If you’re trying to keep tabs on your health this summer, add this Bluetooth smart scale to your bathroom for $30 with code dealym13. More than just displaying your weight, this device will automatically sync your BMI, body fat percentage, bone mass, hydration levels, muscle mass, and more into the app, allowing you to view graphs of your progress. The promo code will take off $10, so you can use the money you save to buy a kale smoothie or something.