Best Prime Day deal: Oura Ring 4 for lowest-ever price

RECORD-LOW PRICE: As of July 10, the Oura Ring 4 is on sale for $296.65 on Prime Day. That's the lowest-ever price on Amazon.

Prime Day is into its third day, with tons of tech deals and discounts at your fingertips. This includes the sought-after Oura Ring 4. The fitness tracker is on sale right now for $296.65. That's 15% off the list price — and the best price we've ever seen.

The smart ring tracks sleep, activity, and stress levels and can be synced to compatible iOS and Android apps.

Not sure if the Oura Ring is the right fitness tracker for you? Mashable's Samantha Mangino put together a guide comparing the Oura Ring to Whoop. According to Mangino, the Oura Ring came out as a winner in more than one way: "Oura Ring is designed with the everyday person in mind, best for those trying to better understand their body and habits. It's also a less conspicuous tracker, blending into your everyday style. It has a superior app design that feels more holistic and less clinical compared to Whoop's. Plus, it's more expensive up front, but it's a better value in the long term."

Mashable even bestowed a Mashable Choice Award for the smart ring. According to tech editor Kimberly Gedeon, "The Oura Ring 4 is absolutely worth it, particularly if you have an iPhone."

Read our review of the Oura Ring 4.