Spotlights
Reporting and analysis on the hardware and software of movement, the sensors, models, platforms, and integrations that turn physical activity into data. Coverage stays descriptive and neutral, drawing on documented methods and validation rather than vendor claims.

Why Open Data Schemas Decide Who Can Build
When a workout recorded on one device is unreadable by another, the data loses most of its value. Shared formats and documented APIs are the quiet infrastructure that lets coaches and developers combine streams into one coherent picture.

Spotlight: The Indie Developers Building Coaching Tools
Behind many niche training apps is a single developer mapping device APIs and reconciling timestamps late at night. Their unglamorous integration work is what lets small clubs use data once reserved for pro teams.

The Case for On-Device Machine Learning
Inference that stays on the wearable protects privacy and survives a dead network, at the price of fitting a model into kilobytes. It is a constraint that is reshaping how movement models are designed.

Smart Equipment Moves Sensing Off the Wrist
Instrumented balls, bats, and boards embed sensors into the gear itself, capturing signals a wrist device never could. The form factor opens new metrics and a new set of durability and calibration problems.