Amazon Prime Day 2025: It's the second day of the first-ever four-day Prime event. These are the best deals on health & fitness gear, optics and STEM toys

Save 29% on the Blueair Blue Pure 511i Max. This stylish appliance is essentially a slightly smaller version of our favorite budget air purifier, the BlueAir Blue Pure 411i Max. With its great air-cleaning performance, user-friendly design and smart features, it is also one of the best options for tight spaces.

Save $50 on this smart-enabled air purifier, which we named as the best overall in our guide to the best air purifiers. With a three-stage HEPA filtration system and up to 1,588 square feet coverage, the immensely powerful Levoit Core 600S-P is a great choice for large spaces. This model does not get discounted often, so snap this deal up while it lasts.

Read our full Levoit Core 600S review (★★★★½)

Featured in: Best air purifiers, Best air purifiers for allergies

Save 22% on the smaller version of the Molekule Air Pro, a medically graded air purifier that we named as the best option for large rooms in our guide to the best air purifiers. This compact appliance features patented pollutant-destroying PECO technology and a HEPA filter, and some of the best air quality readings we have seen in a commercial air purifier.

Save 33% on the powerful Coway Airmega AP-1512HH. We named this quirky-looking air purifier the best option for saving energy — it does an excellent job of removing airborne particles, but it does not use a lot of electricity. Best suited for medium to large rooms, the AP-1512HH will keep your indoor air clean and fresh.

Read our full Coway-AP-1512HH review (★★★★)

Featured in: Best air purifiers

Save 16% on the Coway Airmega 250, one of the most powerful air purifiers we have tested. It may not be the best-looking appliance out there, but it is easy to clean, pet-friendly and suitable for spaces up to 1,860 square feet, and most importantly, it is effective against a wide range of airborne pollutants.

Read our full Coway Airmega 250 review (★★★★½)

Save $175 on the Blueair Classic Pro CP7i, the first air purifier equipped with the HINS blue light technology capable of removing yeast, viruses, bacteria and other harmful germs. Not only is it effective against a wide range of airborne pollutants, but it is also quiet, smart-enabled and very durable.

Read our full Blueair Classic Pro CP7i review (★★★★½)

Featured in: Best air purifiers, Best air purifiers for allergies

Save 50% on our all-time favorite electric toothbrush at Amazon. Rated at an impressive 4.5 out of 5 stars in our Oral-B Genius X review, this smart gadget boasts a stylish design, long battery life and plenty of AI-powered smart features to help you improve your brushing technique. The cherry on top? It comes with a spare brush head and a handy travel case.

Read our full Oral-B Genius X review (★★★★½)

Featured in: Best electric toothbrushes

Save 33%. The Oral-B iO Series are some of the best electric toothbrushes out there, especially when it comes to smart features, brushing performance and AI-powered brushing personalization. They do not get discounted that often, so snap this early Prime Day deal while it lasts.

Save 36% on the Philips Sonicare ProtectiveClean 5300. With over 14,000 five-star reviews, it is one of the most popular electric toothbrushes on Amazon — and understandably so. It is sleek, travel-friendly, efficient and boasts up to 14 days of battery life, plus it comes with two spare brush heads and a travel case.

Save $130 on the ultra-premium Oral-B iO Series 10, one of the best electric toothbrushes money can buy, and our favorite model with smart features. With its excellent performance and advanced design, it is a go-to choice for those who do not want to cut any corners.

Read our full Oral-B iO Series 10 review (★★★★½)

Featured in: Best electric toothbrushes

Save 30% on one of the best electric toothbrushes money can buy. Equipped with advanced AI-powered technology and a pressure sensor, the Oral-B iO Series 9 offers a highly personalized brushing experience and a wealth of premium features. It looks great on the bathroom shelf, too.

Read our full Oral-B iO Series 9 review (★★★★)

Featured in: Best electric toothbrushes

Save 26% on the Bitvae R2. We gave this model a strong 4.5/5 rating and included it in our guide to the best electric toothbrushes as the best budget option. The Bitvae R2 comes with a whopping 8 brush heads, five cleaning modes and up to 60 days of battery life, so you can get a lot of value for your buck.

Read our full Bitvae R2 Rotating Electric Toothbrush review (★★★★½)

Featured in: Best electric toothbrushes

Save 28% on the Apple Watch Series 10, one of the best smartwatches for iOS users. It looks and feels great, but more importantly, it packs plenty of tracking features and a rich ecosystem of apps to help you hit your goals with ease. The only downside? Short battery life.

