hDrop Gen 2
Wearable Hydration Sensor
$249.99 & Free Shipping Excl. Tax
Excl. shipping
Why choose hDrop?
Continuous
hDrop provides real-time sweat monitoring, delivering instant data on sweat loss, rate, and electrolyte levels.
Reusable
Our hydration wearable features proprietary reusable electrode sensing technology, enabling accurate and rapid tracking of sweat metrics.
Personalized
Our hydration biosensor offers personalized hydration strategies by assessing individual fluid and electrolyte losses during activities.
Real-world sweat insights
A single lab sweat test costs around $250*
hDrop starts at $249*
Imagine paying close to the price of a single sweat test, but getting a reusable device you can use again and again. Instead of one single snapshot, hDrop tracks your sweat and sodium losses during real exercise, in the conditions you actually train and race in.
Single sweat test One-time result, usually not during your real workout
$250*hDrop Reusable sweat and sodium tracking during real exercise
$249*Pay once. Test repeatedly. Build your own hydration profile over time.
*Prices shown are approximate USD reference prices. Final pricing may vary by country, currency, taxes, shipping, and regional availability.
What You Will Get
Unlimited Sweat Testing
Get real-time hydration insights, monitor sweat loss, sweat rate, sodium and potassium depletion, and temperature as you train.
Smart Companion hDrop App iOS & Android
Get personalized hydration insights and tailored recommendations to optimize your performance.
Sweat, decoded
See your sweat data throughout your workout.
Follow how your sweat sodium concentration changes during training and racing, alongside your fluid- and sodium-loss data.
Session summary
Example session- Total Fluid Loss
- 34.6 fl oz
- Avg Sweat Rate
- 38.2 fl oz/h
- Sodium Loss
- 963 mg
- Potassium Loss
- 126 mg
Sweat sodium concentration
Minutes
View session values
| Metric | Value |
|---|---|
| Total Fluid Loss | 34.6 fl oz |
| Avg Sweat Rate | 38.2 fl oz/h |
| Sodium Loss | 963 mg |
| Potassium Loss | 126 mg |
Seamless Wearability
Lightweight, comfortable, and built to withstand light to the most intense workouts.
Sustainable & Rechargeable
A reusable design with more than 60-hour battery life. Environmental and economical friendly.
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Achieve Optimal Hydration
Real-time sweat loss, rate, and temperature tracking
Unlock Personalized Insights
Sodium and potassium estimation for custom hydration strategies
Uncompromised Comfort
Easy-to-wear design that integrates seamlessly into your workout routine
Reliable and Long-Lasting
Reusable with a rechargeable battery offering 120 hours of active use per charge
Sweat-Proof and Durable
Designed to endure even the most intense physical activities
Sustainable
One-time investment, eliminating the recurring cost of disposable patches
LEDs for pre-, during, and post-activity indications
Why would you pay for every workout?
The burden of sweat patches
While disposable patches for hydration monitoring can seem convenient, they may prove costly in the long run, especially for regular athletes. For those who work out three times a week, the recurring cost of disposable patches, ranging from $5 to $12 each, quickly adds up. This continuous spending, month after month, year after year, can detract from the focus on what truly matters – achieving your peak performance.
Why we do not use disposable patches?
Exercising three times per week adds up a total of 144 workouts per year.
At a $5 per sweat patch the costs add up.
Yearly using patches
Now, there is a smarter choice.
Order NowThis is what people said about hDrop
Do you deliver internationally?
Yes, we do! hDrop has distribution centers in the US and Netherlands. When you start the pre-order process and input your address, customs, taxes, and duties will be calculated. Customs will be pre-paid from our side so that delivery is hassle free on yours.
What about its size?
The device’s dimensions are as follows: 30mm (L) x 30mm (W) x 15mm (H).
Does it work without internet connection?
Yes, the hDrop App now supports offline mode. You can start and complete activities with the hDrop even without a stable internet connection, then upload the data later once connectivity is restored. The hDrop works as a standalone product and does not require any additional hardware, only your phone to start and end the activity.
Can I use it underwater?
No, we do not recommend using it underwater.
How long can the activity be?
The activities can be 10 hours long. We recommend activities that are 6 or 7 hours long, and starting a new one right away is fairly easy.
Does it come with straps?
Yes, the hDrop comes with two arm straps (two different sizes, M and L).
Can I use it on a sauna?
We do not recommend using the device in a sauna. It contains a LiPo battery, which can be damaged by prolonged exposure to high temperatures.
How accurate is the hDrop?
hDrop is currently the most accurate wearable sweat sensor in the world. Independent preliminary validation results show 92.5 percent accuracy for sweat loss measurement and 87 percent accuracy for sweat sodium loss during dynamic exercise. These results were obtained under controlled cycling and running protocols across multiple age groups and demographics, with full peer-reviewed publication scheduled for release in 2026.
Does it require a subscription?
No, hDrop does not require a subscription.
Does it require disposables patches?
No, hDrop is fully reusable and does not require disposable patches.
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Order Now30 Days Returns Accepted*
*Used returns: shipping plus $26.99 recycling fee deducted; remainder refunded.
