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Kam Union Titanium Lightweight Smart Ring

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Kam Union Titanium Lightweight Smart Ring

Kam Union Smart Devices

Kam Union Titanium Lightweight Smart Ring

Product Code: SD-3895

Firmware updates install over the air. Nothing goes back in the post.

At about 2.5 g and 2.5 mm thick, this titanium alloy ring tracks heart rate, blood oxygen, sleep stages and five sport modes, syncs to Apple Health or WeChat Sports, and takes firmware updates through the phone.

Sections

Smart Wearable Devices

Categories

Smart Devices

Condition

New

Origin

China

Seller Type

Certified Professional Seller

CE & ISO Certified

Global Shipping

Supplier: Medigear

Built by Kam Union, the KU-SH-05-004 is a titanium alloy smart ring designed for active wearers and resale. The band is 2.5 mm thick, weighs about 2.5 g and is rated 5 ATM. It tracks heart rate and SpO2 in real time with trend readings; sleep with stages, a score, and analysis; and daily activity, with sport modes for walking, running, cycling, hiking, and golf. Gestures act as a camera shutter and TikTok control, readings sync to WeChat Sports and Apple Health, and a Dialog DA14531 chip handles the low-power Bluetooth link. Firmware updates over the air. It has no buttons, no touch surface and no screen.

Titanium alloy and over-the-air firmware are what keep this ring in service. The catalogue describes the band as high-strength and able to cope with everyday knocks, and FOTA updates install through the phone, so a group of rings can take new firmware without being collected. That only pays off as long as the manufacturer keeps publishing updates, which makes the update policy part of the purchase.

Four finishes are offered: gold, matte black, silver and gunmetal. Charging runs through one of four pod styles; the clear round case is optional, and customisation is supported, with its scope, battery life, and the app's name set out in the quotation.

Sizes 7 to 14 cover inner diameters from 17.4 mm to 23.0 mm, or 54.6 mm to 72.5 mm around, and the ring is 2.5 mm thick throughout. It is available to buyers in more than 80 countries through Medigear.uk, and the enquiry team sets out stock and lead time.

The KU-SH-05-004 suits buyers who want a light, durable ring that stays up to date. Golf clubs and pro shops can offer it for golf mode; outdoor and sports retailers can stock it for hiking and running; and gyms can issue it to members who already keep their data in Apple Health. Resellers building a private-label range can use the listed customisation, finishes and charging pod styles, and workplace wellbeing schemes can offer it to staff who opt in.

Evidence on what it reports is mixed. In a 2024 laboratory study against polysomnography, three consumer sleep trackers detected sleep with at least 95% sensitivity, supporting their nightly sleep totals. Sensitivity for individual stages ranged from 50% to 86%, so stage splits and scores are approximations. Light-based oxygen readings also carry a skin-tone caveat, and the manufacturer's own test data, shared by the enquiry team, shows how this model performs.

It is the wrong purchase for diving, monitoring heart or lung conditions, or any clinical monitoring. Battery life is the figure to see first, because the catalogue's low-power claim describes the chip, not the battery. Fleets of Android users who keep data in health platforms other than the two listed should settle sync support before ordering.

Golf clubs, retailers and employers buying through procurement routes will ask for the declaration of conformity, the app's data terms, the firmware update policy and battery shipping documents before approval. The manufacturer issues the conformity documentation those procurement routes require, and the enquiry team shares it.

Updates without collecting rings

FOTA installs new firmware through the phone. A retailer or employer with hundreds of rings in use can roll out fixes without a single unit coming back.

Titanium for daily knocks

Titanium alloy gives the band strength at very low weight, and the catalogue describes it as coping with everyday knocks. Rings that survive daily wear stay in service longer before replacement.

Ready for private label

Customisation is listed as supported, with four finishes and four charging pod styles to build a range around. A reseller can match a ring line to its own brand, with the scope set out in the quotation.

Data where wearers already keep it

Readings sync to Apple Health and WeChat Sports. Wearers see ring data beside their other health and step records, without exporting anything by hand.

Nothing to press or wear out

The design is touch-free and button-free. With no buttons to snag or accidentally switch on, the band stays smooth all the way round.

Golf and hiking modes

Sport modes cover walking, running, cycling, hiking and golf. Golfers and walkers get a dedicated record for each round or walk.

Sleep in stages, with a score

Sleep is broken into stages, scored and analysed in the app. The nightly total is the dependable part, and the score gives wearers a simple daily reference.

SpO2 trends as well as spot readings

SpO2 is shown in real time and as trend readings. Trends smooth out single odd readings, which suits wellbeing tracking over weeks.

A chipset built for low power

The Dialog DA14531 is an ultra-low-power Bluetooth 5.1 chip. It underpins the catalogue's low-power claim, with the battery figures set out in the quotation.

Titanium alloy band in four finishes

The band is titanium alloy, finished in gold, matte black, silver or gunmetal. The alloy grade meets the manufacturer's specifications.

2.5 mm and about 2.5 g

The ring is 2.5 mm thick and weighs about 2.5 g by the catalogue's figure. Each size includes a weight specification.

Touch-free, button-free design

The band has no buttons and no touch surface. Control comes from gestures and the phone app.

Heart rate monitoring

Heart rate is tracked continuously, which the catalogue calls dynamic monitoring. The readings feed daily views and the sport modes.

SpO2, real-time and trends

Blood oxygen appears as real-time readings and what the catalogue calls 7-day trends. The figures serve wellbeing tracking, never disease screening.

Sleep stages, score and analysis

Sleep is split into light and deep stages, scored, and analysed in the app. Sleep detection is more dependable than the stage split.

Activity tracking

Daily activity is tracked alongside the health readings. Sessions recorded in sport modes add their own entries.