Save $120 on Garmin's signature GPS smartwatch with fantastic battery life, sleek design and a multitude of workout tracking options. With its lightweight build, waterproofness and accurate heart rate measurements, it is a particularly great option for runners and triathletes.

Read our full Garmin Forerunner 945 review (★★★★½)

Save $100 on our reviewer's 'go-to' fitness watch. It's great for hiking, swimming and comes with a whole heap of body-stat tracking functionality. Best suited for large wrists.

Read our full Suunto Race Review (★★★★½)

Save 43% on the Garmin Forerunner 255 Music, an excellent option for running pros who need a reliable fitness tracker with music storage, but do not want to spend hundreds of dollars on the Fenix 8 or Forerunner 965. This watch strikes a great balance between quality and affordability, and now it is cheaper than ever.

Read our full Garmin Forerunner 255 review (★★★★)

Save 44% on the Garmin Fenix 7X Pro Solar, one of the best adventure watches ever made. This rugged beauty has everything you may need while perusing the great outdoors, from an ultra-durable design and solar charging to advanced fitness tracking tools — and now you can snap it up at its lowest-ever price.

Read our full Garmin Fenix 7 Sapphire Solar review (★★★★½)

Save 25% on the smaller size version of the Garmin Venu 2 smartwatch, one of the best Garmin watches for daily use. With its comfortable strap, sleek design and beginner-friendly features, it is a perfect option for those who do not like bulky, intimidating devices.

Save 32% on the Amazfit Active, our favorite smartwatch on a budget. With its compact build, comfortable straps, heaps of fitness tracking features and crisp, colorful display, this unassuming fitness tracker delivers excellent value for money. With this early Prime Day deal, the Amazfit Active is now more affordable than it was during the Black Friday sale.

Read our full Amazfit Active review (★★★★)

Featured in: Best fitness trackers

Save $53 on the latest iteration of our favorite smart ring. This compact and lightweight fitness tracker is a more discreet alternative to chunky smartwatches, and it offers heaps of valuable insights into your sleep, stress and general fitness. Available in a wide range of sizes and colors.

Read our full Oura Ring Generation 3 review (★★★★)

Featured in: Best fitness trackers

Save 35% on the stylish and ultra-light Amazfit Balance, one of the best smartwatches for stress and sleep management, and our favorite fitness tracker overall. This affordable gem is designed to help you strike a perfect balance between physical activity and rest, with features like breathing exercises, daily exercise suggestions and heart rate variability measurements.

Read our full Amazfit Balance review (★★★★½)

Featured in: Best fitness trackers

Save $600 on the Aviron Strong Series Rower, one of the best cardio machines for fun workouts and an excellent pick for fitness beginners. From addictive games and interactive races to guided workouts and a weight-inclusive design, this rowing machine has everything you may ever need to hit your fitness goals.

Read our full Aviron Strong Series Rower review (★★★★½)

Featured in: Best rowing machines, Best exercise equipment for beginners

Save 35% on this ultra-quiet magnetic rowing machine. With 16 levels of resistance, compact design, durable frame and a connected app filled with free courses and programmed exercises, it is one of the best cardio machines on a budget.

Save 21% on the bestselling Peloton bike. There is plenty to like about this iconic exercise machine — it is sturdy, sleek and easy to use, and it offers some of the best exercise classes on the market. We named it as the best option overall in our guide to the best exercise bikes you can buy in 2024.

Read our full Peloton bike review (★★★★½)

Featured in: Best exercise bikes

Save $100 on our favorite Apple AirPods Pro 2. These ultra-compact and comfortable earbuds come with up to 30 hours of battery life, and they can automatically pair to your iPhone and switch between Apple devices including Mac, iPad, and even Apple Watch.

Read our full Apple AirPods Pro 2 review (★★★★★)

Save $150 one of the best portable laptops for photo editing. With a speed M4 processor and 16 GB RAM, this is a fantastic all-rounder that you can lean on for almost everything.

Featured in: Best laptops for photo editing

Save $400 on last generation's M3-powered MacBook Air. This 15-inch version is ideal for those who need more space on the screen while working.

Save $800 on this incredibly powerful yet portable workstation. We raved over the power you can tap into in our ZBook Power review, with its smaller and more slender cousin equally as potent.

This portable powerhouse with a lightweight frame and fantastic build is currently 35% off on Amazon. We gave its larger 15-inch cousin 4.5 stars in our review, and this brilliant alternative is just as capable and travel-friendly.

Save $1,050 on a laptop designed to boost your productivity, with an unbelievable 64 GB RAM and a high-end AMD processor, all for under $1,000.

