android and iOS .
Bijouterie & Joaillerie
Trouver l'ajustement parfait est essentiel pour votre confort et votre style. Suivez ce guide pour mesurer votre taille à domicile, avec précision et sérénité.
Utilisez une bague qui vous va déjà parfaitement
| Diamètre intérieur | Taille FR | Taille US |
|---|---|---|
| 15,3 mm | 48 | 4½ |
| 15,9 mm | 50 | 5¼ |
| 16,5 mm | 52 | 6 |
| 17,2 mm | 54 | 7 |
| 17,8 mm | 56 | 7½ |
| 18,1 mm | 57 | 8 |
| 18,5 mm | 58 | 8½ |
| 19,1 mm | 60 | 9 |
| 20,4 mm | 64 | 10 |
| 21,0 mm | 66 | 11 |
Si vous n'avez pas de bague sous la main
| Circonférence | Taille FR | Taille US |
|---|---|---|
| 50 mm | 50 | 5¼ |
| 52 mm | 52 | 6 |
| 54 mm | 54 | 7 |
| 56 mm | 56 | 7½ |
| 57 mm | 57 | 8 |
| 58 mm | 58 | 8½ |
| 60 mm | 60 | 9 |
| 64 mm | 64 | 10 |
| 66 mm | 66 | 11 |
Savoir-faire
Mesurez en fin de journée, lorsque les doigts sont légèrement plus gonflés et à leur taille réelle.
Par temps froid, les doigts peuvent être jusqu'à une demi-taille plus fins qu'à température ambiante.
Choisissez toujours la taille supérieure pour un port confortable au quotidien.
Elle est souvent légèrement plus large. Mesurez précisément le doigt exact où la bague sera portée.
Questions fréquentes