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THE NAESIA SYSTEM

Designed to disappear. Built to reveal.

The NAESIA concept combines a replaceable sweat-sensing cartridge, reusable electronics and an app. Wear it during exercise to collect local measurements and explore estimated losses across the session.

Explore the system
NAESIA design concept: a compact white reader on a navy strap above a transparent disposable cartridge
Future wearable design concept · illustrative render
Consumer concept: transparent cartridge with a serpentine reservoir
Disposable cartridge concept · simplified channel geometry

01 / THE SENSING CARTRIDGE

Fresh sweat. A fresh sample.

An adhesive inlet collects sweat from a small area of skin. Inside the cartridge, sodium-selective and reference electrodes read the local sample. A serpentine channel guides incoming sweat while a vent lets displaced air escape. Dry contact pads connect the cartridge to the reader.

  • Skin adhesive and defined sweat inlet
  • Sodium/reference interfaces and separate dry pads
  • Serpentine microfluidic channel and air vent
  • A fresh cartridge for every measured session
Conceptual white rechargeable reader with a compact shell and navy textile strap
Reusable reader concept · no production specifications implied

02 / THE REUSABLE READER

Precision, without the bulk.

The reader contains the rechargeable electronics and Bluetooth connection. Spring contacts read sodium and reference signals from the cartridge’s dry pads. Sensors in the reader detect liquid advancing through the nearby channel. Replace the cartridge after a measured session and keep the reader for the next one.

  • Reusable electronics and Bluetooth Low Energy
  • Spring contacts connect to the cartridge’s dry pads
  • Flow sensing stays with the reusable reader

03 / THE COMPANION APP

Your workout. From start to finish.

The app combines local sweat measurements with athlete and workout information to estimate whole-body fluid and sodium losses. Save a session, compare it with earlier workouts and use the results to support training and recovery planning.

Cartridge

Collect & sense

Reader

Process & connect

Smartphone

Model & visualise

Sweat insights

Understand & compare

Step inside the app

DESIGNED AROUND YOUR WORKOUT

Before. During. Beyond.

BEFORE

Make it part of your routine.

Fit a new cartridge, attach the reader and connect the app. Add your athlete details and workout information.

DURING

Follow the session.

Train as usual while viewing local sodium concentration and estimated whole-body fluid and sodium losses.

AFTER

Bring context to recovery.

Review estimated losses alongside logged intake to support hydration and electrolyte planning. Save the session, replace the cartridge and recharge the reader when needed.

EXPLORE NAESIA

Get to know your sweat.

See how the wearable concept could fit into your training.

Discover the ProductExplore Early Access

TRANSPARENCY, BY DESIGN

Privacy & concept

NAESIA is in development. This website presents an intended future product, with simulated app data and session comparisons. Product renders and running imagery illustrate the concept; they are not photographs of current hardware.

The concept assumes successfully validated whole-body estimation models. It does not present current study results, accuracy claims or certifications. Local measurements and model-derived estimates are labelled separately.

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Early-access registrations are stored separately, with the interests and consent choices you select. Campaign labels may be included, as explained beside that form. Receipt emails are separate from marketing consent. With your separate permission, MailerLite handles newsletter verification and subscriptions. Newsletters start only after email confirmation; you can unsubscribe at any time. Pilot interest alone does not subscribe you to marketing emails. The STRATO server keeps encrypted, limited-lived follow-up and consent records, with hashed abuse-prevention counters. To request removal, email contact@naesia-hydration.com.