Sharp’s first smartwatch can tell how many calories you’ve eaten without logging a single meal

Sharp is making its first foray into wearables, and its new Karada Mate Watch comes with a trick no mainstream competitor has pulled off. It uses a bioelectrical impedance sensor to monitor changes in body water and sugar levels and estimate calorie intake from food and drink in real time. How the calorie tracking works Sharp developed the feature in partnership with HEALBE Corporation, a California-based biometric data firm, using its patented FLOW Technology to power the calorie estimation. By reading fluid shifts and sugar changes in the body, the smartwatch approximates how many calories you have consumed and plots that against calories burned to give you a running calorie balance.

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