ONASPORT

Lactato inferido en sudor
Identifica tus umbrales de esfuerzo mediante una prueba incremental, determinando con precisión la transición aérobica-anaeróbica
Un test incremental adaptado para ONASPORT sin parones ni interrupciones.
Próximamente:
Estamos trabajando para ofrecerte datos fiables en cualquier entrenamiento, sin protocolos, para que puedas controlar la intensidad a partir de tus datos fisiológicos

Deshidratación
Mide con precisión la pérdida de fluidos para elaborar una mejor estrategia de reposición. Con nuestra plataforma de medición del sudor somos capaces de ayudarte a optimizar tu rendimiento mientras controlas tu salud
- Medición en continuo

Tasa de sudoración
Cuantifica la cantidad de fluido perdido en relación al tiempo.
Además de cuantificar la variación en la sudoración según el entorno climático, podrás complementar tu estrategia de reposición de fluidos, adaptada a las condiciones climáticas de cualquier objetivo que tengas
- Medición en continuo

Pérdida electrolítica
Ofrecemos lecturas continuas del sodio excretado y de su concentración en tu sudor, aportándota aún más información sobre tu adaptación al entorno.
Junto a los demás biomarcadores, obtendrás mucha más información que antes sobre tu rendimiento en un medio concreto
- Medición en continuo

Frecuencia cardíaca
Todo adaptado al estándar actual de la monitorización deportiva, a través de nuestra cómoda banda pectoral.
Lo hemos pensado todo para brindarte una visión 360º sobre lo que ocurre dentro de ti.
Un entorno digital adaptado a tus necesidades

App
Conéctate a ONASPORT desde tu Smartphone y analiza minuto a minuto los datos de tu sudor, para tomar mejores decisiones durante el ejercicio. Conotrola tu rendimiento como nunca antes lo habías hecho.
Onalabs Athlete Portal
Plataforma desarrollada para que puedas visualizar todos tus datos de forma conjunta, analizar métricas, e identificar correlaciones existentes. Sobrepone los datos de tu sudor y de tu Garmin en un solo gráfico.
Podrás también analizar en tiempo real o posteriormente el rendimiento de un grupo de atletas. Gestiona y compara de manera sencilla a tu equipo desde una sola interfaz.
Conexión con otros dispositivos
Conecta ONASPORT directamente con tu dispositivo Garmin para poder ver los datos en tiempo real en tu reloj o ciclocomputador.
Próximamente: Integración con otras marcas
¿Para quién es ONASPORT?

Clínicas y centros de medicina del deporte
Realiza pruebas de esfuerzo y rendimiento incorporando, en muy poco tiempo, un análisis preciso de lactato inferido en sudor.
La agilidad de ONASPORT para obtener y estrucutrar grandes volúmenes de datos fisiológicos facilita a los centros el elaborar conclusiones más completas y personalizadas, optimizando así la evaluación del estado físico y el seguimiento de la evolución de cada deportista.
- Monitorización fisiológica sin extracciones sanguíneas
- Reducción de costes y tiempo en pruebas de esfuerzo
- Fácil de usar tanto en laboratorio como en campo.
Conclusión: un mejor servicio médico-deportico, aumento de la qualidad asistencial, y optimización de recursos.

Deportistas
Diseñado para deportistas de todos los niveles, desde el mejor del mundo hasta el que está empezando.
Optimiza tus entrenamientos, estado de hidratación, y estratégia de reposición de liquidos. Establece ts propios umbrales de esfuerzo y entrena como los atletas de primer nivel.
- Lecturas continuas en cada entrenamiento
- Elimina las pruebas invasicas
- Sigue tu evolución con informes detallados
- Un solo dispositivo para entrenar y evaluar
Resultado: una preparación óptima para competir, cuidando tu salud y manteniendo un control total sobre tu rendimiento.

