Ending today, Groupon offers the Weight Gurus Smartphone-Connected Digital Bathroom Scale in Clear, model no. 0358, or Black, model no. 0359, for $17.99. Coupon code "TRIPLE" drops it to $16.19. With $3.99 for shipping, that's lowest total price we could find by $5, although we saw it for pennies less last month. It features an LCD screen, iOS or Android app, auto user detect for up to eight users, four sensors, and 400-lb. capacity.