Inside-Out 6DoF Wrist Motion Tracker

A millimeter-accurate 6DoF wrist tracker. Worn on the wrist, it captures precise wrist poses and every detail of hand movement in real time. Paired with SeerFusion One (Ego), head and hand data are natively aligned in time and space, with the wrist view filling in Ego blind spots. No backpack PC required — wear it and go. Captured data feeds directly into your large model training pipeline.

High-Precision Spatiotemporal Synchronization

Online
VSLAM

Real-time
6DoF capture

Millimeter
positioning accuracy

Millisecond
frame synchronization

Product Advantage

Core Features

Wrist view fills Ego blind spots

The wrist camera fully covers the fingers, palm, and wrist joint. Areas blocked by arms or objects in the Ego's view are objectively and completely recorded by the wrist camera, delivering comprehensive global scene data. The camera's mounting position and optical axis are precisely engineered to keep key hand areas continuously in the field of view.

High-Precision Spatiotemporal Synchronization

Paired with the Ego headset, it achieves millisecond-level time sync and millimeter-level positioning between the head and hand；
The wrist camera and Ego camera record hand operations from different angles. Both data streams are aligned in space and time, with intrinsics and extrinsics unified into a single world coordinate system. Downstream systems can overlay them directly — no secondary alignment needed.

IR fill light: Reliable in near-field and low light

Features a semi-open bracelet-style (C-shaped) IR halo lined with IR LEDs. The LEDs are evenly distributed in 3D space, ensuring at least 4 LEDs remain active in the first-person view regardless of orientation. This eliminates near-field depth blind spots and keeps data usable even in low light.

Hardware-level multimodal synchronization

1x HD RGB camera (1920×1280 @ 60fps, DFOV 170°, global shutter) + 2x fisheye cameras (640×480 @ 30fps, DFOV 172°, global shutter) + 500Hz 6-axis IMU (±8g / 2000dps). The SDK supports hardware-level timestamp alignment between RGB frames and 500Hz IMU data, while synchronously capturing tactile and pose data from connected data gloves.

Compatible with data gloves and Dexterous Hand

Pairs with data collection gloves to synchronously capture visual and tactile multimodal data；
Adapts to robotic dexterous hands for manipulation data collection.

Product Package

SeerFusion Traq
Post Processing Tool Chain