Amazon Prime Day 2024: Best deals on health & fitness gear, optics and science kit

Multiple science products displayed on a blue background with the live science prime day deals logo in the top left corner
(Image credit: Future, Celestron, Molekule, Meta, Swift, Oral-B, Samsung)

Amazon Prime Big Deal Days 2024 has finished, but some of the deals are still live today, bringing heaps of amazing discounts on a range of fitness and science essentials.

We are continuously scouring Amazon and other major retailers for the best offers on health and science kit like air purifiers, fitness trackers, treadmills, electric toothbrushes, telescopes, microscopes, binoculars and more. We are also keeping an eye on price drops on some of our favorite brands, like Garmin, Fitbit, Apple, Celestron, AmScope and Sony.

Or, maybe you are considering investing in a new bit of kit and want to do more research first. You may be wondering whether you Should buy a Garmin this Prime Day or should you buy an air purifier? If so, we have weighed up the pros and cons of whether it's better to buy now or wait for a later sales event to avoid missing an even better deal.

Amazon Prime Big Deal Days 2024 Quick List

Amazon Prime Day air purifier deals

BlueAir Blue Pure 411i Max
Editor's pick
BlueAir Blue Pure 411i Max: was $169.99 now $113.99 at Amazon US

Save $56 on the excellent BlueAir Blue Pure 411i Max. This compact air purifier offers great air-cleaning performance and a sleek, user-friendly design. It also comes with an air quality sensor and auto mode, and it has plenty of smart features, too. We named it as the best budget option in our guide to the best air purifiers.

Read our full BlueAir Blue Pure 411i Max review

Featured in: Best air purifiers

Levoit Core 600S-P
Levoit Core 600S-P: was $299.99 now $249.99 at Amazon US

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 perfect for removing all kinds of pollutants, and up to 1,588 square feet coverage, the Levoit Core 600S-P is a great choice for large spaces.

Read our full Levoit Core 600S review

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

BlueAir DustMagnet 5440i air purifier
BlueAir DustMagnet 5440i air purifier: was $319.99 now $227.99 at Amazon US

Save $82 on this tabletop air purifier from BlueAir. Sleek, powerful and whisper-quiet, the DustMagnet 5440i is a great go-to for medium- to large-sized rooms and we love the brand, having tested several of their air purifiers.

Molekule  Air Mini+
Molekule Air Mini+: was $359.99 now $229.99 at Amazon US

Save 36% 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 it offers some of the best air quality readings we have seen in a commercial air purifier.

Coway 400 Air Purifier
Coway 400 Air Purifier: was $470.43 now $349 at Amazon US

Save 26% on this ultra-powerful COWAY Air Purifier. This beast of an appliance covers up to 3,120 square feet, and thanks to its two sets of washable pre-filters and True HEPA Filters, it does a fabulous job at trapping pollutants like smoke particles, traffic emissions and airborne allergens.

Molekule Air Pro
Molekule Air Pro: was $999.99 now $614.99 at Amazon US

Save 38% on the Molekule Air Pro, one of the most powerful air purifiers we have tested. This sleek appliance features patented pollutant-destroying PECO technology, a HEPA filter, detailed air quality readings and plenty of smart features, and it can cover spaces of up to 1000 square feet (92.9 square meters). We named is as the best option for large rooms in our guide to the best air purifiers.

Read our full Molekule Air Pro review

Featured in: Best air purifiersBest air purifiers for allergies

Amazon Prime Day electric toothbrush deals

Oral-B Genius X Limited
Oral-B Genius X Limited: was $199.99 now $99.99 at Amazon US

50% off Our all-time favorite electric toothbrush is now half-price 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

Featured in: Best electric toothbrushes

Oral-B iO Series 5
Oral-B iO Series 5: was $149.99 now $99.99 at Amazon US

Save 20%. 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.

