Non-invasive blood glucose monitor ads are everywhere. They promise no finger pricks, instant results, and accurate blood sugar readings with just a finger clip.
As someone who’s constantly researching health gadgets (and tired of getting pricked), I decided to test two of the most aggressively marketed devices online: Zakdavi and Clinclii.
They looked high-tech. The promises were bold. But what I received — and what I experienced — told a completely different story.
Here’s my honest review of these so-called non-invasive blood sugar monitoring devices.

About Products
Zakdavi and Clinclii are both marketed as non-invasive blood glucose monitors or non-invasive blood sugar meters that work by simply clipping the device onto your finger. No needles, no sensors, no pain — just wave and go.
According to their ads, these devices use advanced infrared or laser technology to “accurately read your glucose levels through the skin.” Some of the websites even claimed FDA clearance and displayed graphs of blood sugar fluctuations, trying hard to look clinical and legit.
My experience using Non-invasive Blood Glucose Monitoring devices
After being bombarded with ads, I ordered two different non-invasive blood glucose meters and waited. They arrived after 15 days — not from the U.S. like the websites implied, but straight from China, in unbranded boxes with barely-legible English instructions.
Both looked like cheap pulse oximeters — the kind used to measure oxygen levels and heart rate — and that’s exactly what they were.
When I put them to the test, here’s what happened:
- The screen showed my pulse rate and oxygen saturation, not blood glucose.
- The so-called “glucose reading” was stuck in the same range no matter what I ate or drank.
- I tested them back-to-back after a high-carb snack and then again after fasting — no change.
- I even had someone else try it, and guess what? Same glucose number, different person.
It was clear: they weren’t detecting blood sugar at all. Just pulse and oxygen. That’s it.
These were pulse oximeters pretending to be blood glucose monitors. And they cost me way more than a basic oximeter should.
Is This a Scam?
Yes, 100%.
They are not real blood sugar monitors. They do not measure glucose levels, despite what their marketing claims. The truth is: they’re rebranded pulse oximeters, likely bought in bulk and slapped with new names to make them look like high-tech medical devices.
The websites make them look like they’re from U.S. companies, but they’re actually drop-shipped from China. There’s no FDA approval, no proper glucose sensor, and certainly no magic technology.
Worse, these same devices are being sold under dozens of different names; Biancat, and including big-sounding ones like Omron, which has nothing to do with these scam versions.
Please know: there is currently NO truly non-invasive blood glucose monitor available for home use that can replace finger pricking or interstitial fluid sensors. If you see something claiming otherwise, be extremely skeptical.
Are There Any Real Non-Invasive Blood Glucose Monitors?
This is where it gets tricky. There are some promising technologies in development, but they are not yet widely available or FDA-approved for home use.
Some names to keep an eye on:
- Know Labs – Uses radiofrequency to detect glucose through the skin. Still in testing.
- SugarBEAT by Nemaura – A patch that’s non-invasive-ish (pulls glucose from the skin), approved in Europe but not FDA-cleared yet.
- GlucoTrack – Clips to your earlobe. Approved in some countries, but not the U.S. Accuracy is still being questioned.
So yes, the future looks exciting. But for now? Don’t fall for the hype.
Best Alternatives for Blood Glucose Monitoring (That Actually Work)
Better Blood Glucose Meters You Can Actually Trust
If you’re looking for safe, accurate, and reliable blood glucose monitors, here are a few highly rated options on Amazon:
Care Touch Blood Glucose Monitoring Kit
Comes with everything you need — test strips, lancets, meter, and carrying case.
HanrayCare Blood Glucose Monitoring System
Affordable, accurate, and easy to use.
The Bottom Line
These non-invasive blood glucose monitors don’t measure blood sugar, they’re not FDA-approved, and they’re not new technology — just misleading, overpriced gadgets.
If you see a non-invasive blood glucose monitor being advertised with no finger pricking, instant results, and a huge discount? Think twice. It’s probably the same scam device recycled under a different name.
I learned my lesson the hard way, but you don’t have to.
FAQ
Do non-invasive blood sugar meters actually exist?
Not for accurate, FDA-approved home use. Some are in development, but nothing is available right now that can fully replace pricking or CGM systems.
Are Zakdavi and Clinclii real blood glucose monitors?
No. They are pulse oximeters disguised as blood sugar meters. They cannot read glucose levels.
Is there a way to monitor blood sugar without finger pricks?
Yes — through CGMs like Freestyle Libre or Dexcom, which use tiny sensors just under the skin. Not completely non-invasive, but far more convenient than traditional meters.
What are the safest alternatives?
Stick with FDA-approved tools like Libre 3, Dexcom G7, or smart meters like One Drop and Dario. Avoid anything that sounds too good to be true.