User experience signals to log for mobile observability

Mobile apps often fail in ways traditional backend observability tools cannot detect, creating a 'green dashboard fallacy' where metrics look healthy but users experience jank, slow workflows, and silent failures. The article advocates logging user-experience signals—frame drops with UI-state context (via Android JankStats), intent-to-action workflow latency, and device-level conditions—to pinpoint real-world performance issues. It highlights bitdrift's integration with JankStats for frame-level diagnostics and stresses shifting from reactive crash monitoring to proactive UX signal capture.