SR300 Smart Ring | HRV Blood Pressure Continuous Heart Rate Body Temp Stress Blood Oxygen SPO2 Sleep

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[@mihaienache7111]

I've had both SR200 and SR300, neither of them are working anymore after 5 or 6 charges. Step count way out of scale compared with even the cheapest watch on the market. Sleep information not even close. Overall it could be a good product but it would required some development and probably in the end will be way more expensive

[@mihailnikolov4021]

I bought this and now cannot connect it. user manual says - charge and activate and then connect.. it is charge, but how can be activated?

[@michellenewbold3963]

Can you do a comparison with the RO2 smart ring.

[@DaveTheKayaker]

kzbin.info/www/bejne/hF7OqaGwgbd1Y9ksi=fD_D97Eto7ZRf1Zw

[@marchi4845]

How accurate is the blood pressure reading?

[@tyliful]

nice review. this model is much better than the sr200. that was junk. the only issue is that u.s size 9 is not available. fun to know the body's vital signs.

[@DaveTheKayaker]

Thank you. Yes, this one is much better.

[@KEHTABP]

How reliable are its BP measurements???

[@DaveTheKayaker]

It isn't a medical device so I don't trust it to be accurate or reliable.

[@bigdougscommentary5719]

How did you determine ring size? Two other brand rings that have been reviewed wound up being as size 8 and 9.

[@CJ-si3bg]

What app did you use? The scan info did not work

[@DaveTheKayaker]

1:39 JSRing

[@franzsembdner8373]

It's just a random number generator. Try to put it on a sausage and measure blood pressure or emotional stress😂 Absolutely scam with some colored LEDs

[@DaveTheKayaker]

Any of these devices that are not FDA-approved medical devices are suspect. Don't trust your health to any of them.