Boost your
Apple Watch

Track hydration and body composition on your Apple Watch with AURA Strap.

US delivery takes 6-8 days.
Check delivery times for other countries here.
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The estimated delivery date for each shipment is based on your location. The average delivery takes from 7 to 20 days.
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Body composition

Bioimpedance analysis allows AURA Strap to measure fat and muscle mass.

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Hydration

Staying hydrated is always important. AURA Strap allows you to track your hydration levels anytime.

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App for Apple Watch and iPhone

The companion app will help you understand your data and set new goals.

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Long life on single charge

AURA Strap uses a replaceable coin battery that lasts up to 6 months with daily measurement.

Know your body
composition

Make a series of measurements after each day's workout to see a trend of your body transformation in the app history.

Bioimpedance is the breakthrough, state-of-the-art technology behind AURA Strap. It is the only way to truly see how your body changes over a day. Body composition analysis focuses on four components: fat, muscle mass, minerals, and hydration. Maximize your fitness activity by seeing how it affects your body.

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Regular body composition tracking will make your workouts and fitness activity much more interactive, because you can see exactly how your body is changing.

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Your goals

With AURA Strap, you can precisely track physical changes and achieve fitness goals. If you want to become stronger, set a target numerical goal in the AURA App. For example, you might want to gain 7 pounds of muscle and lose 4 pounds of fat in a month. Just monitor your body composition every day,track your progress, and adapt accordingly.

This way, you can tell which workouts and activities fit your body best. It will help you achieve your goals faster.

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Bioelectrical impedance vector analysis

Bioelectric Impedance Vector Analysis (BIVA) is a graphic display system developed to simplify interpretation. It uses a coordinate system with tolerance zones to help map hydration, fat, and muscle mass indices.

We conduct this analysis and present results alongside traditional BIA numerical values, percentile curves, and bar graphs. Our system will help you to understand how your body changes after every single measurement.

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Hydration

Our bodies are about 70% water. It makes sense that one of the most important things related to your health is hydration. Water provides mineral elements and even more critical electrolytes. With AURA Strap, you can monitor hydration levels every day, hour, or even more frequently if you want.

You can become dehydrated and not even know, our body does not necessarily signal us about it. AURA Strap suggests when to drink a glass of water based on your activity data and your body’s hydration levels.

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Your data in one app

The AURA App safely and securely stores all fitness data with easy access for the user.

Your goals
Bioelectrical impedance analysis
Hydration
Your data in one app

Easy to use

1

Open the AURA App on your Apple Watch

Supports any Apple Watch from Series 1 or later.

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2

Push-button on the Strap

Works for up to 6 months on a single replacement battery.

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3

Touch electrodes

This creates a circuit allowing measurement to begin.

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4

Wait for 30 seconds

AURA Strap needs stable data about your body’s active and reactive resistance.

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5

See the result

You can now view all your data from the companion app on your Watch and iPhone.

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As seen on

Engadget

Aura squeezes its fitness band into an Apple Watch 'Smart Strap'

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Ubergizmo

If you’re looking for more comprehensive readings, then you might be interested in the Aura Strap which will be able to enhance your Apple Watch experience

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Wareable

It's not a smartwatch, but this add-on band for the Apple Watch could bring some seriously impressive skills to your wristy companion

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Apple Insider

Apple Watch already does a lot between measuring your steps, workouts and heart rate. That doesn't mean there aren't any health metrics left to measure. Enter, Aura Strap!

Learn more

Specifications

  • Features

    Fat / Muscle measurement
    Hydration level tracking

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  • In/Out

    Ultrasound interface for connection to Apple Watch

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  • For everyone

    Unique stainless steel contacts promote comfort for hairy and dry hands
    Adjustable nylon straps for any wrist

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  • Up to 6 months of hard work

    Single standard, replaceable watch battery (CR2025) included
    High water resistance

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  • Syncs with your favorite Watches

    Supports Apple Watch Series 1 or newer and HealthKit
    Companion app for Apple Watch and iPhone

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Package

  • Package

    Includes

    • AURA Strap
    • Coin battery (CR2025 type)
    • Screwdriver for battery replacement
    • Quickstart Guide

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Choose your Size

AURA Strap works both with 38/40 mm as well as 42/44 mm Watches. Get yours right now!

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Buy for $119

AURA Strap measures your body composition and hydration levels on your Apple Watch.

AURA Strap supports Apple Watches Series 1 or newer, and connects with 38/40 and 42/44 mm Watches.

A series of day-by-day measurements provides a trend of your body composition changes. It makes your workouts more efficient, because you can understand (by the numbers) what exercises are definitely good or bad for you.

Yes, AURA Strap measures how much water you have in your body with the help of bioimpedance analysis.

AURA Strap comes in two sizes for 38/40 mm and 42/44 mm Apple Watches. The smaller AURA Strap fits 144 - 200 mm circumference wrists and the bigger fits 150 - 225 mm wrists.

Yes, AURA Strap is water resistant. You can wash your hands, shower and even go for a swim with your device.

The electrodes on each side of the device are made using medical stainless steel (contains nickel).

AURA Strap works for up to 6 months using a standard, replaceable wrist watch battery (CR2025). Simply change spent batteries with the included screwdriver, and it's ready to use.

No, we don't recommend using the device with a pacemaker.

AURA Strap uses high-frequency sound to transfer measured data. We use a microphone on your Apple Watch as a receiver. AURA app only uses it during measurement and doesn't store or process the sound data for any other needs.

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