Clubes, centros de entrenamiento y entrenadores
Gestiona grandes volúmenes de datos fisiológicos de forma estrucutrada.
Esta capacidad de monitorización colectiva, facilita comparativas entre deportistas, segmentación por grupos, y control de la carga interna a nivel grupal. Además, Onalabs Athlete Portal está adaptado para desarrollar proyectos de I+D, ofreciendo así un soporte para estudios longitudinales
- Detección precisa de umbrales y deshidratación
- Comparativas sencillas entre sesiones y deportistas
- Recursos visuales para transmitir mejor el progreso a un atleta
Resultado: mejor rendimiento de los atletas, fidelización, y prestigio profesional.
Tu primer informe de sudoración
Te proporcionamos datos clave sobre tu rendimiento de forma automatizada:
A través de un test incremental, analizamos tu tasa de sudoración, concentración de sodio, y umbrales de lactato.
Con esta información elaboramos un documento personalizado con recomendaciones para que puedas optimizar tus entrenamientos de forma sencilla.
Los componentes de ONASPORT
ONASPORT
Miniaturized instrumentation that integrates all our technology and connectivity ensuring comfortable and versatile use in any training

ONAS10
Comprehensive sweat analysis platform based on proprietary microfluidic sensorics Single use consumable Patented technology by Onalabs

Algorithms
We transform sweat and lactate physiological models into continuous values generating interrelated metrics

Chest strap
Adjustable and reusable chest strap that integrates the electrodes to complement sweat readings with heart rate

Partners estratégicos:




