hDrop Sweat Sensor
Reusable sweat sensor for athletes
hDrop Sweat Sensor launched on August 11, 2021 with 5 votes. The site was still online in September 2026, 5 years on.
What it does
hDrop is a reusable sweat sensor for athletes that measures sweat rate, fluid loss, sweat sodium concentration and electrolyte loss in real time. Built for runners, cyclists and triathletes, hDrop helps athletes understand their sweat profile and build a personalized hydration strategy using data from real training and racing.
hDrop is the world's most accurate reusable wearable sweat sensor, tracking hydration, sweat rate, and sodium loss in real time for athlete sweat testing.
Muscle cramps, heat exhaustion, fatigue… Dehydration can impact your well-being before you even realize it and impair your athletic performance. The hDrop biosensor analyzes the biomarkers on your sweat and transform them into valuable data to take care of your performance. hDrop is the only reusable sweat sensor that has been independently scientifically evaluated during real exercise in the heat, demonstrating ~92% accuracy for sweat-loss tracking and ~87% accuracy for sweat sodium-loss across running and cycling trials. Since that 2025 study, our team has continued improving the sensor and algorithms, with ongoing validation showing preliminary sodium-concentration accuracy…from hdroptech.com
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