Supercharge your sleep: Oura Ring 4 drops to lowest-ever price

The image shows a dark haired woman lying in bed with a silver ring on her finger. Inset, a close-up image of her finger shows the silver ring in more detail. — (Image credit: Future)

We've put all of the leading sleep trackers to the test but there's one that continues to set the standard for lab grade tracking — the Oura Ring 4, now down to $226 at Amazon from $399. That's an incredible 43% off deal, which translates to a huge saving of $173.

That's the lowest price we've ever tracked on the Oura Ring 4, making it the Amazon Prime Day sleep tech deal to beat. The Oura Ring 4 offers gold-standard sleep tracking, fending off fierce competition from the likes of Whoop, Garmin and Apple to stay at the top of our best sleep tracker guide.

Savings of this level from Oura are ultra rare and will likely sell out fast. But is it the right sleep tracker for you? Let's take a closer look...

The Oura Ring 5 was released earlier this month, which means prices are being slashed on the Oura Ring 4. Down to $226 in silver, brushed silver and black in a huge Amazon Prime Day deal, now is your chance to buy the Oura Ring 4 at its lowest ever price. The last time we tracked a price in this ballpark was the $249 price for Black Friday. (The gold costs $259, down from $499). There's also a monthly subscription fee of $5.99 to access all Oura features.

Our Oura Ring 4 review score: ★★★★★
User score: ★★★★ (3,800+ reviews)

Why the Oura Ring 4 is still our top sleep tracker

Our lead tester Eve Davies has been wearing the Oura Ring 4 to bed over a year and, despite also putting other lead trackers from Apple, Whoop and Garmin through their paces, still rates it as the best sleep tracker you can buy.

Our sleep tech tester testing the silver Oura Ring 4 — I asked the AI Oura Sleep Advisor for three tips to improve my rest. Here's what it suggested (Image credit: Future)

That's because, when you compare the accuracy of sleep analytics, functionality and value for money, the Oura Ring continues to come out on top for its intricate tracking.

Despite its 'set and forget' screen-free design, the Oura Ring accurately measures everything from time spent in bed through to heart rate variability, sleep stages, overall sleep score and readiness for the day ahead.

You'll need to pay a monthly $5.99 subscription fee to access the full breadth of what the Oura App can offer, but for that you get your sleep data in a digestible, user-friendly format that's geared towards helping you to get more better quality sleep through sleep coaching and relaxation audio. And isn't that what we all want from our sleep tracker?

Smaller budget? Try this instead...

The Tom's Guide Savings Squad is busy finding the best products for less this Prime Day! Follow Tom's Guide on Google News and add us as a preferred source to get all the latest. Alternatively, you can read our content on the Tom's Guide app available now for iOS and Android.

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Nicola is the Sleep Editor at Tom’s Guide, where she helps steer all mattress and sleep content published on Tom’s Guide. With a career in journalism spanning two decades, Nicola brings experience to the team and the knowledge of what makes a great article, whether that’s a how-to mattress cleaning feature, a deep dive into melatonin gummies, or an in-depth mattress review. As a sleep editor, few better understand how important a decent mattress is to the overall quality of our sleep, and precisely how our sleep impacts our physical and mental health. As well as tackling the vast topic of sleep, Nicola joins the raft of expert mattress specialists at Tom’s Guide, who test and compare a wide range of mattresses in order to guide readers towards the very best options on the market.