Hi everyone welcome to Wesknows tech news and reviews! we get a lot of questions about the heart
rate accuracy on the trackers and smart watches we review today we'll be looking at the heart
rate accuracy of fitbit versa 3 and garmin venu sq baseline heart rate was measured by polar h10 ecg
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basically just a couple of hours ago i took the fitbit versa 3 and garmin venous q on an evening
run as you can see from the tracing and the polar beat app i ran 5.14 kilometers in just 45 minutes
the average heart rate was measured at 147 beats per minute and the max was 167 beats per minute
i started the run on all three devices simultaneously and took off i have overlaid the
heart rate plots on both smart watches over the polar h10 hrm chart let's go through each one with
a short recap of what the watch offers and then its test results by the end of the video we'll
rank the results to find the most accurate optical heart rate sensor of the tested watches first up
is the fitbit versus 3. it has a 15 percent larger amoled display than on the prior model coming in
at 1.58 inches and a 336 by 336 pixel resolution it's got a solid 6-day battery life and now has a
speaker as well as the microphone hence now alexa can actually tell you a joke or the weather versa
3 finally gets in bull gps in fact it's dual gps fitbit pay is here as well there's even more apps
to download my preference still lies with spotify coach and continuous spo2 it tracks your three
sleep stages so your light deep and rem sleep there are guided breathing exercises available now
with the ability to listen to meditation tracks on the fitbit app an interesting point here is
that the spo2 measurement is continuous during the night hence we will be testing that with a
medically certified continuous spo2 monitor in the next review we can see the watch measured
an average heart rate of 147 beats per minute and a max of 165. the average heart rate
is on the dot and in line with the polar h10 ecg chest strap while the max is off by 1.2 percent
from the charts we can see why the average is generally on par with the chest strap the trolls
are well recorded but in more than a few instances the trolls are lower and the peaks are higher
than that registered by the chest trap these lows and highs are overstated and understated
in a similar amount of cases hence the average is close to what is recorded by the h10 strap now
let's take a look at garmin venu sq in essence it's a budget version of the garmin venu but
at heart it's still the superb multi-sport watch it's square going back to garmin vivo series roots
dimensions are 37 by 40 by 11 millimeters and it's relatively light at just 39 grams the display is a
1.3 inch color lcd screen with corning glass 3. when using garmin pay entering your four-digit
code is easy on the larger than average screen battery life is also on par with the versa 3
and it's also 6 days there's an optical heart rate sensor with pulse ox aka sp02 sensor on the back
by the way spo2 is also continuous here hence we will test it as well there's dual gps
similar music streaming apps as we saw on the versa 3 spotify and diesel are available there's
the respiration rate monitor stress tracking and a body battery essentially tracks the exercise and
intensity at which you perform the exercise takes into account your heart rate spo2 and sleep data
to give you a score that represents how much charge you have for the new day ahead
the watch measured an average heart rate of 147 beats per minute and a max of 167. the average and
max heart rates are in line with the polar h-10 ecg chest strap from the charts we can see almost
an exact tracing of the venus q and polar h-10 there is no sign of any lag considering there is
45 minutes worth of heart rate readings here but the garment looks to have a very accurate optical
heart rate sensor let's discuss the results rank them and potentially make some conclusions
the venus q is the clear winner here the optical heart rate sensor has shown
amazingly accurate readings that trades every peak and troll especially noticeable is the fact
that in the initial 35 minutes of the run there were almost no variances no discrepancies in
the heart rate readings the versa 3 has shown it's also very capable and sporty
but with a generally accurate optical heart rate sensor not as exact as on the venus q the average
heart rate was a result of a number of understated throws and overstated peaks but still a great
result with having the max off by just 1.2 percent thank you all for watching let me know your
thoughts in the comments below if you found this heart rate test useful and insightful then please
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