The reason your blood sugar spiked is because you hadn't eaten anything for a long time. Your body will convert fat into glucose. That's why diabetics will eat several small meals a day to keep their blood sugar levels in check. I am going to get one of these watches just to monitor the fluctuations not necessarily for the numbers. Thanks this was very helpful
Fasting of any duration doesn't cause "spikes". It causes rises after any activity that requires more energy than can be supplied by circulating glucose. There's a limited amount of glycogen that the liver can quickly convert glucose. Because that delivery doesn't match a sustained need, the effect is weakness, tiredness, lack of energy. It's why most sports drinks contain a form of sugar and a stimulant, why endurance athletes eat meals with more protein that take longer to digest.
having accurate blood glucose monitoring from a watch will be one of the biggest medical breakthroughs, as long as people can create proper apps to go along with it to help them manage their diet, exercise and eating habits.
everybody is looking for accuracy , even the traditional glucometer is not accurate , its about 15% error margin and CGM with sensors are 20% error margin , so the watch is the same , you have to go by feeling . But one thing i discovered , if you wear the watch the usual way it will be less accurate but if you wear it the opposite side of your wrist , the data recorded is closer to the traditional CGM. The lighter the skin , the more accurate it is . Just my 2 cents
Great review, thanks for comparing it to a standard glucose monitor, that helps those of us who have been looking at these form a better assessment, That rise you observed around lunch time when you did not consume any food is a bit concerning and makes you wonder if it is guessing based on a normal eating pattern. The rise in the morning while only consuming coffee could be what is called Dawn Effect where your body spikes your glucose after you wake up. Good work.
Thank you. And I avoid eating foods with sugars and/or grains when I do eat so even when I eat a meal I don't expect huge glucose spikes. If I do slip into dietary ketosis I still wouldn't expect ketone bodies to be measured as blood sugar, so that spike is very concerning and confusing.
He had a 6 hour drive without food and I would say that he could have a blood sugar spike from the liver producing sugar for biological survival. So it is an accurate blood glucose monitor.
Did you compare with a blood glucose meter to confirm the data in your clock? Why did you not compare both in different situations instead of assume this position of device error?
You should test the watch on the same arm. Specifically your left arm. And then when you test your blood sugar you have to do so with the strip already in the machine and then prick your left ring finger ignoring the first drop of blood and applying the second drop to the strip to get an accurate reading.
The blood glucose while off, was fairly consistent with this watch varying by less than 5 points. So the real question is.... is there an option to calibrate it? I'd love to see a new test after calibrating the glucose levels to see how accurate and consistent it is at that point.
@DaveTheKayaker - Great review. Loved the multiple glucose measurements. Any idea if the DeepFit app shares workout data or any data at all with Google Fit?
For glucose, you need to do more test. For example, test during fasting in the morning, the highest and the lowest. Usually those watches will show complete opposite result than the blood drop test. I have seen several review showed that.
At 13:43 when you mentioned the mysterious insulin spike, it could be from stress. When stressed you body produces cortisol (the fight or flight hormone). I recall that it breaks down into glycogen and your body uses that for energy to address your situation. You had been driving for 6 hours...might've been stress? Just my guess. Thanks for the review.
After reviewing many of these devices I am convinced they have an algorithm that tells them to show a spike around "usual" mealtimes. I now think these non-invasive glucose watches are bogus.
