The COROS PACE 4 Pro packs a TC4 titanium alloy bezel, 3,500-nit 1.47-inch AMOLED display, and 60 hours of GPS battery life into a 38g watch at $449. Training Load, Running Fitness, Pace Strategy, overnight HRV, and full sleep tracking are all built in. USB-C charges it from 0 to 100% in about 1.5 hours, and 30 minutes returns roughly 10 hours of GPS use.