Garmin makes some of the best fitness watches in the business, especially if you’re a runner or a triathlete. Several models are on sale for Prime Day, including the Forerunner 255 and 955. But you may want to act fast—Garmin deals often sell out quickly.

Garmin is dropping a major sale during Amazon's Prime Big Deal Days, with discounts as high as 44 percent off. But hurry, these deals will only be available for a few more hours. What makes Garmin's watches so great is the ability to deliver pinpoint accuracy inside a simple user interface.

The Garmin Epix 2 is a rugged titanium watch, and one of Garmin's strongest competitors to the Apple Watch Ultra. It features multisport tracking, an AMOLED display, and up to 16 days of battery life in certain modes. If you're serious about sport, this could be the Apple Watch-beater you've been waiting for.

When I first reviewed the Garmin Forerunner 255, I said it was a steal for runners who wanted dual-frequency GPS at a more palatable price. Well, thanks to Prime Day discounts, it’s even more palatable at $219.

The best fitness trackers can not only help you understand your exercise habits but give you real-time health data to help you hit all your workout goals — and there’s no better personal trainer to have by your side than the Garmin Forerunner 55.

Garmin Vivoactive 5: was $299.99 now $249.99 at Amazon Garmin's dainty AMOLED Apple Watch rival gets a hefty $50 discount here – a very good deal. Keep track of heart rate, energy levels, pulse ox and loads more, with 20 different workout profiles, Spotify, Deezer and other music integrations, and up to 11 days of battery.