Like all of life's mysteries, there really is no telling what products will be the biggest-sellers during Amazon's Prime Day. As the retailer kicks off its annual bargain bonanza by dropping prices on everything from smart TVs and laptops, to video doorbells, robot vacuums, pro-grade blenders, and beyond, it's anyone's guess. Will the Instant Pot be a wildly popular once again? Some premium wireless headphones? A jumbo box of Cheez-Its? Hard to say.

What we do know, though, is that we'll be keeping our eyes peeled and tracking sales to surface the deals that are flying off the figurative shelves all day(s0 long during Prime Day 2021's 2-day runtime (June 21 through June 22). So stay tuned and keep checking back to scope out the latest and greatest Prime Day sales below.

Looking for even more great Prime Day deals? Check out our updating lists of the Best and Most Popular Prime Day sales, plus other category-specific roundups on the best discounted Camping & Hiking Gear, Tech, Cocktail Essentials, Travel Must-Haves, Backyard Upgrades, Grilling Tools, Kitchen Gear, and New Homeowner Staples.