Product Overview & General Use
What parameters does ONASPORT measure?
Parameter | Unit | Typical range | Refresh rate* |
| Heart rate (ECG) | bpm | 40 – 220 | 1 s |
| Sweat rate | mL · h⁻¹ [L] | 200 – 2000 (0 – 3) | 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.
What is the difference between Heart Rate only mode and ONAS10 mode?
- Heart Rate Mode: The strap is used to monitor heart rate through an ECG signal, but no sweat data is collected.
- ONAS10 Mode: Requires both the strap and sweat decoding card ONAS10; full biomarker tracking enabled.
- Recommend Heart Rate Mode for casual sessions; ONAS10 for complete data sessions.
Feature | Heart-Rate mode | ONAS10 mode |
Sensors active | ECG strap only | ECG strap + sweat decoding card ONAS10 |
Data available live | HR | HR, all sweat biomarkers |
Battery impact | ≈ +35 % longer run-time (no sweat decoding card ONAS10) | Full run-time (≈120 h) |
Typical use-cases | Pure HR tracking, day-to-day conditioning, and an indoor bike | Everyday training, Race Day, lab lactate replacement, hydration planning |
How does ONASPORT differ from traditional wearables?
Traditional wearables (e.g., Garmin, Apple Watch, WHOOP) track only external or conventional vital sign metrics, such as heart rate, movement, and GPS. Instead, ONASPORT tracks biochemical markers based on sweat, such as lactate or sodium levels.
As heart rate data is also provided, a whole profile of biomarkers related to the internal load of the athlete can be built. Furthermore, these biomarkers are provided continuously and remotely, converting them into useful digital biomarkers not offered by any other wearable platform currently.
Is ONASPORT suitable for all types of athletes?
ONASPORT works best when the body produces a continuous sweat flow for at least 20 minutes. We can monitor all kinds of people, irrespective of the amount of sweat they generate.
Ideal scenarios:
Endurance sports like
Running (road running, trail running, track running)
Cycling (Road cycling, Gravel cycling, MTB cycling)
Triathlon
Nordic skiing
Field and court sports, such as soccer, basketball, rugby, and tennis, where coaches track multiple athletes.
*Recreational athletes can still benefit, provided they meet the minimum session length and sweat production requirements, which is around 30 minutes.
Less suitable:
Cold weather (<10 °C) with short bursts, where sweat never forms a film.
HIIT and CrossFit-style sessions.
Gym training and short session sports.
Sprint events under 2 minutes where biochemical lag makes feedback less actionable.
Users with implanted pacemakers or ICDs (consult your physician first).
What's in the Box
How many times can the ONAS10 be used?
Only one session. ONAS10s interact with your sweat directly for measurements, which can distort any new measurements performed in subsequent sessions. Besides, the adhesion to both skin and the ONASPORT device can be compromised. Therefore, reusing a card implies inaccurate readings and cross-contamination.
After each session, remove the card by pressing the side latch, let any residual sweat drip off, and dispose of it with regular household waste. (The polymer is fully RoHS-compliant and contains no heavy metals.)
What type of battery does the device use?
ONASPORT runs on a standard CR2032 3V lithium coin cell (225 mAh nominal):
Typical life: 130 hours in ONAS10 mode; 210 hours in Heart Rate (HR) mode; 270 days in sleep mode.
Replacement: Twist the battery cover ¼ turn counterclockwise using the supplied tool, ensuring the “-” polarity faces upward. Then, twist it back to secure it in place. A gentle click confirms proper seating.
Safety: Coin-cell batteries can be harmful if swallowed. Keep spares and used cells out of reach of children and dispose of them at designated battery-recycling points.
Are replacement ONAS10s and straps available?
|
Part |
Pack sizes |
Typical replacement interval |
|
ONAS10 cards |
4-pack |
1 per session |
|
Elastic chest strap |
Single |
6-12 months or 150 washes |
|
Battery-cover opener tool |
Single |
Only if lost* |
App & Technical Requirements
Where can I download the ONASPORT app?
|
Platform |
Direct link |
|
iOS |
apps.apple.com/app/onalabs-onasport |
|
Android |
play.google.com/store/apps/details?id=com.onalabs.sport |
Which iOS and Android versions are supported?
|
OS |
Minimum version |
Recommended |
|
iOS |
15.5 |
17.x or later |
|
Android |
12 (API 31) |
14 or later |
Does ONASPORT work without an internet connection?
|
Feature |
Needs internet? |
Details |
|
Log-in/account creation |
Yes |
Initial authentication via secure API |
|
Starting a session & live metrics |
No |
Everything runs on-device and over BLE |
|
Firmware update |
Yes |
Files downloaded from Onalabs CDN |
|
Cloud backup/coach live view |
Yes |
Data syncs once Wi-Fi/LTE returns |
|
Export to CSV |
No |
File saved locally; can be shared later |
Initial Setup
How do I register and create an account?
Creating an account allows you to unlock all the ONASPORT features.
Install the ONASPORT app and tap Create account.
Scan the QR code on the back of the box to access the Registration code.
