As one of its daily deals, PricePlunge offers the New Balance N4 Heart Rate Monitor
, model no. 50117NB, for $16.99. Coupon code "coldplunge5" cuts that to $16.14
. With $1.99
for shipping, that's the lowest total price we could find by $19. It features three intensity levels, custom heart rate zones, 24-hour chronograph, chest strap, and water resistance to 165 feet. Deal ends today.