Spire's health tracker sticks on clothes and never needs chargingIt's totally waterproof so it'll survive the laundry.By R. England, 11.16.2017
8Matrix PowerWatch hands-on: The promise of a world without chargersYour body is this smartwatch’s power source.By C. Low, 11.09.2017
Sweetgreen's iOS app logs calories directly to Apple HealthBecause even salads can add up.By S. Shah, 07.14.2017
Fitbit now gives you credit for VR bike ridesIt also works with the nutrition app Habit and lets you do on-demand Peloton biking classes.By S. Dent, 01.04.2017
Smartphone accessory 3D-scans your food to count caloriesNutriRay3D's laser-scanning tech has gone to crowdfunding to bring accurate calorie counting to your smartphone.By M. Smith, 01.20.2016
NutriSmart prototype embeds RFID tags directly within food, traces your lunch from start to finish (video)By A. Toor, 05.30.2011