4. Conclusion<\/li>\n<\/ol>\n<\/section>\nI wrote about the Actxa Core smart ring when it was first announced, and I was genuinely excited because of a unique feature called BGEM (Blood Glucose Evaluation and Monitoring). BGEM is the world\u2019s first non-invasive, AI-powered diabetic risk assessment technology developed by Actxa, making the Core smart ring the first consumer wearable to feature this technology.<\/p>\n
Diabetic Risk Assessment Capability<\/h2>\n Prior to this, BGEM had undergone a joint study with KK Women\u2019s and Children\u2019s Hospital that\u2019s published in the Singapore Medical Journal titled, \u201cUtility of photoplethysmography in detecting elevated blood glucose among non-diabetics\u201d. There have also been other international clinical trials as well as a published scientific paper titled, \u201cAssessing Elevated Blood Glucose Levels Through Blood Glucose Evaluation and Monitoring Using Machine Learning and Wearable Photoplethysmography Sensors: Algorithm Development and Validation\u201d.<\/p>\n
BGEM makes use of the standard PPG sensor of most wearables (the active optical sensor you often see on the back of these devices) and uses Actxa\u2019s proprietary AI model to compute certain biomarkers to determine user diabetic risk<\/b>. Among the now-mature smart wearable market, BGEM was a breath of fresh air. <\/p>\n
I\u2019ve written about wearables and advancing sensor technology in past reviews, where actionable data is more important than another cryptic stat (for reference, check out my Amazfit Balance smartwatch review). BGEM provides a simple, clear result that can be acted on immediately. It is a feature that\u2019s relevant to the broadest possible audience: everyone. We\u2019re all susceptible to diabetic risks, and with early detection, a condition that can be managed and even reversible through healthy living, diet and exercise.<\/p>\n\nBGEM testing on the Actxa Core smart ring.<\/p>\n
Screenshot: HWZ<\/p>\n<\/figcaption><\/figure>\n
To start, you simply the BGEM test from the Actxa app 3 times within a 7-day window. As with any blood glucose test, it\u2019s best you do it in a fasted state, but if you\u2019re in doubt, the app provides all the necessary guidance. The test itself is simple since it\u2019s non-invasive and takes only a minute to complete. After three tests, you\u2019ll get your risk assessment results, and it\u2019ll simply tell you if you are Low or High Risk. <\/p>\n
If you\u2019re at risk, go see a doctor immediately, stick to your diet and health plan, and test regularly to keep yourself in check.<\/p>\n
Now here\u2019s the bad news. Like any medically inclined function, BGEM is deemed to require regulatory approvals, and as such, it is unfortunately not available in Singapore<\/b> when the Core smart ring was made available for purchase (late August 2025). I\u2019ve actually delayed this review for a while just to see if there are any developments, but so far, no luck. If anyone remembers when smartwatches first started to feature atrial fibrillation (AFib) through ECG readings, it took years to approve. Let\u2019s hope BGEM doesn\u2019t take that long, especially as it was developed locally with local clinical studies.<\/p>\n\nHowever, Singapore won\u2019t get this feature till it gets the appropriate regulatory approvals. It will simply be disabled in the app, and you can\u2019t choose it. As seen in our screenshots, there\u2019s no diabetic risk check or anything remotely related.<\/p>\n
Screenshot: HWZ<\/p>\n<\/figcaption><\/figure>\n
Design & Capablities<\/h2>\n So, I\u2019ve spent a good chunk of this review writing about BGEM. How about the Core ring itself? Well, it\u2019s Actxa\u2019s first smart ring, and specs-wise, it matches most of the popular ones you can buy in Singapore, like the Samsung Galaxy Ring, Ultrahuman Ring Air and RingConn Smart Ring. It is made of aerospace-grade titanium<\/b> for durability, just 2.2mm thin<\/b> and between 2.5g-3.2g in weight depending on ring size<\/b>. Now, I\u2019m not sure about the Galaxy Ring and Ultrahuman, but I\u2019ve tested the RingConn Gen 1 and Gen 2, and the Actxa Core ring is comparable in size, weight and feel. However, in terms of design, I prefer the RingConn Gen 2 as it is angular on the outside, which makes it seem thinner than it is, especially in the space between fingers if you wear multiple rings. The Actxa Core ring is fully rounded, and I find that it knocks against the ring adjacent to it. A small matter, and it is up to user preferences.<\/p>\n\nThere\u2019s a deliberate design indent on the ring to let you know where the sensor is without having to look at it.<\/p>\n