Enter first/last name, email, sex, date of birth, weight (kg), height (cm), country, email id, an 8-character password (must include 1 uppercase, 1 lowercase, 1 number, and one symbol), and confirm the password.
Read and accept the Informed Consent and Privacy Policy checkboxes.
How do I pair the device and update firmware?
Enable Bluetooth (on iOS and Android) on your phone.
Open the app → Start training; the ONAS10 appears within ~5 s.
Tap the sensor tile → Pair
If “Firmware update available” appears, tap “Update now.” Keep the phone within 3 meters and the screen awake.
A progress ring displays 0% → 100%; the device reboots, and the app shows “Firmware update successful.”
Troubleshooting: If the update stalls for more than 10 minutes, force-quit the app, reopen it, and then repeat the update process. Remove the battery for 30 seconds only if the device is unresponsive.
How do I insert the ONAS10?
Wash your hands and open the plastic packaging just before training.
Remove the protective covers from the sensors, located at the bottom of the ONAS10.
Hold the ONAS10 with the arrow up and facing the strap.
Slide the card into the slot until you feel and there is a visible mark – this closes the spring latch and seals the micro-channels.
A colour mark indicates the ONAS10 is fully inserted.
Do not remove the card mid-session; doing so irreversibly stops sweat data collection.
Tip: Keep the packaging with you in case of a problem with any ONAS10s while inserting.
How do I start the first training session?
Place the battery in the device using the opener provided. Make sure the positive side (+) of the battery is facing up while inserting the battery.
Remove the protective cover from the sensors located at the bottom of the ONAS10.
Slide the ONAS10 onto the ONASPORT device.
Peel off the skin protective cover.
Open the app → Start training → Fill in all the information about User Data, Measurement Mode and Activity Type
Warm up for 5-10 minutes – this helps activate your sweat glands.
Add a water droplet carefully using your finger on the ONAS10 inlet. (Make sure to press the ONAS10 card directly to your skin)
Hit Start before warmup; HR appears immediately, and sweat fields show “––” until the channels fill (~ 5-10 minutes).
After training, press Finish → Save, and a green cloud icon shows successful upload.
Remember: Removing the card or battery mid-session permanently ends sweat data collection for that session. Start a new one if this happens accidentally.
Training & Device Use
How to make sure the sweat metrics appear from the beginning?
Sweat-based parameters require activation time: the micro-channels inside the ONAS10 must be filled before the electrochemical sensors can read them. To activate it, follow the instructions:
First, finish pairing the device with your ONAS10.
Next, tap a small droplet of water into the ONAS10 inlet with your fingertip; activation typically starts within 5 – 10 minutes.
Finally, launch your workout with a warm-up.
Remember: Adding too much water to the ONAS10 inlet can lead to filling the channel and shortening the duration of the ONAS10’s performance.
How to set up a Garmin Data Field?
Prerequisites
Supported Garmin models: Forerunner, Edge, Fenix.
Update to the latest ONASPORT App and device firmware.
1) Download the ONASPORT Data Field
Open the Garmin Connect IQ Store.
Search “ONASPORT” → Install and accept the terms.
2) Configure the Data Field
Open the Garmin Connect IQ app on your phone.
Go to My Device Apps → ONASPORT → Settings → Connectivity.
Tap Name and enter your device’s advertising name in the format ONASXXXX (case-sensitive).
Find this on the box label or engraved on the device (top-right of the back).
Note: Only the device you add here will connect to Garmin.
3) Sync to your Garmin
In Garmin Connect, press Sync with your watch/cycling computer nearby and connected.
4) Add the Data Field to an activity
On your Garmin: Activities → Activity Settings → Data Screens.
Add New Screen → Custom Layout → choose a full-screen layout (required).
Select Connect IQ → ONASPORT.
Start your activity on Garmin and a session in the ONASPORT App, full sweat & performance metrics will show live, and the complete dataset will sync to the App after finishing.
Can I broadcast data to my Garmin (and other devices)?
Garmin: full ONASPORT metrics (recommended)
Update the ONASPORT App and device firmware.
Install the ONASPORT Garmin Data Field from Connect IQ and add it to your activity profile.
In the ONASPORT App: Start Training Session → complete athlete/data → choose measurement mode → select your device → tap External Device.
On your Garmin, start the activity. You’ll see full ONASPORT metrics (biomarkers + HR) on the data field in real-time.
Finish: end the activity on the watch; in the App, be on the live screen (rejoin if needed) and tap Finish to sync & save all data.
Note: Garmin does not pair ONASPORT as a standard HR sensor—use the Data Field method for live biomarker display.
Other devices: heart rate broadcast (biomarkers saved to App)
Start the session in the ONASPORT App (External Device) so the device records all biomarkers.
