Sports/Fitness: Sport iPhone Armband $3 (Reg. $8), more

Today only, as part of its Gold Box Deals of the Day, Amazon is offering up to 60% off highly rated Optimum Nutrition Gold Standard, Gold Standard Pre-Workout, and Casein Protein products. While there are a number of notable deals here, the Optimum Nutrition Gold Standard 100% Whey (Naturally Flavored, 4.8 Pound) for $46.39 shipped is certainly a standout. That’s $10+ under the going rate, the lowest Amazon has offered it for and the best we can find. It is gluten-free and uses no synthetic coloring, flavoring or sweeteners. Rated 4.3/5 stars from nearly 1,600 Amazon customers.

Next up, UltraProof via Amazon offers the Trianium ArmTrek Sport Armband for iPhone 6/Galaxy S6 for $7.99, but using code 3PG2NIR7 at checkout will drop your total down to $3.24. It ships free for Prime members or in orders over $35. That’s more than $5 below the original listing and the best we can find. It is made of stretch resistant neoprene and features headphone/charger cutouts, a protective screen, key pocket and a “lifetime warranty”. Rated 4.6/5 stars from over 350 Amazon customers.

Head below for discounted treadmills, home gyms, weights, smart scales, outdoor/workout apparel and more: