ONASPORT is a wearable sweat analysis sensor designed to measure physiological biomarkers in real time. The platform enables athletes, coaches and sports professionals to monitor hydration, sodium concentration, heart rate and other key performance indicators to optimize training and recovery.
We have created a comprehensive sweat analysis platform to obtain the best data on sports performance
ONAS10 is the single-use consumable card that enables ONASPORT to analyse sweat during each session. It provides access to data on sweat rate, sodium, dehydration and sweat-inferred lactate.
Buy ONAS10
Identify your effort thresholds through an accessible, non-invasive physiological sample. Value the impact with precision during exercise in anaerobic zones.
An indicator until now only for ONASPORT without the need for interruptions.
Coming soon:
Use technology to detect in real-time your lactate level coming from a direct source so you can make informed decisions based on your own data.
Measure your fluid loss level to optimize your replenishment strategy. With this information alongside your sweat data, we will be able to track the evolution of your sweat rate and correlation.
Quantify the amount of fluid lost in relation to time.
In addition to quantifying sweat and seeing it based on the climate environment, you can complement your fluid replenishment strategy, adapting to the weather conditions of any location over time.
Continuous salt tracking, of excreted sodium and concentration in sweat, especially with a view of your capacity in the environment.
The combination of all variables, of the real-time evolution of information about your hydration in a complete way.
Tasa knows it is a reference for sports monitoring data, through our comfortable chest strap.
We have thought of everything to give you a 360° view of what is happening inside you.
Connect to ONASPORT from your Smartphone and analyze your sweat data minute by minute to make better decisions during exercise. Control your performance like never before.
Platform developed so you can visualize all your data together, analyze metrics, and identify existing correlations. Overlay your sweat and Garmin data in a single chart.
You can also analyze in real time or subsequently the performance of a group of athletes. Manage and compare your team easily from a single interface.
Access Athlete Portal
Connect ONASPORT directly to your Garmin device to view real-time data on your watch or cycling computer.
Coming soon: Integration with other brands
Perform stress and performance tests, incorporating a precise sweat-inferred lactate analysis in a very short time.
ONASPORT's speed in obtaining and structuring large volumes of physiological data enables centers to draw more complete and personalized conclusions, thus optimizing physical fitness assessment and tracking each athlete's progress.
Conclusion: a better sports medicine service, increased care quality, and resource optimization.
Designed for athletes of all levels, from the best in the world to beginners.
Optimize your workouts, hydration state, and fluid replenishment strategy. Establish your own effort thresholds and train like top-level athletes.
Result: optimal preparation to compete, taking care of your health and maintaining full control over your performance.
Manage large volumes of physiological data in a structured way.
This collective monitoring capability facilitates comparisons between athletes, group segmentation, and group-level internal load control. Additionally, the Onalabs Athlete Portal is adapted for R&D projects, offering support for longitudinal studies.
Result: better athlete performance, retention, and professional prestige.
We provide you with key data on your performance in an automated way.
Through an incremental test, we analyze your sweat rate, sodium concentration, and lactate thresholds.
With this information we draw up a personalized document with recommendations so you can optimize your workouts in a simple way.
Incremental TestMiniaturized instrumentation that integrates all our technology and connectivity, ensuring a comfortable and versatile use in any training.
Comprehensive sweat analysis platform based on our own microfluidic sensing. Single-use consumable. Technology patented by Onalabs.
We transform physiological models of sweat and lactate into continuous values, generating interrelatable metrics.
Adjustable and reusable chest strap that integrates the electrodes, to complement sweat readings with heart rate.
| Parameter | Unit | Typical range | Refresh rate |
|---|---|---|---|
| Heart rate (ECG) | bpm | 40 – 220 | 1 s |
| Sweat rate | mL·h⁻¹ | 200 – 2000 | 15 s |
| Sweat loss | L | 0 – 3 | 15 s |
| Sodium (Na⁺) | mM | 20 – 80 | 30 – 40 s |
| Sodium loss | grams | 0 – 5 | 30 – 40 s |
| Sweat-inferred lactate | mM | 1 – 25 | 60 s |
| Dehydration estimate | % body-mass | 0 – 5 % | 15 s |
Note: Sweat biomarkers only appear once sweat reaches the sensor, approximately 5–10 minutes into exercise.
| Feature | Heart-Rate mode | ONAS10 mode |
|---|---|---|
| Sensors active | ECG strap only | ECG strap + ONAS10 |
| Data available live | HR | HR, all sweat biomarkers |
| Battery impact | ≈ +35% longer | Full run-time (≈120 h) |
| Typical use-cases | Pure HR tracking, conditioning | Training, Race Day, hydration planning |
Traditional wearables (Garmin, Apple Watch, WHOOP) track only external metrics like heart rate, movement, and GPS. ONASPORT tracks biochemical markers from sweat—lactate, sodium levels—providing a complete internal load profile.