On Suunto: pair as HR sensor (Settings → Connectivity → Pair Sensor → HR Sensor).
During the session Suunto shows HR live; after, Finish in the App to sync full data.
Can I train without my phone?
Absolutely:
Even if you are not connected to your phone, ONASPORT still retains all your training data. You need to start the training session on your phone, leave it behind, and only bring it with you if you want to check the live data.
Once the phone reconnects (e.g., at the café stop or back in the locker room), all queued data syncs within 30 seconds, then uploads to the cloud if you’re logged in.
On the session list, a green dot indicates that the file has been uploaded to the cloud; a red dot means it’s still only on the phone—tap Sync to retry.
Caution: If you finish the session while the phone is offline and has no internet connection, any unsynced data will be saved in the phone and can be retrieved whenever you press sync. Whereas, if you finish a session while the phone has lost the Bluetooth connection, any unsynced data will be lost.
Can I use multiple ONASPORT devices in a team session?
Yes, each athlete pairs their device to their phone:
Pairing discipline: Ensure only one phone has Bluetooth scanning enabled during each athlete’s pairing step to prevent cross-bonds.
Coach view: The web dashboard lists all athletes and displays their live or finished sessions once each sensor is assigned to them in Devices ▸ Metadata ▸ Assign Athlete.
If an athlete borrows a spare sensor, the data will only be uploaded to the cloud if the coach has reassigned that device before starting the session.
Warn athletes that even though multiple BLE pairings are supported, the device can only be connected to one phone at a time.
Can I pause or resume a session?
Currently, it is not possible to pause or resume a session.
What happens if the ONAS10 falls out?
The device detects poor contact and shows “Check the ONAS10 fitting”, from that moment:
Sweat-based metrics stop updating and will show the latest value for the rest of the session.
Heart-rate data continues normally.
Do not re-insert the same card, as once unsealed, it’s contaminated.
Finish the session and record HR-only metrics.
If the connection has worked for some time before losing contact, collect the metrics that have been updated till the connection is lost.
Dispose of the used card in the general waste bin, as the polymer is RoHS-compliant.
Data & Visualization
How do I view my session after training?
Open the app → Training History tab and the newest recording is displayed at the top.
Tap the session card to open the Summary view:
Header tiles – Cloud syncing, Session type, Measurement mode, Activity type, Device number, Date and Time of activity start, Duration of training, Sweat Lost (in L), and Sodium lost (in g).
Interactive graphs – swipe down to switch between sweat inferred lactate, heart rate, sweat rate, sweat loss, sodium, sodium loss, and dehydration. Long-press to place a cursor.
Option of exporting the session in CSV format at the bottom of the screen.
How do I export or share my data?
At the end of the session summary, tap Export → choose CSV.
CSV – raw 1 Hz rows; the header row explains every column.
File names follow the pattern onasport-YYYYMMDDhhmmss.csv, allowing them to be sorted by date.
You can share directly to email, Drive, or Dropbox.
Coaches on the Onalabs Athlete Portal can bulk-export the resumes of all athletes at once.
What’s the difference between cloud and local sessions?
Aspect | Cloud session (green dot) | Local session (red dot) |
Account required | Yes | Yes |
Internet required | Only at session start and finish (upload) | Never |
Firmware updates | Enabled | Enabled |
Coach live view | Yes (only if internet is available) | No |
Export formats | CSV only | CSV only |
Data retention | Onalabs servers (EU, AES-256) | Your phone storage |
Switching a red-dot session to the cloud later is as simple as tapping ‘Sync‘ (only if the session was started with an internet connection and a linked device). Unsubscribing or deleting your account will erase cloud copies within 30 days; local files will remain until you manually delete them.
How is Sweat-Inferred Lactate estimated?
The sweat decoding card ONAS10 utilises a lactate sensor to detect sweat-inferred lactate.
Sweat enters the sensor and flows across the channel until it reaches the lactate sensor.
The lactate ions in sweat interact with lactate oxidase, which is deposited in an electrode layer.
This reaction produces a byproduct that can be measured as an electric current.
A trained model transforms the sweat lactate value and other biomarkers like heart rate and sweat rate into the delivered sweat-inferred lactate.
This value is used to monitor the internal load and to identify inflection points in guided incremental protocols.
Coach & Group Features
How do I assign devices to athletes?
Assigning a sensor’s serial number to an athlete account allows new sessions to upload to the cloud (green dot), although old local sessions won’t be changed to the cloud.
Dashboard workflow
Open Devices in the sidebar.
