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A slim rose-gold smart ring in stainless steel with black enamel, size 8, shown in its charging case

Chendssfkd R18 Smart Ring Size 8# Rose Gold 35-Day Battery IP68

SKU CH-673A-NNA01 MPN R18

A stainless-steel smart ring that continuously tracks heart rate, blood oxygen, blood pressure, sleep stages and activity, lasting 35 days per charge with IP68 waterproofing

  • Design styleSmart Ring
  • Band colorBlack/Gold/Silver
  • Gemstone colorGold
  • Size adjustment8#
  • Adjustability8#
  • Metal typeStainless Steel
  • 35-day battery life from a 20 mAh cell
  • IP68 waterproof rating for shower and swim use
  • Continuous heart rate, blood oxygen and blood pressure monitoring
  • Detailed sleep-stage analysis with weekly trend tracking
  • Lightweight 3.5 g stainless steel design for all-day comfort

Rose Gold Smart Ring Size 8

The Chendssfkd R18 is a stainless steel smart ring finished in rose gold with black enamel accents. Weighing approximately 3.5 grams, it is designed for continuous all-day wear. The ring carries an IP68 waterproof rating and delivers up to 35 days of standby time on a single charge using the portable charging case or USB cable.

Health tracking for fixed size 8

This ring suits users who want continuous heart rate, blood oxygen, blood pressure, sleep stage and activity monitoring without a subscription fee. It connects via the SmartHealth app to provide daily wellness insights and weekly sleep trend analysis. Buyers who need a different finger diameter should look elsewhere, as this model is only offered in size 8 with an 18.1 mm inner diameter and 56.9 mm circumference.

18.1 mm inner diameter fixed fit

The decisive specification is the non-adjustable size 8 fitting, which measures 18.1 mm inner diameter and 56.9 mm circumference. If your finger does not match this exact dimension, the ring will not wear securely or read sensors accurately. Verify your size with a measuring kit before purchase.

How it compares

Measured against everything we stock in Gemstone & Fashion Rings, at today’s prices. Recalculated every night.

Price $54.99
Pricier than about 55% of the 483 comparable items (median $49.99).

Specifications

Product
Brand nameChendssfkd
Model nameR18
Part numberR18
Design styleSmart Ring
Band colorBlack/Gold/Silver
Gemstone colorGold
Pattern styleSmart Ring
Pearl body colorGold
Size & build
Size adjustment8#
Metal typeStainless Steel
Diamond colorD
Main materialStainless Steel
Product shapeRound Oval
Gemstone shapeRound
Pearl shapeRound
Pearl size8.0 mm
Size or dimensions8
More details
Adjustability8#
Pearl overtoneGold

Questions about this item

How much heat or power draw does the 3.5 g ring produce during continuous 24-hour wear?

The ring weighs 3.5 g and runs for 35 days on a single charge, indicating very low power consumption and negligible heat during all-day use.

Which smartphone platform and app are required to pair with the ring's Bluetooth connectivity?

You need a phone that can install the "SmartHealth" app; the ring pairs through that app rather than the system Bluetooth menu.

Will the stainless-steel band and IP68 rating survive daily contact with an older mechanical watch or metal jewellery?

The epoxy-resin and stainless-steel construction resists scratches, and the IP68 rating protects against water during normal wear alongside other accessories.

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