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Black smart ring with a smooth matte finish, shown at an angle to reveal the slim profile and inner sensor array

HTC Smart Ring R11M Black Large wearable technology

SKU CH-T67V-JWGMX

A slim ring tracks heart rate, blood oxygen, blood pressure, sleep and activity with 4.0 sensors every 30 minutes and lasts up to 3 days per charge

  • ColorBlack
  • TypeSmart Watch
  • SizeLarge
  • CameraActivity Tracker
  • Display TechnologyAMOLED
  • Storage Expansion0.06 MB
  • Continuous health monitoring with 4.0 sensors measuring heart rate, blood oxygen and blood pressure every 30 min
  • Automatic sleep analysis recording deep and light sleep duration, eye movement and wakefulness via the companion app
  • Eight sports modes including running, cycling, yoga and golf tracking route, time, steps, heart rate and calories
  • Slim 2 mm profile with polished inner surface for comfort during exercise and daily wear
  • IP68 waterproof rating plus 3‑5 day battery life from a 1‑2 hour charge for Android 5.0+ and iOS 9.0+

Health monitoring and sizing

This HTC Smart Ring R11M in Black Large is a wearable activity tracker for adults who want continuous heart rate, blood oxygen and blood pressure readings every 30 minutes plus automatic sleep-stage analysis. It targets users comfortable with a ring form factor rather than a wrist band. Buyers who need on-device GPS mapping or a display for real-time workout metrics are not served by this product.

Compatibility and fit check

Verify your phone runs Android 5.0 or iOS 9.0 and supports Bluetooth pairing before ordering. Use the supplier sizing kit or measure finger circumference against the size chart to confirm the Large size fits; an incorrect fit affects sensor contact and comfort during sport. No other hardware or account prerequisites are mentioned.

App access and charging

The companion app provides workout route, duration, steps, heart rate, speed, calories and distance across eight sport modes with no subscription fee. A 1–2 hour charge delivers 3–5 days of operating and standby time. IP68 water resistance allows wear during swimming and showering without removing the ring.

Points forts

  • Continuous health monitoring with 4.0 sensors measuring heart rate, blood oxygen and blood pressure every 30 min
  • Automatic sleep analysis recording deep and light sleep duration, eye movement and wakefulness via the companion app
  • Eight sports modes including running, cycling, yoga and golf tracking route, time, steps, heart rate and calories
  • Slim 2 mm profile with polished inner surface for comfort during exercise and daily wear
  • IP68 waterproof rating plus 3‑5 day battery life from a 1‑2 hour charge for Android 5.0+ and iOS 9.0+

Caractéristiques

BrandHTC
ModelSmart Ring
Part Numberfitbit ultrahuman oura ring gen4 air
ColorBlack
TypeSmart Watch
SizeLarge
CameraActivity Tracker
Display TechnologyAMOLED
Storage Expansion0.06 MB
Wearable EC Max Card Capacity0.06 MB
ConnectivityBluetooth, bluetooth
BluetoothBluetooth
Operating Time3 days
Standby Time3 days
SpecificationActivity Tracker, Milavan, Huizhou JTLlink Technology Co., Ltd, Smart Ring, R11M, fitbit ultrahuman oura ring gen4 air
Height4.699 L x 7.5946 W x 7.5946 H centimeters
Width4.699 L x 7.5946 W x 7.5946 H centimeters
Depth4.699 L x 7.5946 W x 7.5946 H centimeters
Weight3.52 ounces

Questions sur cet article

Does the HTC Smart Ring R11M Large come with a sizing kit or must I order it separately?

The manufacturer recommends ordering the sizing kit before purchase; it is not included with the ring.

Which size should I choose for the R11M if my finger measures between the listed options?

Use the provided size chart and measure your finger circumference; the Large model fits the upper range of that chart.

What does the 3-day operating time mean for daily charging with continuous heart-rate tracking every 30 minutes?

With 4.0 sensors sampling every 30 min the ring lasts about 3 days per charge, so expect to recharge roughly twice a week.

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