Philips Sonicare Sonicare ProtectiveClean 5300
Philips Sonicare Sonicare ProtectiveClean 5300: was $109.96 now $59.95 at Amazon US

Save 45% on the Philips Sonicare ProtectiveClean 5300 in black, one of the best-rated grooming essentials on the Amazon website. This sleek electric toothbrush boasts a powerful motor, up to 14 days of battery life, a pressure sensor, three cleaning modes, two spare brush heads and a handy travel case.

Oral-B iO Series 10
Oral-B iO Series 10: was $379.99 now $279.99 at Amazon US

Save $100 on one of the most technologically advanced toothbrushes money can buy. The Oral-B iO Series 10 has it all: excellent brushing performance, a pressure sensor, multiple cleaning modes, heaps of smart features and more. This model does not get many discounts, so grab this deal until it lasts.

Read our full Oral-B iO Series 10 review

Featured in: Best electric toothbrushes

Oral-B iO Series 9
Oral-B iO Series 9: was $299.99 now $239.94 at Amazon US

Save 20% ahead of Prime Day 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

Featurd in: Best electric toothbrushes

Bitvae R2 Rotating Electric Toothbrush
Bitvae R2 Rotating Electric Toothbrush: was $34.99 now $24.99 at Amazon US

Save 29% on the Bitvae R2, our favorite budget electric toothbrush. We gave this model a strong 4.5/5 rating and included it in our guide to the best electric toothbrushes. The Bitvae R2 comes with a whopping 8 brush heads, five cleaning modes and up to 60 days of battery life. Available in multiple color options.

Read our full Bitvae R2 Rotating Electric Toothbrush review

Featured in: Best electric toothbrushes

Amazon Prime Day fitness tracker deals

Garmin Forerunner 945
Garmin Forerunner 945: was $599.99 now $299.99 at Walmart

Save $300 on this incredible smartwatch with fantastic battery life and a whole host of features — 14 days of battery life, GPS-enabled, waterproof and comfortable to wear. We liked it so much we gave it a solid 4.5/5 star rating.

Read our full Garmin Forerunner 945 review

Samsung Galaxy Watch 6
Samsung Galaxy Watch 6: was $329.99 now $169.99 at Amazon US

Save 46% on one of the best-looking smartwatches around. The Samsung Galaxy Watch 6's performance is now even better thanks to a new CPU chip and increased RAM.

Read our full Samsung Galaxy Watch 6 review

Featured in: Best fitness trackers

Editor's note 09/10: This model is now at its lowest-ever price.

Garmin Venu 2S
Garmin Venu 2S: was $399.99 now $289.99 at Amazon US

Save 28% on the smaller size version of the Garmin Venu 2 smartwatch, one of the best Garmin watches we have tested. With its comfortable strap, sleek design and plenty of health tracking features, it is one of the best fitness trackers for daily use.

Amazfit Active
Amazfit Active: was $109.99 now $80.74 at Amazon US

Save 27% on the Amazfit Active smartwatch, our favorite fitness tracker under $150. It is exceptionally compact and comfortable to wear, it is packed to the brim with fitness tracking features, and its crisp, colorful display is hard to match in this price range. With this early Prime Day deal, the Amazfit Active is more affordable than ever before.

Read our full Amazfit Active review

Featured in: Best fitness trackers

Editor's note 08/10: The Amazfit Active is now the cheapest it has ever been.

Oura Ring Gen 3
Oura Ring Gen 3: was $349 now $278.18 at Amazon US

Save $79 on 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

Amazfit Balance
Amazfit Balance: was $199.99 now $166.75 at Amazon US

Save 17% on the stylish and ultra-light Amazfit Balance, our favorite fitness tracker for stress management. As its name clearly indicates, this smartwatch 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

Featured in: Best fitness trackers

Editor's note 09/10: The Amazfit Balance is now at its lowest-ever price.

Amazon Prime Day rowing machine deals

NordicTrack RW900 Smart Rower
NordicTrack RW900 Smart Rower: was $1,599 now $1,004 at Amazon US

Save 37% and get 30 days of iFit included with this fantastic rowing machine from NordicTrack, the creator of some of our favorite exercise machines to lose weight. This ultra-sturdy rower comes with powerful magnetic resistance and a 10-inch interactive display.

