Do I need a subscription to use the Oura Ring 4?

The ring records data without one, but the detailed scores and insights need an Oura membership. Without it you see only basic metrics.

How long does the battery last?

Oura rates it at up to about 8 days. Most owners report roughly 5 to 7 days depending on how often they check the app.

Yes. It is rated 10 ATM, so swimming, showers and washing hands are fine. Avoid high-pressure water and deep diving.

Oura recommends using its sizing kit and wearing the sample ring for a day, including overnight. The ring cannot be resized, so fit matters.

Yes, it pairs over Bluetooth with both. The app is required for setup and viewing your data.

No. It has no GPS and no screen, so it estimates activity from motion and heart rate. For route and pace data, pair it with a phone or watch.

At eBay, for $140.00, 44% under what the other stores charge, as of our latest check.

Rated 4.5 out of 5 from 174 ratings.

3 stores we checked sell it, including eBay, Best Buy, Walmart.

$140.00at eBayChecked Nov 9

44% under what the other stores charge

Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.