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Oura Ring 4 - Size 9 - Black - $199 (cupertino)
Bollinger near Deanza
condition:
like new
make / manufacturer:
Oura Ring
model name / number:
Model 4
size / dimensions:
9
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Cash only at Trader Joe's parking lot at Bollinger and Deanza.
See below from the internet.
Many software and hardware updates to the latest Oura ring make it more accurate, useful, and easier to wear.
Looks and feels more like jewelry than ever. New Smart Sensing platform makes the ring more accurate and easier to wear. Updated app with interesting new features. Better battery life. Both Android and iOS users can wear it.
This year, more women than men wear the Oura ring—yes, that chunky finger nugget that is, or was, the health tracking tool for every Huberman-listening, MMA-fighting, raw-meat-eating tech bro. Fifty-nine percent of all Oura ring wearers are now women, and in particular, women in their twentiess, who have bought rings at 2.6 times the rate of other demographic groups.
It’s the only tool that can reliably predict my period. Many fitness trackers now have a temperature sensing feature that purportedly allows you to track that drop in basal body temperature (BBT) that accurately predicts your period, and that you used to only be able to measure with a thermometer under your tongue right when you get out of bed. However, in testing, smart rings like the Oura are the only devices that that have consistently caught it.
With its new, rapidly expanding user demographic in mind, Oura has made a number of significant hardware and software changes to the fourth generation of the ring that make it a more convenient and wearable tool than ever.
The new Oura ring 4 doesn’t have any bumps. The sensors—which include red and infrared LEDs for blood oxygen; green and red LEDs for heart rate, heart rate variability, and sleep respiration; a digital temperature sensor; and an accelerometer—are recessed inside the body of the ring to make it thinner and more wearable.
The sensors are also now asymmetrically positioned to take measurements at a variety of tissue penetration depths, and Oura upgraded the number of signal pathways from 8 to 18. The Smart Sensing algorithm works with the sensors to continuously adapt to taking the best measurements at the best possible times, no matter what you happen to be doing with your hands. In practice, this means that the ring doesn’t have to be perfectly positioned all the time to take accurate measurements.
There’s a new charging dock, which is very attractive and charges the ring within an hour (even though it's not backwards compatible with the Gen 3). The battery life was also extended, which is true.
The data is now organized into three tabs. Daily metrics like your activity goal and daytime stress are in the Today tab; you can click through more details in the Vitals tab; and measurements that are taken over time are shown in the My Health tab, like the new Cardiovascular Age feature that shows your overall heart health.
Unlike a wrist-based fitness tracker, you do have to check the app regularly on your phone instead of glancing at a morning report on a screen.
A new feature called Timeline also allows you to add tags quickly and easily throughout the day, so you can spot unhealthy behavior patterns. Just tapping a button on the front page of the app is a much less tedious way of recording my activities than setting aside time to journal at the end of the day.
One feature in Timeline that I’m particularly excited about is Meals, which lets you upload pictures of your meals to the app for an AI analysis and to let you time your meals to align with your chronotype. Meals is a feature within Oura Labs, the tab where you can try features that are still in development, and now it’s open to both iOS and Android users.
Like other temperature-tracking smart rings, Oura has also partnered with the fertility tracking app Natural Cycles to predict periods, ovulation and prediction date that coincides with what the algorithm-based Clue app predicts.
The ring is now smaller and lighter, it comes in much more stylish (and expensive!) new finishes, and without the bumps, it looks and feels a lot more like jewelry. It’s easier and more accurate to wear, and new software features are useful, actionable, and accessible.