Today, Eufy's Bluetooth C1 smart scale is on sale for 23 percent off—now less than $26. What makes this scale smart? It syncs with your smartphone to keep track of your metrics and allows you to have multiple users for the whole family. It provides health metrics like weight, BMI, body fat percentage, body fat mass, muscle mass, bone mass, and more. (Note: body composition numbers from scales like this won't be as accurate as tests like Bod Pod or Dexa scans.) You can also sync up your data with Apple Health, Google Fit, or the Fitbit app. As an extra bonus, click the green 5 percent off coupon (underneath the price) before adding the product to your cart.