Nice Sleep Tracker
I’ve used a Circul Ring 2 for 11 months and found the following:
The adaptive fit is great and the ring stays put on my finger. I have to wear it halfway between my knuckles for it to get reliable blood oxygen data, however.
Daytime metrics are unreliable and the app is buggy for workouts. I ended up using the ring only for sleep tracking and use an Apple Watch during the day.
Sleep metrics are excellent, including heart rate HRV, blood oxygen and skin temperature.
The analysis is pretty good, and they provide some nice statistics and graphs of my sleep performance. There is also limited Apple Health data transfer.
I would prefer, however if the Circul app sent all metrics to Apple Health so they can combine that with my Apple Watch data and provide a more comprehensive health overview.
The adaptive fit is great and the ring stays put on my finger. I have to wear it halfway between my knuckles for it to get reliable blood oxygen data, however.
Daytime metrics are unreliable and the app is buggy for workouts. I ended up using the ring only for sleep tracking and use an Apple Watch during the day.
Sleep metrics are excellent, including heart rate HRV, blood oxygen and skin temperature.
The analysis is pretty good, and they provide some nice statistics and graphs of my sleep performance. There is also limited Apple Health data transfer.
I would prefer, however if the Circul app sent all metrics to Apple Health so they can combine that with my Apple Watch data and provide a more comprehensive health overview.
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Response from developer
Please make sure you’ve updated both the app and the ring’s firmware — we’ve already resolved the app crash issue in the latest version. If you have any questions, you’re always welcome to contact us via in-app Feedback or by emailing support@circulsense.com . We’re happy to help!
Ring Is Great App needs work
Since the last update the app crashes and says the ring is disconnected also noticing the battery life is shorter.
Service exception
There is nothing more frustrating than getting a brand new product. Downloading the app, trying to set up an account, and then getting a service exception that won't let me proceed. So, this brand new ring I was eager to try is essentially useless — I can’t use it or get data from it. I have no idea what data it even collects. Very disappointing.
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So many features do not work
The real time O2 saturation has been “coming” for some time now. The BP is not a direct measurement but model-based and needs to be constantly validated with a cuff measurement. Seems more of a marketing ploy than actual feature. The battery lasts for maybe 3-4 days at most. Very disappointed.
Crashing
You guys need to do an update I’ve had my ring for eight months with no problems and you keep doing updates and it gets worse every time the red light on my ring doesn’t even light up anymore so it doesn’t give me my heart rate or SPO2 it’s still tracking data, but the app keeps crashing so you might want to do an update. I don’t know if my ring is broken, but how am I supposed to get in touch to troubleshoot?
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