Micro-gesture scoring
Use wrist gestures to score for your side, score for the opponent, and undo the latest point.
More court-friendly than tapping through watch screens.
Feature details
Yujie is not a pile of features. It is one usable badminton flow.
From match start and on-court input to swing detection, review, history, CSV export, and HealthKit sync, the product is organized around one complete session lifecycle.
Continuous session capture
Record IMU data, heart rate, score timeline, and key state changes while you play.
The goal is a complete match record, not a decorative dashboard.
Swing count & peak swing speed
Track valid swings and follow peak swing speed through the session.
Useful for quickly checking how much and how hard you played.
Load & heart-rate review
Combine heart rate, movement intensity, and swing density into a practical load summary.
Review intensity with context instead of staring at a single number.
History trends & personal records
Use the iPhone to review recent trends, session summaries, and progress.
Turn scattered sessions into a training timeline.
CSV export & HealthKit sync
Export to spreadsheets and sync into the Apple health ecosystem.
Data should be useful outside the app too.