I'm a smartwatch expert — and this is the Garmin deal I'm recommending most on Prime Day

Garmin Instinct 3 Solar deal — (Image credit: Garmin)

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1. Rugged design
2. Reliable GPS
3. Epic battery
4. LED flashlight
5. It's 33% off

As a wearables expert, I’m often asked what the best smartwatch is. When it comes to logging outdoor adventures, the answer is easy: The Garmin Instinct 3. Rugged and reliable, it’s my go-to when hiking, snowboarding, snowmobiling, cycling, kayaking, swimming, and so much more.

Normally priced at $449, the Garmin Instinct 3 AMOLED is on sale for just $299 for Amazon Prime Day. That’s a savings of 33%.

Need some convincing? Here are the five biggest reasons why I highly recommend the Garmin Instinct 3 right now.

1. Rugged design with serious waterproofing

Garmin Instinct 3 on a user's wrist in the snow — (Image credit: Dan Bracaglia/Tom's Guide)

The Garmin Instinct 3 is designed for folks who enjoy extreme activities, but that doesn’t mean you need to be a daredevil to rock one. That said, it boasts 100 meters of water resistance; more than the Apple Watch 11 or Galaxy Watch 8. This is enough for high-impact watersports and even scuba diving.

The Instinct 3 is also shock and drop-proof with a generously sized metal-reinforced bezel for ample screen protection. For cold-weather sports enthusiasts, the buttons are grippy and large enough to use with gloves on.

2. Rock-solid GPS and heart rate tracking

Close-up of the Garmin Instinct 3 next to the Apple Watch Series 11 — (Image credit: Dan Bracaglia/Tom's Guide)

I spent a lot of time testing the Garmin Instinct 3 in the mountains, on the trails, and even while "urban hiking." GPS performance is rock-solid when compared to other proven tracking methods. The same is true for elevation data.

Of course, the Instinct 3 is much more than just a GPS watch; it also tracks your heart rate 24/7, records extensive sleep data, and provides actionable post-workout insights.

3. Epic battery life

Close-up of the Garmin Instinct 3 charging — (Image credit: Dan Bracaglia/Tom's Guide)

If there’s a longer-lasting smartwatch in the universe, I’m not aware of it. The standard Garmin Instinct 3 (AMOLED) models last for up to 18 days (45mm) or 24 days (50mm) per charge. Meanwhile, the Instinct 3 Solar can cruise for over 100 days for the smaller model and 150 days for the larger one before you’ll need to plug in.

4. A handy onboard LED flashlight to light your way

One of my favorite design elements on the Instinct 3 is a high-power LED flashlight tucked into the case at the top. You can adjust the power output and even switch the output to red during activities like stargazing or photo developing.

I seriously use this small but mighty light all the time, from illuminating my way during late-night dog walks to locating a lost phone under the bed.

5. It's 33% off

Close-up of the Garmin Instinct 3 on a user's wrist — (Image credit: Dan Bracaglia/Tom's Guide)

The best reason to buy the Garmin Instinct 3 right now? It’s on sale for 33% off (45mm AMOLED), which is just about the lowest price I’ve seen it go for. Of course, if you prefer the larger model, the 50mm Instinct 3 AMOLED is also on sale for 30% off at Amazon.

The 45mm Instinct 3 Solar, meanwhile, is reduced 25% at Amazon, and the 50mm Instinct 3 Solar is on sale for 22% off on Amazon.

Want more epic smartwatch savings? Here's a list of all the best Garmin Prime Day deals worth your attention.

The Tom's Guide Savings Squad is busy finding the best products for less this Prime Day! Follow Tom's Guide on Google News and add us as a preferred source to get all the latest. Alternatively, you can read our content on the Tom's Guide app available now for iOS and Android.

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Dan Bracaglia is the Tom’s Guide editorial lead for all things smartwatches, fitness trackers and outdoor gear. With 15 years of experience as a consumer technology journalist testing everything from Oura Rings to instant cameras, Dan is deeply passionate about helping readers save money and make informed purchasing decisions. In the past year alone, Dan has assessed major product releases from the likes of Apple, Garmin, Google, Samsung, Polar and many others.

An avid outdoor adventurer, Dan is based in the U.S. Pacific Northwest where he takes advantage of the beautiful surroundings every chance he gets. A lover of kayaking, hiking, swimming, biking, snowboarding and exploring, he also makes every effort to combine his day job with his passions. When not assessing the sleep tracking and heart rate accuracy of the latest tach gadgets, you can find him photographing Seattle’s vibrant underground music community.