Domhong Smart Fitness Ring – Health & Sleep Monitor with Heart Rate, Blood Oxygen & Charging Case
14:29#Black-Set;200000369:699
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The Problem: Health Tracking That Stops the Moment You Take Your Wearable Off
The most important health data — sleep quality, resting heart rate, overnight blood oxygen levels — is recorded while you’re asleep. But most people take their smartwatch or fitness band off before bed. It’s too bulky, too uncomfortable, or simply a habit. The result is a gap in your health data precisely when it matters most: the eight hours when your body is recovering, consolidating memory, and regulating the physiological processes that determine how you feel the next day.
The Domhong Smart Fitness Ring solves this by making health tracking so unobtrusive that you genuinely forget you’re wearing it. At 3–5g and in a ring form factor, it’s light enough to sleep in comfortably, discreet enough to wear in any social context, and 5ATM waterproof so you never need to take it off for water activities. The result is continuous, uninterrupted health data — including the sleep monitoring that most wearables miss because they’re sitting on the bedside table.
Comprehensive Health Monitoring — Heart Rate, Blood Pressure, Sleep & Blood Oxygen
The ring tracks the four core health metrics: heart rate, blood pressure, sleep quality, and blood oxygen (SpO2). Sleep monitoring in a ring form factor is significantly more accurate than in a wrist-worn device because the ring stays on during sleep — giving you consistent, reliable data on sleep stages, duration, and quality rather than the incomplete picture you get from a device you take off at night.
Multiple Sport Modes — Activity Tracking Across Exercise Types
Multiple sport modes track steps, distance, and calories across a range of activities, giving you accurate activity data regardless of the exercise type. The alloy case construction is durable enough for regular exercise use, and the 5ATM waterproofing means the ring can be worn during swimming and water sports without damage.
Charging Case — Compact and Convenient
The included charging case keeps the ring charged and protected when not in use. The compact case is easy to carry and makes it simple to top up the battery throughout the day without interrupting your tracking.
5ATM Waterproof — Wear It Everywhere
5ATM waterproofing means the ring can withstand water pressure equivalent to 50 metres of depth — suitable for swimming, showering, and water sports. This is the waterproofing standard that makes a wearable genuinely wearable all day, every day, in any conditions.
Sizes & Colours
Available in ring sizes 7–13 in Black-Set and Bold-Set options. Refer to the size guide before ordering to ensure the correct fit.
Specifications
Brand: Domhong
Model: TK7
Case Material: Alloy
Weight: 3–5g
Battery: 15–20mAh
Metrics: Heart rate, blood pressure, sleep monitor, blood oxygen (SpO2)
Activity Tracking: Steps, distance, calories
Waterproof: 5ATM
Display: No screen
NFC: No
Charging: Charging case included
Certification: CE, FCC
Sizes: 7, 8, 9, 10, 11, 12, 13
Origin: Mainland China
SHIPPING TIMES AND COSTS
- FREE SHIPPING within 1 to 7 business days
We ship worldwide FREE.
When placing order, PLEASE MAKE SURE YOU ENTER YOUR FULL SHIPPING ADDRESS INCLUDING HOUSE/FLAT/BUILDING NUMBER AND CITY. This will help us to fulfill your order quickly.
We can't do NEXT DAY or SAME DAY deliveries as its unrealistic for our supply channels and logistics.
Orders typically ship within 7 business days. Delivery times vary by region but generally range from 7 to 12 business days.
Sometimes deliveries could take up to 15 to 20 business days in case of civilian unrest/ war affecting supply routes.
Once your order is shipped, you’ll receive a tracking number via email to monitor your delivery status.
