The COROS PACE Pro combines a high-performance processor, a bright AMOLED screen, and industry leading energy-efficient technology into a compact, lightweight design, creating their most advanced training and racing experience. DESIGN & DETAILS: Vivid 1.3-inch AMOLED touchscreen Fastest in class processor, 2x the speed of PACE 3 38 hours of GPS activity tracking 20 days of daily use and sleep tracking Advanced optical heart rate sensor Downloadable global offline maps