Walmart offers the Fitbit Blaze Smart Fitness Watch in several colors for $149 with free shipping. (Best Buy via eBay, Amazon, REI, and several others have it for about the same price.) That's the lowest price we could find by $31, although we saw it for $24 less during Black Friday. It features a color touchscreen LCD, heart rate monitor, fitness and sleep tracking, multi-sport modes, GPS, notification alerts, and 5-day battery life. It's available in sizes S and L.

Note: Walmart has it in Blue size L for $146.91 when you opt for in-store pickup. (Amazon also charges the same for Blue size L.)