In the northern hemisphere, it's hard to not spend the winter in a state of slumbering sloth, just waiting for sunshine and good times to start again. Conveniently, Prime Day fitness tracker deals (all four days of them) drop right in the middle of summer, which makes this a great time to pick up the smartwatch or smart ring that you just didn't have the cash for at Christmas.
This year, you have four whole days to shop the Amazon deals, but if you don't want to take that much time, I've highlighted the sales on some of our favorite fitness trackers and smart rings. Not a subscriber yet? Perhaps our list of the best Amazon Prime Perks can convince you to sign up. Deal hunters should also check out our Best Amazon Prime Day Deals roundup and Prime Day liveblog.
Updated July 9, 2025: We've added new deals on the Withings Body Comp, the Withings Scanwatch 2, and the Abbott Lingo continuous glucose monitor.
WIRED Featured Deals
Fitness Tracker Deals
The Best Smart Ring
As you might expect with my job, I am frequently asked what fitness tracker to get, and this year, more often than not, I have told people to just buy an Oura Ring 4 (9/10, WIRED Recommends) . You don't have to wear it on your wrist, the battery life is longer than most trackers, and Oura issues interesting, meaningful software updates regularly. This is the first time it's gone on sale, and you should get it.
A Continuous Glucose Monitor
Courtesy of Lingo Abbott Lingo Continuous Glucose Monitor $49 Hello Lingo
Of all the fitness trackers that I've tested this year, none has inspired as many questions as a continuous glucose monitor (CGM). You click the sensor on your arm and a tiny sensor reads the glucose in your interstitial fluid. When you eat something that spikes your blood sugar, like, oh, a cookie, you get an alert on your phone saying, “No! Don't do that!” If you're pre-diabetic or dealing with a health condition, you're probably very interested in getting one. Abbott is currently offering 9-15 percent off the sensors.
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