Compare HeadX Kross and HeadX Duo

HeadX Duo and Kross products with the Duo head strap shown in black.

Compare Kross and Duo

HeadX Kross and HeadX Duo

Both Kross and Duo provide crosshair-laser feedback. Choose Kross for head and neck exercises without an app. Duo adds movement recording, saved sessions and reports.

Within Duo, the current head-strap kit is the neck-focused option. The separate Duo (Multilimb Edition) package is planned for clinicians assessing neck as well as limbs and trunk, with a wipe-clean head strap plus arm, leg and chest straps.

Features at a glance

  HeadX Duo

Laser feedback without an app

HeadX Kross: Included HeadX Duo: Included

App-connected recording and saved results

HeadX Kross: Not included
HeadX Duo: Included

Neck movement tasks

HeadX Kross: Included HeadX Duo: Included

Recorded trunk and limb assessments

HeadX Kross: Not included
HeadX Duo: Included

PDF reports and CSV export

HeadX Kross: Not included
HeadX Duo: Included

Laser feedback without an app

HeadX Kross Included
HeadX Duo Included

App-connected recording and saved results

HeadX Kross Not included
HeadX Duo Included

Neck movement tasks

HeadX Kross Included
HeadX Duo Included

Recorded trunk and limb assessments

HeadX Kross Not included
HeadX Duo Included

PDF reports and CSV export

HeadX Kross Not included
HeadX Duo Included

Choose a Duo pathway

Choose a focused cervical assessment kit or a broader kit that also includes neck, limb and trunk placements.

Current Duo kit

Duo (Neck edition)

For clinicians focused on the neck: range of motion, joint position sense, and stability and control. The included wipe-clean head strap supports a consistent forehead setup.

Explore Duo (Neck edition)

Planned black kit · price to confirm

Duo (Multilimb Edition)

For clinicians assessing neck, upper limbs, lower limbs and trunk. One planned black kit includes a wipe-clean head strap plus arm, leg and chest straps. Price and release timing are to be confirmed; not available to order.

Preview Duo (Multilimb Edition)

Current versus planned

Duo (Neck edition) is the current head-strap kit. Duo (Multilimb Edition) is in development as a separate product that also includes the head strap, plus arm, leg and chest straps; it is not yet available to order.

Illustrative HeadX Duo wrist-mounted shoulder movement scene

What a Duo recording shows

Duo records movement of the body part carrying the sensor, relative to a starting reference. It does not independently measure the angle between two body parts.

Use the same placement, reference and task when comparing sessions.

Explore Duo assessments