Photo: HWZ<\/p>\n<\/figcaption><\/figure>\n\nQuick comparison between the Actxa Core (on index finger), and RingConn Gen 2 (middle finger). At night, the Core\u2019s sensor light is brighter and leaks more.<\/p>\n
Photo: HWZ<\/p>\n<\/figcaption><\/figure>\n
The Actxa Core also has all the standard sensors and health monitoring we\u2019ve come to expect, including all-day heart-rate monitoring<\/b> with heart-rate variability (HRV) for stress detection<\/b>, SpO2<\/b>, VO2 Max, skin temperature variation<\/b>, and sleep stages<\/b>. It does not however feature Sleep Apnea detection like the RingConn Gen 2 or women\u2019s health and cycle detection like the Ultrahuman Ring Air. The Ultrahuman Ring also has AFib detection features too, but again, that\u2019s unavailable due to the lack of regulatory approvals.<\/p>\n\nThe Actxa Core has all the sensors expected of a modern health and activity tracker.<\/p>\n
Photo: HWZ<\/p>\n<\/figcaption><\/figure>\n
I spoke with Actxa, and they\u2019ve mentioned that some of these features such as cycle tracking are in the works and may be added in the future, but otherwise, the Core smart ring is as complete as any of its competitors for general daily health tracking.<\/p>\n
It supports a range of workouts<\/b> as well, including runs, walks, cycling, and generic workout tracking<\/b>, which basically bumps up the sensor for real-time tracking. By default, the Core (and most smart rings) operate on a periodic cycle (which can be changed in the app for more frequent scanning, though this will impact battery life). This is to be expected considering how small rings are and to conserve battery. The fact that the Core ring lasts longer than most smartwatches is already a big plus for anyone looking to just have health insights. Out of the box, I\u2019ve gotten the Core ring to last about 5 full days and nights with 1-2 workouts per week<\/b>. I can stretch it to the 6th<\/sup> day on most occasions, but I prefer to have it charged on day 5 before I go to sleep. <\/p>\n\nThe Actxa Core charging dock looks like a case, but does not have its own battery; it\u2019s just a dock and has to be plugged in to charge the ring.<\/p>\n
Photo: HWZ<\/p>\n<\/figcaption><\/figure>\n
App Experience & Stats Reporting<\/h2>\n The only thing holding the Core back is, of course, software experience, and the Actxa app isn\u2019t as comprehensive as the competition. The good thing is that it doesn\u2019t require any subscription<\/b> to activate or use any of its features, but it\u2019s quite barebones. You get a simple view of your activity and summary, and that\u2019s all most people need, but the app\u2019s not the most friendly if you\u2019re looking at deep-diving into your history. Accessing past data is not very intuitive as the dashboard forces you to manually click through every single day\u2014at least I haven\u2019t found an option to just pick a date or a calendar view. Weekly and monthly summaries are available, but you can\u2019t click into individual days from there. Workout and sleep data logs can be accessed, but they\u2019re hidden under multiple layers of sub-menus. <\/p>\n\nActxa app will give you most info at a glance, but not very intuitive if you want to jump to different dates and get quick insights or comparisons.<\/p>\n
Screenshot: HWZ<\/p>\n<\/figcaption><\/figure>\n\nWorkout data is otherwise solid.<\/p>\n
Screenshot: HWZ<\/p>\n<\/figcaption><\/figure>\n
Conclusion<\/h2>\n So, even though BGEM is not yet available in Singapore and its app can use some sprucing up, the Actxa Core ring is competent as a health tracker and comparable with the competition in terms of design, weight, battery life. <\/p>\n
The biggest plus point is that it\u2019s almost S$100 cheaper than either the Samsung Galaxy Ring, Ultrahuman Ring Air or RingConn Gen 2; all three currently retail around the S$440-450 price point. Actxa is asking for just S$349<\/b> for the Core smart ring, which makes it an incredibly attractive option, and when (not if) BGEM is finally approved for use, it will be one of the most useful personal smart health tools to have on hand\u2026or finger.<\/p>\n\nActxa Core smart ring and it\u2019s charging dock.<\/p>\n
Photo: HWZ<\/p>\n<\/figcaption><\/figure>\n
You can buy the Actxa Core smart ring on their webstore or Lazada.<\/p>\n<\/div>\n
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