Click the device row → Metadata tab.
Press Assign athlete → tick the correct name → Save.
The athlete can now start cloud sessions immediately.
How can coaches monitor live sessions?
Coaches can monitor their athletes in real time through two platforms: Onalabs Athlete Portal and the Web Dashboard. Both platforms display real-time data, provided that the user has established a connection between the ONASPORT device and their phone, and the phone is connected to the internet.
Main differences:
Both platforms display graphs for the 6 biomarkers: Heart Rate, Sweat Loss, Dehydration, Sodium, Sodium Loss, and Sweat-Inferred Lactate.
Both provide information on the users and devices assigned to the coach
Only the Onalabs Athlete Portal allows the creation of new users linked to the team
Both platforms allow linking and unlinking devices to/from users.
Only the Web Dashboard offers in-depth session analysis, including features like overlaying measurements, assessing session metrics, viewing athlete recaps, etc., and allows integration with external platforms (e.g., Garmin)
To monitor a live workout in the Onalabs Athlete Portal:
Log in at: https://organization.app.cloud-onalabs.com
Click Users.
Select the athlete and press Expand.
Go to Training Sessions and click on the current session.
Press Expand again and click See Measurements in the top-right corner.
Click the icon in the bottom-right corner of any measurement to view the latest data.
To monitor a live workout in the Onalabs Athlete Portal:
Log in at: https://app.onasport.onalabs.com
Click Athletes.
Select the ongoing training session.
Refresh the page periodically to see the latest measurements.
Can I share data with third-party platforms?
Yes. Currently, CSV export is the only way you can share data. Check the following table for more information:
Method | What’s shared | How | Use-case |
CSV export | Any session | Session Summary → Export | Import into Excel, etc. |
Battery & Maintenance
How long does the battery last?
Typical life: Around 130 hours in ONAS10 mode and 210 hours in Heart Rate (HR) mode on a fresh CR2032 lithium 3 V coin cell.
Stand-by: < 2 % than training in sleep mode so that it could last up to 270 days.
Low-battery warning: When the voltage drops below 2.4 V, the app displays the message “Replace battery.” You still have 2 hours of runtime to complete the current workout.
How should I clean and store the device?
Wipe-down: Damp cloth, no alcohol or solvents; avoid water ingress into the sweat connectors.
Drying: Remove the sweat card first. Let the sensor air-dry at room temperature – never use hair dryers or heaters.
Magnet caution: Keep away from strong magnets (such as speaker grills) that could interfere with the ECG input.
Storage: A cool, dry place, 0–40 °C. Store the device separately from the strap to allow for complete evaporation of moisture.
Can I use the device in extreme temperatures?
|
Range |
Recommendation |
Possible impact |
|
-20 °C – 10 °C |
Warm up longer to form sweat, but battery capacity is shorter. |
HR OK; sweat activation slower. |
|
10 °C – 60 °C |
Full spec; no restrictions. |
– |
|
> 60 °C |
Not allowed (saunas, steam room, inside a parked car in summer, cryotherapy). |
– |
Where should I store the ONAS10s?
Location: Any dry, dark, and cold place.
The sweat cards expire 3 months from the production date, as indicated on the package.
Account, Security & Legal
Is my data safe when stored in the cloud?
Our data repository platform, which has all the health regulatory standards, safely holds all the sessions.
Passwords never leave the phone in clear text and must adhere to the minimum complexity rules enforced at sign-up (≥ 8 characters, including upper, lower, number, and symbol).
Onalabs never stores card numbers. We collaborate with suppliers who, in turn, are responsible for storing this information.
Who has access to my data?
|
Role |
Can view |
Can edit / export |
|
You (Athlete) |
All of your own sessions |
Yes |
|
Assigned Coach |
All of his athletes’ sessions |
Yes (export) |
|
Admin |
All athletes in the organisation |
Yes |
| Onalabs Support | Read-only, with user consent |
No permanent copy |
What happens to my data if I unsubscribe?
The profile and cloud files are queued for erasure; the purge will be completed within 30 days (GDPR Article 17).
Sessions stored locally on any of your phones remain until the app is deleted or you manually remove them.
Files already exported (CSV) or shared with coaches are outside Onalabs’ control. Coaches are instructed to respect your deletion request but must remove those copies themselves.
The device itself is unaffected; you can pair it to a new account at any time.
Where can I get help or file a warranty claim?
|
Channel |
How to reach it |
Typical response-time |
What to prepare |
|
E-mail support |
support@onalabs.com |
24 hours |
Attach photos (device, error screenshots), |
|
In-app “Support” shortcut |
Home screen → ︙ Settings ▸ Support |
24 hours |
Attach photos (device, error screenshots), |
|
Phone hotline (EU only) |
Contact details are on the app |
Immediate |
Have your ticket number ready |

