<p><strong>Garmin </strong></p><p>garmin.com</p><p><strong>$149.99</strong></p><p>It’s more than just a device that tells her weight (that wouldn’t be the nicest gift). The Garmin Index is a smart scale for the ever-curious, biohacking, stat-loving, macro-counting fitness chick. It measures BMI, water percentage, skeletal muscle mass, and more. Pair it with the Garmin fitness watch and she’ll have a more seamless fitness tracking experience.</p>