Seismograph

Seismograph is the drum recorder: your heart-rate history inked as a red seismic trace across four stacked drum lines on recorder paper, event markers where the rate spiked, a station-log header with the time, and a magnitude table below. Settings let you recolor the accent, toggle wrist-raise seconds, and switch Clean, Standard, or Dense layouts — changes apply instantly, no restart needed. Features: - Signature look: the drum recorder - Shows steps, heart rate, Body Battery, stress, HR history, and watch battery - Burn-in-safe AMOLED always-on layout - Live settings: accent color, seconds, density - Clean/Standard/Dense density modes