Interested in reviews of Ultrahuman Ring Air Matt Grey size 12? It got 3.7 out of 5 stars from our customers. Find specific customer reviews of Ultrahuman Ring Air Matt Grey size 12 below. We will appreciate if you also share your experiences with Ultrahuman Ring Air Matt Grey size 12 after purchasing.
Rated 18/06/2025, variant Ultrahuman Ring Air Matt Grey size 5
Verified purchase
I've had it for a few days and so far so good, but judging by the reviews I'm afraid of an early complaint, I'll update if I do 😀
The size is fine, it fits with the sizing kit, it's just a bit bigger, but it's nothing noticeable
The size and the ring itself is fine, I have small skinny fingers, so I was worried that it would look chunky, but compared to the Oura ring it looks just fine
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Jakub, Bilovec
Rated 16/05/2025, variant Ultrahuman Ring Air Matt Grey size 11
Verified purchase
battery life 4-5 days
range and quality of measured data
low weight
the need for the first 14 days of data collection to establish trends
the application could be simpler and clearer
easy to scratch
after 2 months it stopped working - impossible to connect the ring to the mobile => complaint, Alza solved it within 3 days by refunding the money
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Anonymous customer
Rated 15/04/2025, variant Ultrahuman Ring Air Matt Grey size 9
Verified purchase
Resolved by complaint. They probably have a QC problem and the product needs to be developed further. I'll wait for the next generation.
The ring could not be paired with the phone
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Customer, Praha 3 - Strašnice
Rated 09/04/2025, variant Ultrahuman Ring Air Matt Grey size 9
Verified purchase
Amaxing app
Sleep tracking
Failed after 3 month - asked Alza for new one / repair
Second one failed also - looks like a cheap crap
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Vladimír, Olomouc 9
Rated 27/03/2025, variant Ultrahuman Ring Air Matt Grey size 11
Verified purchase - review from a price comparison website
I am very happy with the ring and I am quite satisfied. The only dissatisfaction is perhaps the very frequent charging. Battery life is at most 1/4 of the claimed length, which is very poor.
The perfect thing for tracking body rhythms. Better than a watch for me, especially at night.
You hardly know about it, and I don't wear any other rings
the app is pretty rich on the basics, so you can learn a lot about your rhythms, which is great
The ring lasts a day, max. two days of operation, much less than it should
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Michal, Brno 21
Rated 02/03/2025, variant Ultrahuman Ring Air Matt Grey size 8
Verified purchase
Relatively high product failure rate considering the price. While Ultrahuman is very responsive and will replace the ring with a new one, so the support is great, but we would prefer a product without the need for replacement after a year of use.
lots of features
great online support from Ultrahuman
light
in case of a failure within the warranty period, they send a new ring almost immediately (handled by the manufacturer through the app)
battery life
charging length
after a year I have to replace due to battery problems
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Martin, Zlonice
Rated 03/02/2025, variant Ultrahuman Ring Air Matt Grey size 9
Verified purchase
measures a lot of things and has a detailed overview
one can read what data means what and get advice on what to do
can withstand quite a lot of mechanical attacks
light
after a month, my first one left
second after two
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Martin, Nový Vestec
Rated 01/02/2025, variant Ultrahuman Ring Air Matt Grey size 7
Verified purchase
Works on average a month, expensive toy
Unfortunately, on average, it lasts a month, then dies, and the claim takes exactly 30 days.
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Anonymous customer
Rated 16/01/2025, variant Ultrahuman Ring Air Matt Grey size 9
Verified purchase
In any case, it does not have a measurement of blood oxygen saturation. There are several threads on reddit that deal with this issue. He doesn't. The manufacturer itself kindly states this information and ALZA just took over (I don't blame them).
I will be returning for that reason, an important piece of information for me
does not have an oximeter
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Freitag Project Development s.r.o., Praha
Rated 23/08/2024, variant Ultrahuman Ring Air Matt Grey size 9
Verified purchase
great add-on and control for data from Whoop 4.0 and Samsung Galaxy Watch. update quickly, chat support life 24/7/365
in total. comparable HRV measurements with Whoop 4.0 (market leader)
circadian rhythm
recommended time windows most suitable e. g. to consume coffee without affecting sleep
countermeasures and support when the phase shift of the circadian rhythm is delayed or delayed
measurement of VO2max
dynamic constantly updated early recovery
monitoring the stress level in individual phases of the day according to the impact on regeneration and sleep
many more
short battery life barely 3 days
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