I like that you are comparing it to a BGM, but there are a few things to understand. 1) There is no such thing today as a FDA -approved Continuous BLOOD Glucose monitor, FDA-approved or otherwise. (Ones are under development, expected to become available in 3-4 years, and will cost $$$$. ) 2) FDA approved CGMs measure INTERSTITIAL FLUID glucose which is not the same thing. IFG lags BG and only comes close to it during prolonged rest. 3) "Real" CGMs are approved by the FDA using statistics and not point by point accuracy. They have to be statistically within +/20mg/dL of lab test results across the range from 100 to 180 mg/dL within ~15 minutes. I wear a Dexcom G6 CGM sensor 24x7 and 10% of the ones I've worn were so unresponsive and/or inaccurate that I had to replace them. Another 25% required low and high calibrations to be accurate enough to use with my insulin pump. These are expensive sensors that cost many times with the watches you're testing cost. A $300 watch form factor CGM that worked would pay for itself in 3less than 3 months. Here's how the FDA-approved Dexcoms G6 sensor is to be compared to a BGML www.dexcom.com/en-us/faqs/is-my-dexcom-sensor-accurate 4) Finger stick meters aren't much better than CGMs as far as accuracy. . The new FDA standard is +/-10% of lab tests +95% of the time over the same range. Very few field-tested BGMs are that accurate, and users are notorious for not using them properly. 5) The value of FDA-approved CGMs is for showing glucose trends, not precise values. 6) You DON'T PUT BLOOD ON BGM TEST STRIP BEFORE INSERTING IT. 7) The sports activity kcal estimates of these watches are also not reliable. (The lab test equivalent measures radiation-tagged exhaled carbon dioxide ) 8) Since you are a kayaker, it would be more informative to see how watches hold under your normal exposure to water and sweat.. ) imo, You are qualified to evaluate sports watches as timepieces under sports conditions. I haven't seen a TH-cam yet with sufficient knowledge, experience, or equipment to do meaningful testing of CGMs, ECGs, BP, SPO2 or any other medical measuring instrument.
Sure. Now that I have a blood glucose meter I'll do the finger jab in all forthcoming blood glucose smartwatch reviews. Unfortunately, I can't go back and do the comparison on many of the older reviews as I have since given many of those smartwatches away.
i have this exact watch and will say the build quality is nice the bpms are in my case consistant w my prof. blood 02 testing device so im happy w that blood glucose?? i have no way of testing mine for accuracy so i have no clue..the bpms are accurate within a point of my blood 02 pro device so happy there..and the ecg is very accurate as well..i like it it has more of a quality feel i bought it because my expensive fit bit claimed ip 68 it was not it passed away that night so i wanted something cheap but that was at as accurate i believe i found it w this watch i like it better MUCH better than my versa sorry..but that versa lasted just over one year of light duty use,,so why blow big money esp when theyre making things like this watch for 30 or 40 bucks depending on where u buy it..if y0ou were thinking about getting this watch? id say go for it its decent all the way around wont wow anyone but it works just fine at least on the items i tested against pro devices..the phone feature is great you can make and take calls on it when paired to your phone which fitbit doesnt do..so even that was a fun improvement..
I like to add that some of the watches do not allow you to set the settings, most are from UK, and not from USA. In your videos, you do not talk about changing the settings, I do see in Glucose that you are using mg/dl and not mmol/L, whic I think the watch calibrates to mmol/L, very differs to mg/dl. Are you diabetic? Why is Temp at °C is this not fixable? Talk more on settings...
13:30 driving for six hours? driving is a lot of caution, it's an intensive work for brain. I think glucose rise is needed for this. you could double check next time you drive a lot
Just from the testing perspetive there is a difference of 10 minutes between blood glucose and the glucose measured trough your skin. A CGM sensor it self is 70USD I believe that might also be worth it to improve your testing. These devices aren't where they claim to be now, how ever an imrpovement I see in testing is from at least this video is taking your bloodglucose 10 minutes ahead of the smartwatch glucose. Since the bigger companies are claiming to have this almost ready, cannot wait for your review of those.
So I don't eat or drink anything for a significant period of time before I do these reviews so the timing issue should not be an issue. I don't really want to buy a cgm to compare to things not claiming to be medical devices or accurate in any sense. Based on my strip testing I know they are not accurate. BUT if a CGM company wants to send me a device for review and comparison I'd be thrilled to do so.
Does the TK12 for incoming call does it shows caller name or just number, also, for MSM / email does it shows only subject or can have option to read the whole msm/email., thanks
I've lined up 5 glucose monitors using blood and the strips, and guess what? None of them agree with each other, varying as much at 10 points. I showed my pharmacist he was shocked, he said, "Yeah, they're not very good at they?" Thought you should know...
