Best energy tracker for coaches

There are roughly 30-50 wearable platforms and apps that claim to track energy or readiness (Whoop, Oura, Apple Watch ecosystem, Garmin), but almost none are built specifically for the coach-athlete workflow. The common failure is that coaches either get overwhelmed by data dashboards designed for individual users, or the insights don't translate into training decisions. Most platforms treat coaches as secondary users—the real gap is the absence of a tool that aggregates team energy data in real time, flags at-risk athletes before practice, and integrates with training management (sets, reps, load). A new vibecoder entering this space should focus on the coach-to-athlete communication layer: simple red-yellow-green status signals, predictive warnings, and one-tap logging that doesn't require athletes to become data scientists. The opportunity lives in simplicity and workflow integration, not more metrics.