Fitness tracker deals that match Amazon prices, and some even blow them out of the water — but act fast, these huge discounts will not last long.

Get the best price on whichever Apple Watch model you're after this year. Generally speaking, an older watch means a lower price, but also fewer features.

With that said, the best gadgets can get pricey, so we're always looking for a chance to score a deal. Luckily, Amazon's Prime Big Deal Days (the retailer's two-day fall Prime Day event on October 8 and 9) is featuring pretty sweet savings on top tech—to the tune of up to 55 percent off.