Echelon Smart Rower
Echelon Smart Rower: was $999.99 now $767.99 at Best Buy

Save $232 on the Echelon Smart Rower. We named it as the best option for small spaces in our guide to the best rowing machines on the market. It combines compact, foldable design with excellent rowing experience, and it is quiet, too.

Read our full Echelon Smart Rower review

Featured in: Best rowing machines

Merach Q1S Rowing Machine
Merach Q1S Rowing Machine: was $399.99 now $199.99 at Amazon US

Save 50% on this magnetic rowing machine. Quieter functioning due to the magnetic flywheel and free courses and programmed exercises with the Merach app make this a bargain.

Editor's note 08/10: Get a further 5% off with a coupon.

Amazon Prime Day exercise bike deals

Image
was $1,445 now $1,228.24 at Amazon US

Save 15% this Prime Day 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

Featured in: Best exercise bikes

Matrix ICR50 Exercise Bike
Matrix ICR50 Exercise Bike: was $1,398 now $999 at Best Buy

Save $399 on this excellent exercise bike from Matrix, the maker of some of the best gym-grade exercise machines on the market. This stylish machine offers exceptional durability, crisp 22-inch interactive display and ultra-realistic resistance range.

YOSUDA Pro Magnetic Exercise Bike
YOSUDA Pro Magnetic Exercise Bike: was $399.99 now $319.99 at Amazon US

Save $80 on this sleek machine from YOSUDA, the maker of our favorite budget exercise bike. This no-frills machine is sturdy, quiet and comfortable to ride, and it can be easily adjusted to fit your height and arm's spread.

Amazon Prime Day running headphones deals

Amazon Echo Buds
Amazon Echo Buds: was $119.99 now $34.99 at Amazon US

Save a massive 71% on these ultra-compact Amazon earbuds with active noise cancellation. Light and comfortable to wear, this wallet-friendly set comes with up to 15 hours of battery life, two color options and crisp, dynamic sound to power up your workouts.

Apple AirPods Pro 2
Apple AirPods Pro 2: was $249.99 now $168.99 at Amazon US

Save $80 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

Jabra Elite 8 Active
Jabra Elite 8 Active: was $199.99 now $169.99 at Amazon US

Save 15% on our all-time favorite running earbuds. One of the very few models that we gave a full five-star rating, the Jabra Elite 8 delivers a truly excellent user experience. They are comfortable to wear, they have a long battery life, and most importantly, they offer fantastic sound quality — all at a reasonable price.

Read our full Jabra Elite 8 Active review

Featured in: Best running headphones

Amazon Prime Day laptop deals

Apple MacBook Air M3 (13-inch)
Apple MacBook Air M3 (13-inch): was $1,099 now $849 at Amazon US

Save $250 on the latest Apple MacBook Air, complete with an M3 chip and lightweight chassis that's perfect for just about any task you throw at it.
Editor's note Oct 8: This deal is $100 cheaper than July Prime Day

Apple MacBook Air M3 (15-inch)
Apple MacBook Air M3 (15-inch): was $1,699 now $1,424 at Amazon US

Save $275 on the latest Apple MacBook Air 2024, this 15-inch version is ideal for those who need more space on the screen while working.

Amazon Prime Day telescope deals

If you're on the hunt for one of the best telescopes during the Amazon Prime Big Deal Days, make sure you also check out our prime day telescope deals hub for all the cheapest deals.

Celestron Advanced VX 8-inch EdgeHD
Celestron Advanced VX 8-inch EdgeHD: was $2,799 now $2,399 at Adorama US

Save $400 on a telescope that offers sharp views of a variety of celestial objects, from planets and the Moon to faint galaxies, nebulas and star clusters. It's fantastic for astrophotography and lightweight enough to transport to areas with dark skies. We think it's ideal for intermediate astronomers who want to take the next step.

Featured in: Best telescopes

Editor's Note Oct 10 — Deal still live. It's the same price on Amazon.