Sport modes

The modes are walk, run, cycle, hike and golf. Each records the session as its own activity in the app.

Gestures

Gestures work the phone's camera shutter and TikTok navigation. A feature panel adds browsing and shopping to a certain extent.

WeChat Sports and Apple Health sync

Ring data syncs to WeChat Sports and Apple Health. Support for other health platforms is set out in the app documentation.

Dialog DA14531 chipset

The chip is the Dialog DA14531, an ultra-low-power Bluetooth 5.1 part now sold under Renesas. It manages the ring's link to the phone.

FOTA firmware

Firmware updates install over the air through the phone. The manufacturer's update policy sets how long the model keeps receiving them.

Customisation

Customisation is listed as supported. Its scope, minimum quantities and lead time come with the quotation.

Charging pods and optional case

Charging runs through one of four charging pod styles, and a clear round charging case is shown as optional. The quotation includes battery life and charging time.

5 ATM rating

The rating is 5 ATM, quoted as 50 m, with diving listed and a feature panel claiming more than 50 m. Wearable guidance on 5 ATM points to shallow-water swimming, with diving excluded.

Pouring-glue construction

A feature panel describes titanium alloy with pouring-glue technology, the resin fill that seals the electronics inside the band. It is part of how the ring keeps water out.

Size table

Sizes 7 to 14 run 17.4, 18.2, 19, 19.9, 20.7, 21.5, 22.3 and 23.0 mm in inner diameter. Circumferences run from 54.6 mm to 72.5 mm.

The KU-SH-05-004 suits golf clubs, outdoor and sports retailers, gyms and private-label resellers that want a light titanium ring kept current by over-the-air firmware, with data flowing into Apple Health or WeChat Sports. It suits buyers who read its sleep totals as dependable and its stage splits, scores and SpO2 trends as estimates. It does not suit diving, the monitoring of heart or lung conditions, or Android fleets tied to other health platforms. Three answers decide the order: battery life between charges, the firmware update policy, and the scope and lead time of any customisation. Medigear.uk lists the KU-SH-05-004 for business buyers worldwide and can arrange delivery, installation, commissioning, familiarisation and service cover. Ask the enquiry team for the declaration of conformity, the app's data terms and the care guidance for water use before ordering.

FAQ

Frequently Asked Questions

Everything buyers need to know about sourcing medical equipment through MediGear.

The specification lists 5 ATM (quoted as 50 m), includes diving, and one feature panel claims diving or snorkelling beyond 50 metres. Wearable makers that use the 5 ATM scale treat it as a static pressure rating suited to shallow-water swimming and rule out diving and high-speed water sports, so plan on surface swimming and leave diving out. Care guidance for hot tubs, saunas and sea water is part of the manufacturer's documentation that the enquiry team shares.

It tracks heart rate, SpO2, sleep, and activity, with SpO2 provided as real-time readings plus what the catalogue calls 7-read trends, and sleep broken into stages, a score, and an analysis. Readings sync to WeChat Sports and Apple Health, so buyers equipping Android users on other health platforms should ask the enquiry team which others the app supports.

One feature panel says the optical sensor detects blood oxygen in real time to prevent sudden heart and lung illness, which is a disease claim. MHRA judges medical device status by the purpose shown across labelling and promotion; the rest of the catalogue presents a wellness wearable, and the declaration of conformity, shared by the enquiry team, shows the route the manufacturer has taken. Heart and lung conditions require medical devices with documented accuracy, so the ring should not be used to monitor them.

In a 2024 study of three consumer sleep trackers against polysomnography, every device detected sleep with at least 95% sensitivity, while stage-by-stage sensitivity ranged from 50% to 86%. Stage splits and sleep scores therefore read as estimates. The SpO2 trends share a known weakness of light-based oxygen readings, since a 2024 UK review of equity in medical devices found pulse oximeters can read high in people with darker skin.

FOTA, short for firmware over the air, installs new ring firmware through the phone app with the ring still on the finger. The manufacturer sets how often updates appear and how long the model is supported, so the update policy belongs in the quotation before a group rollout.

Customisation is listed as supported, alongside four finishes and four charging pod styles. The quotation from the enquiry team sets out the scope of customisation, the minimum order quantity, and the lead time for custom units.

The quotation from the enquiry team carries the battery life and charging time. Charging runs through one of four pod styles, and the clear round case shown in the catalogue is an optional extra. The Dialog DA14531 chip is an ultra-low-power Bluetooth 5.1 part, which is the basis of the catalogue's low-power claim.

Sizes 7 to 14 run from 17.4 mm to 23.0 mm inner diameter, matched to circumferences from 54.6 mm to 72.5 mm. Wrap paper or string snugly around the finger, mark the overlap, measure the length in millimetres, repeat a few times and match the average to the circumference column.

The band is titanium alloy, which the catalogue describes as high-strength and able to cope with everyday knocks, and it comes in gold, matte black, silver, or gunmetal. The alloy grade and how each finish wears with daily use are in the manufacturer's specifications, which matters for rings worn every day for years.

The ring is touch-free and button-free, so gestures do the work: one acts as the phone's camera shutter, and another navigates TikTok. A feature panel adds browsing and shopping to a certain extent, wording that implies limits, so the apps that respond are set out in the app documentation from the enquiry team.

The enquiry team's quotation carries the warranty terms. For custom orders, it also sets out how warranty claims are handled for branded units.

The enquiry team passes on the manufacturer's declaration of conformity, with the certificate scope set out in the quotation. A phone-linked wearable placed on the GB market answers to the Radio Equipment Regulations 2017 and the RoHS Regulations 2012, each of which accepts UKCA or CE marking, and its disposal falls under the WEEE Regulations 2013. Conformity requirements differ by destination market, and the enquiry team shares the manufacturer's documentation for the country the unit is going to.