I've tested dozens of fitness trackers — and I'd snap up this Oura Ring 4 Prime Day deal for $50 off right now

a photo of the Oura Ring 4
(Image credit: Future)

I’ve tested dozens of fitness trackers over the years, but the Oura Ring is still one I’d recommend if you want something small, comfortable, and packed with smart health insights. Right now the new Oura Ring 4 is 15% off for Prime Day at Amazon, which is pretty rare since these rings don’t often drop in price outside of big sales like Prime Day or Black Friday.

When you buy the Oura Ring 4, you get a sleek smart ring that tracks your sleep, heart rate, and readiness, plus period predictions if you want them.

Oura Ring 4 (Black)
Oura Ring 4 (Black): was $349 now $296 at Amazon

The most affordable Oura Ring 4 deal right now is the black version, which still looks sleek and has the same thin, comfortable design. Other colors like gold or silver are also available but the price can vary.

I’ve tested the original Oura Ring and appreciated how it offers a much gentler and less obtrusive way to track fitness and health compared to some of the more hardcore sports tracking watches out there. So when my colleague Kate Kozuch tested the Oura Ring 4 and called it “the new gold standard for smart rings", I knew I had to keep an eye out for it going on sale.

She highlights in her review of the ring its all-titanium design and recessed sensors that make it comfortable enough to wear day and night. Kate also points out the expanded size range and multiple finishes that help you find the right fit.

One important thing to know is that the Oura membership, which costs $5.99 a month, unlocks the full range of insights, including daily readiness scores, sleep and stress tracking, and period predictions. But with this Prime Day deal, the $52 savings on the black Oura Ring 4 could cover nearly nine months of membership.

Be sure to visit our Prime Day live blog for top deals and discover all the free stuff available on Amazon this Prime Day.

Jessica Downey
Senior Fitness Writer

Jessica has been a fitness writer at Tom’s Guide since 2023, bringing three years of experience writing about health, fitness, and the great outdoors. Her passion for exercise began during her childhood, where she spent weekends hiking and competing in local athletics club events. After earning a master’s degree in journalism from Cardiff University, Jessica found the perfect way to combine her love of storytelling and fitness into a career.

Jessica is passionate about testing fitness gear and tech, using her reviews to help readers make informed buying decisions. She ran her first marathon in April 2024, finishing it in 3 hours and 48 minutes. Through her training, she’s developed a deep understanding of what it takes to grow as a runner, from effective workouts and recovery techniques to selecting the right gear for every challenge.

When she’s not at her desk, Jessica enjoys spending time in the kitchen crafting new recipes, braving cold water swims and hiking.

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