These biomarkers are provided continuously and remotely, converting them into useful digital biomarkers not offered by any other wearable platform currently.
ONASPORT works best when the body produces a continuous sweat flow for at least 20 minutes.
Ideal scenarios:
*Recreational athletes can still benefit with sessions of around 30 minutes.
Less suitable:
Only one session. ONAS10s interact with your sweat directly, which can distort subsequent measurements. Reusing a card implies inaccurate readings and cross-contamination.
After each session, remove the card by pressing the side latch, let residual sweat drip off, and dispose with regular household waste (RoHS-compliant, no heavy metals).
Standard CR2032 3V lithium coin cell (225 mAh):
| Part | Pack sizes | Replacement interval |
|---|---|---|
| ONAS10 cards | 4-pack | 1 per session |
| Elastic chest strap | Single | 6-12 months / 150 washes |
| Battery-cover opener | Single | Only if lost |
ONAS10s ship with a shelf life of 3 months. Bulk packs qualify for discounted shipping.
| OS | Minimum | Recommended |
|---|---|---|
| iOS | 15.5 | 17.x or later |
| Android | 12 (API 31) | 14 or later |
Older OS versions may encounter failed pairing or sync interruptions.
| Feature | Internet? | Details |
|---|---|---|
| Log-in / account | Yes | Initial authentication |
| Session & live metrics | No | Runs on-device over BLE |
| Firmware update | Yes | Downloaded from CDN |
| Cloud backup / coach view | Yes | Syncs when connection returns |
| Export to CSV | No | Saved locally |
Sessions started offline won't have coach live view. If you lose connection mid-session, data resumes uploading when reconnected.
If stalled >10 min, force-quit app and retry. Remove battery 30s if unresponsive.
Adding too much water can shorten ONAS10 performance.
Prerequisites: Supported Garmin models (Forerunner, Edge, Fenix). Latest ONASPORT App and firmware.
Garmin: Install the ONASPORT Data Field from Connect IQ. Start session in ONASPORT App → tap External Device → start activity on Garmin. Full biomarker + HR metrics display live.
Other devices (Suunto etc.): Pair as HR sensor. HR shows live on watch; all biomarkers saved to ONASPORT App.
Yes. ONASPORT retains all training data. Start on your phone, then leave it behind. Data syncs within 30s when reconnected.
Green dot = uploaded to cloud. Red dot = phone only — tap Sync to retry.
Yes, each athlete pairs their device to their phone. Ensure only one phone scans during pairing. The device can only connect to one phone at a time.
Currently, it is not possible to pause or resume a session.
The device shows "Check the ONAS10 fitting." Sweat metrics stop updating (show last value); HR continues normally.
Do not re-insert the same card — once unsealed it's contaminated. Finish session with HR-only.
Tap Export → CSV. Files named onasport-YYYYMMDDhhmmss.csv. Share to email, Drive, or Dropbox. Coaches can bulk-export via Athlete Portal.
Green dot (cloud): Internet at start/finish; coach live view; stored on EU servers (AES-256).
Red dot (local): No internet needed; stored on phone only; no coach view.
Tap 'Sync' to upload a red-dot session. Deleting account erases cloud copies within 30 days.
Sweat flows across the ONAS10 sensor to a lactate electrode. Lactate ions interact with lactate oxidase producing a measurable current. A trained model transforms this, combined with HR and sweat rate, into delivered sweat-inferred lactate used to monitor internal load.
Open Devices → click device row → Metadata → Assign athlete → tick name → Save. The athlete can start cloud sessions immediately.
Via Onalabs Athlete Portal (organization.app.cloud-onalabs.com) or Web Dashboard (app.onasport.onalabs.com).
Both show 6 biomarkers live. Only the Web Dashboard offers session overlay analysis and Garmin integration.
Yes.
Any dry, dark, cold place. Cards expire 3 months from production date (indicated on package).
Yes. Health regulatory-compliant platform. Passwords never leave the phone in clear text. Onalabs never stores card numbers.
| Role | Can view | Can edit/export |
|---|---|---|
| You (Athlete) | All own sessions | Yes |
| Assigned Coach | Athletes' sessions | Yes (export) |
| Admin | All in organisation | Yes |
| Onalabs Support | Read-only, with consent | No permanent copy |
