Same 2.2-mile loop in Reno I’ve been walking for weeks. Same Card 3 I tested back on April 11. 80 more active calories burned today. Here’s what changed — and where the idea came from. The Apple Watch Numbers — Card 3, Round Two Same card. Same route. Different walk. My Apple Watch Ultra caught the difference clearly.   Apple Watch workout summary — April 28, 2026. Mile splits: Mile 1 — 119 BPM. Mile 2 — 125 BPM. Final stretch — 129 BPM. The strength stops were stacking again. By the end of the walk my body was working noticeably harder than at the start. The Full Series —…