As one of its daily deals, Amazon offers Prime members a selection of Casio Men's Tough Solar Stainless Steel Fitness Watches in several colors (Blue pictured) for $19.99 each with free shipping. (One style is $16.99.) That's tied with our mention from March and the lowest price we could find now by $11. Each features a solar rechargeable battery, stainless steel case, LED light with afterglow, stopwatch and countdown timers, alarm, and water resistance to 330 feet.

Amazon also offers Prime members the Casio Women's Tough Solar Stainless Steel Fitness Watch in Black/Pink or Black/Orange for $19.99 with free shipping. That's the lowest price we could find by $8. Both deals end today.