As far as I know those thing have 15% inaccurate margin so yeah is not that accurate but it's quite helpful for daily control although you should also do some serious regular check every month. I also recommend you to use the device shortly after they get your blood to compare between their result and your strip result to see if your device is still good.
where did you get the replacement band? i'm very allergic to the plastic thing i have no reflection on the watch band bc i'm actually even MORE allergic to my fit bit versa band which btw i replaced w this watch bc the 170 buck fit shit versa dies bc it lied about being ip 68 it was MAYBE 67 anyway the band you have looks like fabric whitch i absolutely need!! do tell tia!!
So you're obviously not a diabetic otherwise you would be concerned with that initial BG reading of only 4.6 mmol/L and not be saying "who knows what that means at this point". As a type 1 diabetic and after using the Dexcom G6 CGM, I am totally interested in the technology associated with these smart watches. Dexcom (along with other invasive CGM's), have priced themselves to the point where NO ONE can afford them, so I hope the likes of Dexcom and Abbot are starting to feel nervous about their long run of money scalping is finally coming to an end!!
I am not diabetic and share your hopes for new technology that will be able to measure blood glucose non-invasively. We are not there yet. That's why I am interested in this space. I am a very low carb athlete and primarily use ketones for energy, so low blood glucose does not concern me. Please note, dietary ketosis is *very different* from ketoacidosis which is a life-threatening condition. The fact that I am low carb is why I have an interest in this technology. I ultimately would like to know what spikes my blood glucose and what doesn't.
@@DaveTheKayaker thank you where can I get one I am blind and can’t use a meter because of other medical conditions and that sounds like it would be perfect for me. Thank you again.
Nice video sir So out 8 watches u had tested, is Xiomi TK12 watch reasonably accurate on blood glucose Also how about accuracy on heart rate variability?
I will make no claims regarding accuracy of non-invasive blood glucose measurements. I don't trust the technology. I need to stay in my line on this one...I don't give medical advice.
I buy this watch monday ,but i stil have bluetooth problem with a connect between a my phone and watch this is wery iritant of my😢, but i have Samsung Galaxy, and this is Smartwatch Xiaomi🤔
133mg is way to much for healthy people. You should ask doctor, probably, if You are fat, You have first stage of diabetic 2, if you are thick or regular, maybe is number one. After meal, ie 1hour should be under 100. No less than 80. is range of health non diabetic person.
HbA1c every three months is the best and most accurate way to measure glucose management. Even finger prick tests can be off enough to go above the upper range.
The reason your blood sugar spiked is because you hadn't eaten anything for a long time. Your body will convert fat into glucose. That's why diabetics will eat several small meals a day to keep their blood sugar levels in check. I am going to get one of these watches just to monitor the fluctuations not necessarily for the numbers. Thanks this was very helpful
Fasting of any duration doesn't cause "spikes". It causes rises after any activity that requires more energy than can be supplied by circulating glucose. There's a limited amount of glycogen that the liver can quickly convert glucose. Because that delivery doesn't match a sustained need, the effect is weakness, tiredness, lack of energy. It's why most sports drinks contain a form of sugar and a stimulant, why endurance athletes eat meals with more protein that take longer to digest.
@@psdaengr911 I agree, again is Dave a diabetic? we are, that's why the focus is on these watches. i.e. 1992 D🤠🤠
having accurate blood glucose monitoring from a watch will be one of the biggest medical breakthroughs, as long as people can create proper apps to go along with it to help them manage their diet, exercise and eating habits.
everybody is looking for accuracy , even the traditional glucometer is not accurate , its about 15% error margin and CGM with sensors are 20% error margin , so the watch is the same , you have to go by feeling . But one thing i discovered , if you wear the watch the usual way it will be less accurate but if you wear it the opposite side of your wrist , the data recorded is closer to the traditional CGM. The lighter the skin , the more accurate it is . Just my 2 cents
How do you wear it opposite
How do u wear it the opposite side?
Great review, thanks for comparing it to a standard glucose monitor, that helps those of us who have been looking at these form a better assessment, That rise you observed around lunch time when you did not consume any food is a bit concerning and makes you wonder if it is guessing based on a normal eating pattern. The rise in the morning while only consuming coffee could be what is called Dawn Effect where your body spikes your glucose after you wake up.
Good work.
Thank you. And I avoid eating foods with sugars and/or grains when I do eat so even when I eat a meal I don't expect huge glucose spikes. If I do slip into dietary ketosis I still wouldn't expect ketone bodies to be measured as blood sugar, so that spike is very concerning and confusing.
It is a good watch for observing certain health parameters !
Please read the manual. Your supposed to turn the watch so it can measure from the inside of your wrist.
He had a 6 hour drive without food and I would say that he could have a blood sugar spike from the liver producing sugar for biological survival. So it is an accurate blood glucose monitor.
Did you compare with a blood glucose meter to confirm the data in your clock? Why did you not compare both in different situations instead of assume this position of device error?
You should test the watch on the same arm. Specifically your left arm. And then when you test your blood sugar you have to do so with the strip already in the machine and then prick your left ring finger ignoring the first drop of blood and applying the second drop to the strip to get an accurate reading.
BUEN PUNTO A TENER EN CUENTA,....
The blood glucose while off, was fairly consistent with this watch varying by less than 5 points. So the real question is.... is there an option to calibrate it? I'd love to see a new test after calibrating the glucose levels to see how accurate and consistent it is at that point.
it cannot be unfortunatly
Thanks for the review. I never seen anyone put the blood on the test strip first before inserting it into the Glucose meter.
I should have read the instructions more thoroughly. But after testing it since I've learned it really doesn't make a difference.
@DaveTheKayaker - Great review. Loved the multiple glucose measurements. Any idea if the DeepFit app shares workout data or any data at all with Google Fit?
For glucose, you need to do more test. For example, test during fasting in the morning, the highest and the lowest. Usually those watches will show complete opposite result than the blood drop test. I have seen several review showed that.
How much does it cost and were do I buy
it ?
At 13:43 when you mentioned the mysterious insulin spike, it could be from stress. When stressed you body produces cortisol (the fight or flight hormone). I recall that it breaks down into glycogen and your body uses that for energy to address your situation. You had been driving for 6 hours...might've been stress? Just my guess. Thanks for the review.
After reviewing many of these devices I am convinced they have an algorithm that tells them to show a spike around "usual" mealtimes. I now think these non-invasive glucose watches are bogus.
I like that you are comparing it to a BGM, but there are a few things to understand.
1) There is no such thing today as a FDA -approved Continuous BLOOD Glucose monitor, FDA-approved or otherwise. (Ones are under development, expected to become available in 3-4 years, and will cost $$$$. )
2) FDA approved CGMs measure INTERSTITIAL FLUID glucose which is not the same thing. IFG lags BG and only comes close to it during prolonged rest.
3) "Real" CGMs are approved by the FDA using statistics and not point by point accuracy. They have to be statistically within +/20mg/dL of lab test results across the range from 100 to 180 mg/dL within ~15 minutes. I wear a Dexcom G6 CGM sensor 24x7 and 10% of the ones I've worn were so unresponsive and/or inaccurate that I had to replace them. Another 25% required low and high calibrations to be accurate enough to use with my insulin pump. These are expensive sensors that cost many times with the watches you're testing cost. A $300 watch form factor CGM that worked would pay for itself in 3less than 3 months. Here's how the FDA-approved Dexcoms G6 sensor is to be compared to a BGML www.dexcom.com/en-us/faqs/is-my-dexcom-sensor-accurate
4) Finger stick meters aren't much better than CGMs as far as accuracy. . The new FDA standard is +/-10% of lab tests +95% of the time over the same range. Very few field-tested BGMs are that accurate, and users are notorious for not using them properly.
5) The value of FDA-approved CGMs is for showing glucose trends, not precise values.
6) You DON'T PUT BLOOD ON BGM TEST STRIP BEFORE INSERTING IT.
7) The sports activity kcal estimates of these watches are also not reliable. (The lab test equivalent measures radiation-tagged exhaled carbon dioxide )
8) Since you are a kayaker, it would be more informative to see how watches hold under your normal exposure to water and sweat..
) imo, You are qualified to evaluate sports watches as timepieces under sports conditions. I haven't seen a TH-cam yet with sufficient knowledge, experience, or equipment to do meaningful testing of CGMs, ECGs, BP, SPO2 or any other medical measuring instrument.