Celestron NexStar 130SLT
Celestron NexStar 130SLT: was $639.95 now $551.54 at Amazon US

Save $88 on this affordable GoTo telescope from Celestron. With a database containing over 4,000 stars, galaxies, nebulas and more, it will automatically locate and slew to your chosen subject within seconds.

Editor's note Oct 10 — It was around $60 cheaper in the Prime Day sale, but this price is still lower than it usually is.

Celestron NexStar 4SE
Celestron NexStar 4SE: was $679 now $450 at Amazon US

Save $229 on this amazing GoTo telescope from Celestron. Its younger sibling, the 8SE, is 'the world's most beloved telescope', so if you're looking for a fantastic scope that will last years without breaking the bank, this is a great deal — and we've never seen it this cheap before.

Amazon Prime Day binocular deals

For all the cheapest binocular deals in one place, head over to our prime day binocular deals hub, where we'll be keeping track of all the best binoculars, best binoculars for stargazing and best binoculars for kids.

Occer 12x25
Occer 12x25: was $35.99 now $25.20 at Amazon US

Save 30% on these binoculars for kids over at Amazon. We think they're great compact binoculars and they give fantastic clarity and performance for their size and price.

Read our full Occer 12x25 compact binoculars review

Featured in: Best binoculars for kids

Editor's note Oct 10 — It was cheaper during prime day (we saw it as low as $23.03), but this is still a great price with the 30% coupon).

Vortex Optics Crossfire HD 10x42
Vortex Optics Crossfire HD 10x42: was $229.99 now $120.38 at Amazon US

Save 48% on these binoculars with clear, bright and sharp views with a very usable magnification for a variety of pursuits. They're waterproof and fogproof, and they come with a padded carry case for easy transport and storage.

They also come in 8x42, 10x50 and 12x50 variants, although the 10x42 is a fantastic all-rounder.

Editor's note Oct 10 — It's been fluctuating up and down by a few dollars every day for the past week — this is actually cheaper than Prime Day!

Bushnell Excursion 10x42
Bushnell Excursion 10x42: was $104.95 now $44.99 at Adorama US

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 Oct 10 — Same price during Prime Day.

Amazon Prime Day star projector deals

Awanhe Astronaut Star Projector
Awanhe Astronaut Star Projector: was $18.82 now $14.99 at amazon.com

Save 20% on this fun, astronaut-shaped star projector. There are a lot of versions of this projector dotted around the internet, but we think it's an affordable yet whimsical way to add a relaxing atmosphere to your room, and it's ideal for any young space fan's bedroom.

Read our full Astronaut Star Projector review

Featured in: Best star projectors

Editor's note Oct 10 —No longer showing as a deal, but it's still the same price.

Amazon Prime Day camera deals

cameras on a green background

(Image credit: Fujifilm, Canon, Nikon, Sony)

Looking for your next camera? Head over to our prime day camera deals hub for all the cheapest deals on the best astrophotography cameras, best cameras for wildlfe photography and more.

Sony A7R V
Sony A7R V: was $3,898 now $2,809 at Walmart

Save over $1,000 on one of the best cameras for wildlife photography in this better-than-Prime-Day deal at Walmart — the cheapest we've ever seen it! You'll need to be quick as this price won't stick around for long.

Featured in: Best cameras for wildlife photography

Editor's note Oct 10 — Deal still live.

Canon EOS R5
Canon EOS R5: was $3,899 now $2,899 at Amazon US

Save $1000 on one of the best cameras on the market — the Canon EOS R5 is now under $3,000 at various retailers for the first time since July's Prime Day. Most places are selling it for the same price, although this Adorama deal throws in a 128GB card and a card reader for free.

Read our full Canon EOS R5 review

Featured in: Best cameras for wildlife photography

Editor's note Oct 10 —Deal still live.

Nikon D850
Nikon D850: was $2,996.95 now $2,196.95 at Adorama US

Save $800 on the best DSLR ever made at various retailers ahead of Prime Day. It's incredible for just about any type of photography you could possibly want to do with it — it handles noise fantastically for astro, has excellent autofocus for portraits and wildlife photography and can capture beautiful uncropped 4K video.

