Apple Watch, Garmin, Oura, Whoop and Fitbit — all the best Prime Day sleep tracker deals in one place, from $86
We tested sleep trackers from Apple Watch, Garmin, Oura, Whoop and Fitbit — and they're all on sale on Amazon for Prime Day
Amazon is full of sleep tracker deals this Prime Day, but it can be hard to know what's a good deal or what tech is worth buying. That's why we've rounded up every deal on every sleep tracker we've ever tested and loved, and that includes the Oura Ring 4 (now down to $226 at Amazon and £199.99 at Amazon UK)
The Oura Ring 4 may be our favorite sleep tracker, but it's not the only entry in our best sleep trackers guide to get a price drop this Prime Day. In this sleep-tracking deals hub we've included all the best Amazon discounts on top choices from Apple Watch, Garmin, Oura, Whoop, Withings, and Fitbit, all reviewed by the Tom's Guide team.
While Amazon's Prime Day event has, to be honest, been underwhelming in some areas, it definitely hasn't let us down in the sleep tech department. So, here's a list of the top five sleep tracker discount in both the US and UK, and why they're the best Amazon Prime Day mattress and sleep deals we've seen so far.
Don't forget your Prime Membership...
Amazon is offering a free 30-day trial of Amazon Prime this week. As soon as you sign up, you'll get access to this year's Prime Day discounts on thousands of items, from mattresses to air fryers. Prime memberships (from $14.99 a month) also include access to Prime Video, Prime Reading, Prime Music, Amazon photo storage, plus free shipping.
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Top 5 sleep tracker US Prime Day deals
The Oura Ring 4 is a sleek, stylish ring that sits comfortably on your index finger, tracking key sleep metrics. Its accompanying app features an AI sleep advisor, which analyses your sleep data and tells you how you can improve. The Oura Ring is now 43% off at AMazon, but remember there's a $5.99 monthly subscription fee to unlock all features (but the first month is completely free).
Our Oura Ring 4 review score: ★★★★★
User score: ★★★★ (8,000+ reviews)
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The Fitbit Charge 6 tracks sleep using an SpO2 sensor for patterns, displaying total time and scores on-wrist, with deeper stages reserved for Premium app users. In testing, its metrics closely mirrored the more expensive Oura Ring, proving highly impressive and accurate for a fraction of the price. t just under $86, the Fitbit Charge 6 is the Prime Day deal that offers the best value for money.
Our Fitbit Charge 6 review score: ★★★
User score: ★★★★½ (6,600+ reviews)
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The Whoop 5.0/MG is an advanced recovery and sleep tracker designed for athletes. It tracks essential fitness and health metrics, including VO2 max, HRV status, blood oxygen levels, and sleep efficiency scores. Additionally, it delivers live ECG readings and monitors your overnight skin temperature to help optimize your training.It uses a subscription model instead of charging upfront for hardware. This Prime Day, the advanced annual fee is discounted to $299 (down from $359), while the entry-level subscription is $199.
Our Whoop 5.0/MG score: ★★★★
User score: ★★★★½ (3,600+ reviews)
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The Garmin Index Sleep Monitor is a screenless, lightweight armband with a week-long battery and smart alarm. This dedicated tracker offers accurate sleep metrics, letting users charge their main smartwatch overnight without missing health data. Down from $169.14 to $130.50, it's one of the more budget-friendly options.
Our Garmin Index Sleep Monitor review score: ★★★★
User score: ★★★(200+ reviews)
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The Apple Watch features the famous Sleep Score, a metric which scores sleep quality out of 100. The comfortable smart watch breaks down data into three key areas: sleep duration, bedtime consistency, and interruptions. This targeted breakdown helps users identify specific habits, such as irregular schedules, allowing them to make focused improvements to their routine. At Amazon, this 30% discount is selling fast, so Prime Day really is the best time to buy.
Our Apple Watch 11 review score: ★★★★
User score: ★★★½(5,000+ reviews)
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Top 5 sleep tracker UK Prime Day deals
The Oura Ring 4 is our top choice for sleep tracking thanks t its accurate data. comfortable and stylish fit, and an intuitive app featuring AI-assisted sleep coaching. The downside is a subscription fee of £5.99 a month, but we think it's worth it as it unlocks key features. (There's a first-month free trial.) Now 43% off at Amazon, this is your chance to save big this summer.
Our Oura Ring 4 review score: ★★★★★
User score: ★★★★ (3,800+ reviews)
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Unlike every sleep tracker in this hub, the Withings Sleep Analyzer is actually a discreet sleep-tracking mat that slides under your mattress. It's great for anyone who finds wearables irritating or sleep-disrupting, and it even has sleep apnea detection. Now 32% off at Amazon, the Withings is a top pick if you need a sleep tracker under £100.
Our Withings Sleep Analyser review score: ★★★★
User score: ★★★★ (2,300+ reviews)
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Fitbit accurately tracks sleep onset and nightly wakeups. However, in-depth metrics—including guided sleep programs and the overall nightly sleep score (calculated from heart rate, restlessness, and sleep stages) — are locked behind a Fitbit Premium paywall of £7.99 a month, while free members only see total time asleep.
Our Fitbit Inspire 3 review score: ★★★★½
User score: ★★★★½ (11,000+ reviews)
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Like all Apple Watch sleep trackers, the SE 3 provides a daily Sleep Score out of 100, and you can look at your sleep metrics on the intutive Health app. However, the Apple Watch SE 3 is the first model in Apple's entry-level range with sleep apnea alerts.
Our Apple Watch SE 3 review score: ★★★★
User score: ★★★★½ (469+ reviews)
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The Garmin Index Sleep Monitor is a rare, screenless upper-arm tracker that provides a comfortable, distraction-free alternative to watches. At just under $133, it precisely captures overnight sleep data at a fraction of the price of some sleep trackers. However, be warned that Bluetooth connectivity can be a problem.
Our Garmin Index Sleep Monitor review score: ★★★★
User score: ★★★½ (200+ reviews)
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Frances Daniels is a PPA-accredited journalist and Sleep Staff Writer at Tom's Guide with an MA in Magazine Journalism from Cardiff University. Her role includes covering mattress and sleep news and writing sleep product reviews and buyer's guides, including our Best Hybrid Mattress 2025 guide. She is interested in the relationship between sleep and health, interviewing an array of experts to create in-depth articles about topics such as nutrition, sleep disorders, sleep hygiene, and mattress care. She is also our specialist on mattress toppers — producing bed topper reviews and taking care of our Best Mattress Toppers 2025 guide — and leads content relating to fiberglass-free beds for a non-toxic sleep. Outside of Tom's Guide, she has written for Ideal Home and Marie Claire.
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