Mi Band 9: Scientific Review
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🔴 Best place to get a Mi Band 9 * ;-) : https://geni.us/MiBand9_TQS
🔴 Whoop Strap 4.0: https://join.whoop.com/QuantifiedScie...
($30 off any new WHOOP membership)
🔴 Eight sleep 350$/200$ (€) discount*: https://eight-sleep.ioym.net/TheQuant... + add code “UNBOXTHERAPY” or “TQS” for full discount
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📸My Gear* (paid links, supports the channel and doesn’t cost you any more)📸
Camera body (main): https://geni.us/SonyA6600_body
Camera lens (main): https://geni.us/SigmaContemporary
Camera (B-roll 1): https://geni.us/Sony_ZVE1
Camera (B-roll 2): https://geni.us/CanonEosM50MarkII and https://geni.us/Sony_ZVE10
Light: https://geni.us/Godox_VL150
Softbox: https://geni.us/NiceFotoSoftbox
Light stand: https://geni.us/WalimexLightstand
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Reference devices:
ZMax + Dreamento: https://www.biorxiv.org/content/10.11... & https://github.com/dreamento/dreamento
Polar H10: https://pubmed.ncbi.nlm.nih.gov/31004...
🔴 Polar H10: https://geni.us/hnXc
Timestamps:
00:00 Important intro
01:31 Heart Rate Test 1 : Walking
05:22 Heart Rate Test 2 : Running Indoors
07:50 Heart Rate Test 3 : Running Outdoors
11:01 Heart Rate Test 4 : Cycling Outdoors Pt1
14:02 Heart Rate Test 5 : Weight Lifting
16:44 Sleep Tracking Test
22:01 Sleep Tracking Test: Overview
25:01 Heart Rate Test 6 : Cycling Indoors
27:47 Heart Rate Test 7 : Cycling Outdoors Pt2
30:26 Final Conclusions & Short Message
So that wasn’t perfect, and especially the Band 9 on my right arm showed quite a few issues, but overall this does improve my impression of the heart rate tracking abilities of the Mi Band 9. Compared to the competition this is not bad at all for the price. You should not expect perfection, and the difference between my left and right wrist clearly shows there is biological variation even within a person, so there will likely also be variation from person to person. So, as always, please also check out some other reviewers for their results.
Back to the Mi Band 9, what is my conclusion? Well, in terms of heart rate tracking it definitely has some issues. But, considering the price of about 50 to 60 dollars, it’s actually not that bad. We saw it was quite OK for indoor and outdoor running, and for indoor cycling it did surprisingly well. For outdoor cycling I got somewhat mixed results, but still better than expected. So, overall, if you are just starting on your wearable journey, or you are looking to upgrade from an older similar device, this is not a bad choice. Still, be aware of the limitations. Now, the sleep stage tracking on the other hand wasn’t great. I would only use this to keep track of my total time in bed, which is arguably the most important thing for people to keep track of, given that many of us are simply not giving our bodies enough time to catch some sleep. So, I would recommend the Mi Band 9 to some people, but take into account all the limitations I just mentioned. If you do decide the get a Mi Band 9, a Whoop Strap, an Oura Ring, an Eight sleep Pod 4, another device, or anything at all on Amazon for that matter, even something as small as toilet paper, there are different affiliate and non-affiliate links in the description below, and some even provide a discount. Now, given that you watched this whole video on the Mi Band 9, I think you might like this video on the Whoop Strap or this video on my top recommendations for sleep tracking.