It's the same price across most retailers, however, this Adorama deal includes a carry case, a 64GB memory card and a bunch of other accessories.

Read our full Nikon D850 review

Featured in: Best astrophotography cameras, Best cameras for wildlife photography

Editor's note Oct 10 —Deal still live.

Canon EOS R6 Mark II
Canon EOS R6 Mark II: was $2,499 now $1,999 at Adorama US

Save $500 on the 24.2MP Canon EOS R6 Mark II in this Adorama deal, which includes a 128GB Lexar card, carry case, 2 batteries, a card reader and a cleaning kit. It has a 40 FPS burst rate which is fantastic for wildlife photography and would be a fantastic option as an entry-level full-frame camera to improve your skills.

Editor's note Oct 10 — Although this price is pretty standard for the R6 Mark II, this bundle gives extra value for money. We have previously seen it as low as $1,899.

OM System OM-1 Mark II
OM System OM-1 Mark II: was $2,399.99 now $1,999.99 at Adorama US

Save $400 on the flagship OM-1 Mark II from OM System (formerly Olympus). It has some really neat features, including Starry Sky AF to get pin-sharp stars every time, Live Composite to create effortless star trails and an in-built Live Graduated Neutral Density filter, as well as up to 50FPS continuous shooting and 120FPS locked focus shooting.

Editor's note Oct 10 — Deal still live.

Nikon Z6 III
Nikon Z6 II: was $1,996.95 now $1,596.95 at Adorama US

Save $400 on the Nikon Z6 II — with 24.5MP resolution and 4K video, a 14FPS burst rate, eye detection for humans and animals and impressive low light performance — a fantastic camera for many uses. This deal also includes a carry case, a 64BG card and other accessories.

Editor's note Oct 10 — We saw it for $100 cheaper last week, but it's still a good price.

Sony A7 II with 28-70mm f/3.5-5.6 lens
Sony A7 II with 28-70mm f/3.5-5.6 lens: was $1,598 now $998 at BHPhoto

Save $600 on the Sony A7 II mirrorless camera with the 28-70mm kit lens in this B&H Photo deal. It's a fairly old model (almost 10 years old) but it's still worth considering for beginners wanting to take the leap into the full-frame system, with Sony's famously accurate autofocus and 24.3MP sensor producing beautifully sharp and detailed images for just under $1,000.

Editor's note Oct 10 — Deal still live.

What is Amazon Prime Day?

What is Amazon Prime Big Deal Days?

Amazon Prime Big Deal Days is an annual event that happens in October each year. During the event, Prime members can access special deals on a range of products — but a lot of items are on sale for the general public, too. Sign up for Amazon Prime.

Who else has a sale during Amazon Prime Big Deal Days?

Sometimes big retailers like Walmart and Best Buy compete with Amazon during sales events — this isn’t a guarantee though and as this event is a ‘surprise’ sale there may be fewer retailers offering deals. If you’re looking for particular products at low prices, have a scroll through our round-ups of the best treadmill deals or electric toothbrush deals.

When is Amazon Prime Big Deal Days 2024?

Amazon Prime Big Deal Days 2024 starts at midnight Tuesday October 8 and ends 23:59 Wednesday October 9.

Jase Parnell-Brookes
Managing Editor, e-commerce

Jase Parnell-Brookes is the Managing Editor for e-commerce for Live Science and Space. Previously the Channel Editor for Cameras and Skywatching at Space, Jase has been an editor and contributing expert across a wide range of publications since 2010. Based in the UK, they are also an award-winning photographer and educator winning the Gold Prize award in the Nikon Photo Contest 2018/19 and named Digital Photographer of the Year in 2014. After completing their Masters degree in 2011 and qualifying as a teacher in 2012, Jase has spent the last two decades studying and working in photography and publishing in multiple areas, and specializes in low light optics and camera systems.

With contributions from