Save $200 on the 'world's most beloved telescope' this Prime Day. Explore nighttime wonders such as planets, the Moon and deep space objects with exceptional ease and clarity. We think it's the best telescope out there and it's not every day we see it discounted.

Full Celestron NexStar 8SE review ★★★★½
Featured in: Best telescopes

Editor's note, Jul 4, 2025 — We saw it as low as $1,359 last year, so there's room for the price to drop even further.

Save $84 on this Newtonian Reflector from Celestron. Feast your eyes on Saturn’s rings, Jupiter’s Galilean moons, the Moon's craters and beyond thanks to its 114m aperture. The setup can be a challenge if it's your first scope, but your efforts will pay off.

Editor's note, Jul 8, 2025 — $14 cheaper than yesterday. This is the cheapest we've seen it since early April. We saw them selling it for $219.95 before Prime Day last October, so there's room for the price to drop further.

Save $80 and take a step up the telescope ladder with the Celestron AstroMaster 130EQ. Observe Saturn's rings, several of Jupiter's moons and many deep-space objects, all atop the superior equatorial mount. Comes with eyepieces, finderscope, counterweights, tripod and EQ mount. (For an extra $10, you can get the version with a Motor Drive to track the stars.)

Featured in: Best telescopes, Best beginner telescopes

Editor's note, Jul 8, 2025 — $20 cheaper than yesterday. It's been dipping to around $250 for a few days at a time over the past few months, so there's still room for it to drop further.

Cheaper than Amazon — These are one of the best binoculars we've ever used — the views are bright and steady thanks to the image stabilization. Expensive, but worth it.

Full review: Canon 10x42L IS WP ★★★★
Featured in: Best binoculars, Best image stabilized binoculars

Save 40% on these budget-friendly stargazing binoculars with powerful 15x magnification and large 70mm objective lenses — we got beautiful views of the moon, Pleiades and Jupiter's Galilean moons.

Make sure you add the $10 coupon before checkout.

Review: Celestron SkyMaster 15x70 ★★★★
Featured in: Best binoculars for stargazing

Editor's note, Jul 8, 2025 — Deal still live. Although the $10 coupon isn't the biggest saving, they're a fantastic price for what they offer.

Save $50 on the Nikon Prostaff P3 10x42 binoculars. We gave 4/5 stars to the Prostaff P3 8x42, which are identical except for the magnification. We were surprised by their optical quality for the price and the 42mm objectives are good for generalist use and birdwatching. Plus, they're waterproof and fogproof.

Editor's note, Jul 8, 2025 — $30 cheaper than yesterday.

Save 57% on these 10x42 binoculars from Bushnell. Waterproof, nitrogen-purged and versatile, they're ideal for a number of activities from birdwatching and wildlife spotting to stargazing and getting a better view at sports games on a budget.

Editor's note, Jul 4, 2025 — Deal still live. This is a much lower price than they were last Prime Day. Annoying that the postage starts at $9.95, but it's still a great price.

Save $20 on the Orzorz Galaxy Lite star projector ahead of Prime Day when you apply the 15% coupon at checkout. It's rechargeable and projects high-quality imagery and comes with 5 slides included, with the option to purchase more to expand your library.

Full review: Orzorz Galaxy Lite ★★★★★
Featured in: Best star projectors

Save 40% on the Pococo Galaxy Projector. We thought it projected impressive, bright and vivid imagery, and it comes in four colors and is rechargeable, so you're not restricted in where you put it in your home.

Full Pococo Galaxy Star Projector review ★★★★
Featured in: Best star projectors

Editor's note, Jul 8, 2025 — We've seen it as low as $71.99 in previous deals, and they've inflated the 'before' price from $99.99, but this is still a great price.

Get a free 128GB SD card and bag in this Nikon Z8 deal on our top-rated camera — incredible for astro and wildlife photography. The camera body alone is the same price on Amazon, and we gave it 4.5 stars in our review.

Save $369 on one of the best beginner cameras complete with kit lens. It's Canon's most lightweight full-frame camera, making it ideal for travel. We gave it 4.5 stars in our review.

Save $250 on this impressive crop-sensor camera that combines speed and resolution — a powerful choice for wildlife photography, and we gave it top marks in our review.

Save $619. While this model has been superseded, it's still fantastic for astrophotography and we gave it 4.5 stars in our review.

Save a huge $1,700 on the Sony A1 — a seriously powerful camera for serious pros or anyone with the cash to spend. We were very impressed in our full review.