Let me know when you find that reviewer and I will follow them.
14:35
@@DaveTheKayaker Thanx for previewing something I was interested in, just like your other vids.
Great brilliant information. I will look at the UK standards as I'm in London and they are very strict here.
Thank you for this information. These watches are FAKE and a scam!!!
Hi Dave, an excellent review. Can you do more comparisons of the watch's blood glucose reading against a traditional blood glucose meter (prick)?
Sure. Now that I have a blood glucose meter I'll do the finger jab in all forthcoming blood glucose smartwatch reviews. Unfortunately, I can't go back and do the comparison on many of the older reviews as I have since given many of those smartwatches away.
I think it would be helpful for spiking monitoring based on the foods you eat. that would be good information rather than blood glucose.
Please explain how to set the correct time?
i have this exact watch and will say the build quality is nice the bpms are in my case consistant w my prof. blood 02 testing device so im happy w that blood glucose?? i have no way of testing mine for accuracy so i have no clue..the bpms are accurate within a point of my blood 02 pro device so happy there..and the ecg is very accurate as well..i like it it has more of a quality feel i bought it because my expensive fit bit claimed ip 68 it was not it passed away that night so i wanted something cheap but that was at as accurate i believe i found it w this watch i like it better MUCH better than my versa sorry..but that versa lasted just over one year of light duty use,,so why blow big money esp when theyre making things like this watch for 30 or 40 bucks depending on where u buy it..if y0ou were thinking about getting this watch? id say go for it its decent all the way around wont wow anyone but it works just fine at least on the items i tested against pro devices..the phone feature is great you can make and take calls on it when paired to your phone which fitbit doesnt do..so even that was a fun improvement..
I like to add that some of the watches do not allow you to set the settings, most are from UK, and not from USA. In your videos, you do not talk about changing the settings, I do see in Glucose that you are using mg/dl and not mmol/L, whic I think the watch calibrates to mmol/L, very differs to mg/dl. Are you diabetic? Why is Temp at °C is this not fixable? Talk more on settings...
13:30 driving for six hours? driving is a lot of caution, it's an intensive work for brain. I think glucose rise is needed for this. you could double check next time you drive a lot
Just from the testing perspetive there is a difference of 10 minutes between blood glucose and the glucose measured trough your skin. A CGM sensor it self is 70USD I believe that might also be worth it to improve your testing. These devices aren't where they claim to be now, how ever an imrpovement I see in testing is from at least this video is taking your bloodglucose 10 minutes ahead of the smartwatch glucose. Since the bigger companies are claiming to have this almost ready, cannot wait for your review of those.
So I don't eat or drink anything for a significant period of time before I do these reviews so the timing issue should not be an issue. I don't really want to buy a cgm to compare to things not claiming to be medical devices or accurate in any sense. Based on my strip testing I know they are not accurate. BUT if a CGM company wants to send me a device for review and comparison I'd be thrilled to do so.
Does the TK12 for incoming call does it shows caller name or just number, also, for MSM / email does it shows only subject or can have option to read the whole msm/email., thanks
I've lined up 5 glucose monitors using blood and the strips, and guess what? None of them agree with each other, varying as much at 10 points.
I showed my pharmacist he was shocked, he said, "Yeah, they're not very good at they?" Thought you should know...
As far as I know those thing have 15% inaccurate margin so yeah is not that accurate but it's quite helpful for daily control although you should also do some serious regular check every month. I also recommend you to use the device shortly after they get your blood to compare between their result and your strip result to see if your device is still good.
I would really like to see someone with a real CGM compare data with these.
Is the vibrating working jn this watch..I can't find it
where did you get the replacement band? i'm very allergic to the plastic thing i have no reflection on the watch band bc i'm actually even MORE allergic to my fit bit versa band which btw i replaced w this watch bc the 170 buck fit shit versa dies bc it lied about being ip 68 it was MAYBE 67 anyway the band you have looks like fabric whitch i absolutely need!! do tell tia!!
I wish I could give you a solid answer, but I've reviewed nearly 100 smartwatches at this point so I always have extra bands laying around.
