Stop Guessing About Your Hydration

You drink when you're thirsty. You follow generic hydration plans. You wonder why you're still cramping at hour 3 Not only are your sweat rate and sodium loss are completely unique to you, they change with every training session, temperature shift, and fitness adaptation. Generic hydration advice fails because it treats every athlete the same.

The hDrop Gen 2 is an impressively easy, reusable wearable hydration sensor that gives you real-time data on your sweat loss, sweat rate, sodium depletion, and sweat composition.

Know Your Sweat

Real-Time Sweat Intel – While disposable patches give you post-workout data, the hDrop Gen 2 tracks your hydration metrics every second during your training. You'll see exactly when you start sweating, how fast you're losing fluid, and what your sodium levels are doing—all while you're still out there.

Personalized Hydration Strategy – The companion app analyzes your sweat profile and delivers tailored hydration recommendations based on YOUR body's actual losses. No more following pro athlete protocols that don't match your physiology.

Built to Last, Not Trash – Unlike single-use sweat patches that cost $5-12 per workout, the hDrop Gen 2 is fully reusable with a rechargeable battery delivering 120 hours of active tracking per charge. That's unlimited sweat testing without the recurring costs or environmental waste.

Real Recommendations – Not only does it give you insight into your sweat rate and needs, it also gives real world recommendations for products that might match your hydration needs.

The technology uses proprietary electrode sensors to measure fluid and electrolyte losses continuously. The lightweight 30mm x 30mm device clips onto any heart rate monitor strap—chest or arm-based—and connects via Bluetooth to the iOS and Android app for instant feedback during your session.

Using The hDrop Sweat Monitor

Attach the hDrop Gen 2 to your heart rate strap before training. The device automatically detects when you start sweating and begins tracking. Review real-time metrics during your workout through the app, or check post-session analysis for detailed hydration insights.

Use it for every key workout to build your personal sweat profile database. The more data you collect across different conditions, the more precise your customized hydration strategy becomes.

Pro tip: Track sessions in various temperatures and intensities to understand how your sweat profile changes, then use those insights to dial in race-day fueling.

The hDrop Gen 2 is trusted by endurance athletes who need precision hydration data to optimize performance. This is your personalized hydration coach that never guesses and never stops learning what YOUR body needs.