Product Description
Every athlete knows hydration is vital. Yet, it’s the most neglected or misunderstood pillar of performance – until now.
The problem is that hydration needs vary, but most hydration plans treat every athlete the same. Further, your sweat rate and profile change with training, environment and more.
FLOWBIO gives you insight that can make a difference – providing real-time sweat intelligence.
The End of Hydration Guesswork
FLOWBIO uses a highly accurate sweat sensor to measure your fluid and sodium loss in real-time during training and racing.
No more generic hydration plans or hoping you’re drinking enough of the right things — you get precise data about what your body needs, anytime.
Advanced Hydration Intelligence (AHi®) is the system FLOWBIO uses to combine your real-time sweat data with session intensity and environmental conditions to deliver personalized hydration recommendations through the integrated app.
AHi® technology turns your sweat profile into actionable insights — telling you exactly what to drink, when and why.
Real-Time Sweat Monitoring
The sensor captures and analyzes your sweat without needles or invasive procedures, using proprietary algorithms to track sweat rate and sodium loss with lab-grade accuracy (90% accurate in lab conditions, 83% accurate for sodium in field conditions).
Your sweat profile changes based on fitness, environment and intensity – even within sessions or events. But most hydration strategies don’t account for this.
FLOWBIO adapts to your individual physiology and conditions, helping you avoid the performance killers that come from dehydration: decreased endurance, impaired decision-making, muscle cramps and fatigue.
FLOWBIO Sensor Highlights
- Advanced Hydration Intelligence – AHi® technology for personalized recommendations
- No needles, no lab – Non-invasive sweat collection through pressure channels on your body.
- Lab-grade accuracy – 90% accurate in lab conditions, 83% field accuracy for sodium
- 100+ hour battery – USB-C charging for extended use
- Integrated app – Complete hydration planning and data analysis
- Personalization – Learn about your profile and which hydration products are best for you
- Environmental adaptation – Adjusts for temperature, humidity, and intensity
How to Use FLOWBIO
Apply the sensor before training, connect to the app and start your session. The sensor automatically collects and analyzes your sweat, providing real-time hydration recommendations and post-session insights for optimal recovery and future preparation.
Decode Sweat. Delete Dehydration.
For gear that arrives damaged or falls under the manufacturer's warranty: Please send a photo of the damage or error message to hello@thefeed.com. We will either help process a claim for the product and a replacement product or store credit will be provided, or we will direct you towards the correct place to make a warranty claim for the product. For returns on gear that you have used, we follow the manufacturer's instructions for satisfaction guarantees. This is specific to each gear product, terms and conditions may change.
FLOWBIO Hydration Sensor
The world's most accurate wearable sweat sensor delivers real-time fluid and sodium loss data, transforming your sweat into actionable hydration insights so you train smarter, race stronger and recover with purpose.
- 90% LAB ACCURACY
- 100-HOUR BATTERY LIFE
- IP55 WATER RESISTANCE
- WEIGHT: 10 GRAMS
- 8-SECOND SAMPLING RATE
- REUSABLE, NO PATCHES REQUIRED
- 80 HOURS OF DATA STORAGE
- INTEGRATES WITH GARMIN, WAHOO, COROS, ZWIFT
Flowbio FAQ
The Sensor captures your sweat and analysis its contents. Proprietary algorithms use the sensor data to estimate your sweat rate and sodium loss. The data is shown on the FLOWBIO App, offering recovery and preparation suggestions and tips to optimise your performance.
Currently, data from the Sensor is accessible only during cycling, running or walking activities. We plan to expand and include other sports as we grow.
The Sensor is designed to be worn on an existing heart rate monitor. We support both optical arm-based monitors and chest straps, offering flexibility in wearing the Sensor either on the upper arm or on your back.
Our latest data has indicated that we are 90% accurate in lab based conditions. In the field we achieve accuracies up to 83% for our sodium with as little as 23 mg difference (that is 6x less than a pinch of salt). Our fluid loss is 73% accurate with as little as 250mL difference to in-field gold standards. If you are interested in learning more about the accuracy of the system behind the Sensor, you can request our whitepaper here.
You can exercise without your phone nearby, but for syncing the Sensor and viewing your data, having your mobile device is essential.