Watch straps are standard sizes and there are lots of replacements available in every size, including canvas.
So you're obviously not a diabetic otherwise you would be concerned with that initial BG reading of only 4.6 mmol/L and not be saying "who knows what that means at this point". As a type 1 diabetic and after using the Dexcom G6 CGM, I am totally interested in the technology associated with these smart watches. Dexcom (along with other invasive CGM's), have priced themselves to the point where NO ONE can afford them, so I hope the likes of Dexcom and Abbot are starting to feel nervous about their long run of money scalping is finally coming to an end!!
I am not diabetic and share your hopes for new technology that will be able to measure blood glucose non-invasively. We are not there yet. That's why I am interested in this space. I am a very low carb athlete and primarily use ketones for energy, so low blood glucose does not concern me. Please note, dietary ketosis is *very different* from ketoacidosis which is a life-threatening condition. The fact that I am low carb is why I have an interest in this technology. I ultimately would like to know what spikes my blood glucose and what doesn't.
Yes I am Diabetic
How to change blood sugar units from mmol/l to mg/dl?
how long does the battery last?
I live in India
So when Xiomi TK 12 watch will get launched in India n in India Xiomi is highest selling smartphone brand
Which watch was the closest to your meter? I couldn’t tell.
It was this one, the TK12.
@@DaveTheKayaker thank you where can I get one I am blind and can’t use a meter because of other medical conditions and that sounds like it would be perfect for me. Thank you again.
@@brendahodges there are blood glucose monitors that speak the results.
What is the best gps smartwatch.
Use a white background can't see what's what. Why chose a black table
Brilliant review. Thanks
Glad it was helpful!
it seems the Xiaomi was consistent, whereas the other one fluctuated vastly.
Agreed.
this watch is not on the Xiaomi website and the packaging looks alot like the chinses watches on ebay
It is very likely a fake then. The Chinese can't even help but copy themselves, I guess. #WeirdPoeticJustice
Correct. It's not a Xiaomi.
I buy from AliExpress
So where did you order it from?
AliExpress, but I see the link I provided in the video description no longer works.
@@DaveTheKayaker price in Pakistan
What’s the round watch?
The E400.
th-cam.com/video/4PzzQwqsWQw/w-d-xo.html
Please help, I cannot find the setting to set up the time on the TK12.
So you joined TH-cam today with a wonky user name and this is one of your first comments???
Thanks great
How do I set the watch?
Set it lightly.
Hello, i can't have track sleep. Can you help me please?. Thanks
I can't have track sleep too. Everything else work as described
Looks a hell of a lot like Apple Watch
Such blood glucose smart watch monitors should be banned in the UK by NHS.
Agreed. USFDA should come down on them hard, too.
Thank you
Nice video sir
So out 8 watches u had tested, is Xiomi TK12 watch reasonably accurate on blood glucose
Also how about accuracy on heart rate variability?
I will make no claims regarding accuracy of non-invasive blood glucose measurements. I don't trust the technology. I need to stay in my line on this one...I don't give medical advice.
I buy this watch monday ,but i stil have bluetooth problem
with a connect between a my phone and watch this is wery iritant of my😢, but i have Samsung Galaxy, and this is Smartwatch
Xiaomi🤔
Are you giving away your smart watches?
When the stack gets too tall I give them away to family and friends.
133mg is way to much for healthy people. You should ask doctor, probably, if You are fat, You have first stage of diabetic 2, if you are thick or regular, maybe is number one. After meal, ie 1hour should be under 100. No less than 80. is range of health non diabetic person.
I don't trust any of the numbers.
HbA1c every three months is the best and most accurate way to measure glucose management. Even finger prick tests can be off enough to go above the upper range.
@@DaveTheKayaker the one from blood are quite accurate. you should really see a doc mate
Was way off and the screen stopped working after 45 days
All glucose values on all devices (including the blood test) are high, please visit a doctor to do a proper glucose test, just to be on the safe side.
It's not xiaomi
Description thusly updated.
It is not from xiaomi. It is fake name
Fake Xiaomi because logo display on watch
That isnt xiaomi
Maybe it is a fake, but it has the Mi sticker right on the box.