Person wearing a neon-yellow HeadX Duo head-mounted sensor and crosshair laser.

HEADX DUO

Record neck, trunk and limb movement.

A built-in crosshair laser and movement sensor in one wearable unit. The laser provides visual feedback; the HeadX Duo app records range of motion, joint position sense, and stability and control.

Choose a body area to see the available assessments. Save sessions and share PDF reports or CSV data. No subscription.

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Explore the assessments
  • See the movement

    Crosshair-laser feedback provides a live visual reference.

  • Record in degrees

    Capture angular movement relative to your session reference.

  • Review and share

    Save sessions and export a PDF report or CSV data.

Get the HeadX Duo app

Available for iOS, Android and Windows.

A HeadX Duo device is required for live assessments.

INSIDE THE HEADX DUO APP

See exactly what Duo can assess

Choose a body area to see the assessments and example results.

Choose a body area
Choose an assessment
NeckAvailable

Neck range of motion

Set a starting position, then record neck movement in each direction.

How Duo is worn
HeadX Duo headset worn for a cervical movement task

HeadX Duo

  1. Wear DuoFit Duo as shown for the selected assessment.
  2. Record movementSet the reference and follow the app instructions.
  3. Save and shareReview the results, then save or export them.
Assessment movements and tasks

Flexion and extension, left and right rotation, and left and right lateral flexion.

Metrics and results

The saved summary shows the maximum angle recorded in each direction and the combined range where applicable.

Saved sessions, reports and exports

Run an assessment on its own or group assessments into an appointment. Add optional participant and session details, save the record to history and return to the individual summary.

Share an individual assessment PDF or a combined appointment PDF. Structured CSV exports can include session, Range of Motion, Joint Position Sense, Stability and Control, and limb-trial results. Raw sensor CSV is available when Research Mode is enabled.

Duo records the task in degrees for professional interpretation; it does not assign a universal pass or fail score.

What you see in the Duo app

Duo setup and pricing

Contact us about assessments, mounting options or packages. We reply within one working day.

Practical questions, answered

How is Duo different from Kross?

Both Kross and Duo include a crosshair laser for visual feedback. Duo also has a movement sensor in the same unit and connects to the HeadX Duo app to record neck, trunk and limb assessments, save sessions and export results.

Which devices can I use?

The HeadX Duo app is available for iOS, Android and Windows. It connects to Duo over Bluetooth. See the store listings for supported devices and operating-system requirements.

View the App Store listing · View Google Play · View the Microsoft Store listing

Are limb straps and chest mounts included?

The standard Duo kit includes the adjustable head strap. Third-party wrist, limb and chest mounts are sold separately. The mounting guide above shows examples, and we can help you choose the attachment for your assessment.

How do I get started?

Install the app, connect Duo over Bluetooth and choose your body area and assessment. Fit Duo for that workflow, set the session reference, then follow the app prompts to record and review.

Open the fitting and app guide or ask us for a demonstration.

Are the same assessments available for every body area?

Range of Motion is available for the neck, shoulder, elbow, trunk, hip and knee. Joint Position Sense and Stability and Control are available for the neck, with Beta versions for the shoulder and trunk.

Beta assessments are available to use while these workflows continue to be refined. The Explorer identifies them beside each assessment.

Is there a subscription?

No. You pay for your Duo package once, with no HeadX subscription or monthly fee to use the companion app.

Where are sessions stored?

Session data is stored on the device running the HeadX Duo app. Review your history or export a record when you want to share it. Your organisation manages consent, access, backups and exported records.

What support is available?

HeadX can help with fitting, app connection and mounting options. We reply within 1 working day. Duo has a 24-month defects warranty and delivery is free on every order.

Visit Duo support or send an enquiry. See the returns policy for the return conditions.

Skip to product information

HeadX Duo

HeadX Duo

Choose a package and colour for your enquiry. We’ll reply within one working day with availability and ordering details.

Regular price £650.00
Sale price £650.00
Regular price Save Sold out

Price and delivery

Price and tax — United Kingdom

Price including tax
£650.00
Price excluding tax
£541.67
Tax (20%)
£108.33

Delivery after dispatch

UK
1–2 working days
EU
3–5 working days

Delivery is free. Taxes and duties collected by HeadX are shown at checkout. Additional import charges may be payable on delivery.

View full details

Fitting, connection and app guides

Find fitting instructions, connection help, firmware updates and guidance on saved results.