Blutek via eBay offers the Fitbit Alta Heart Rate + Fitness Wristband in several colors (Black pictured) for $144.99. Apply coupon code "P20MEMDAY" and check out with PayPal to cut the price to $115.99. With free shipping, that's a $4 drop from three weeks ago and the lowest price we could find by $33. It tracks your daily activity, heart rate, and sleep patterns and features an OLED display showing caller ID and fitness stats. It's available in select sizes S and L. Deal ends May 29.

Note: This coupon can only be used once per PayPal account within a single transaction.