Engineered for endurance athletes who demand peak performance without added bulk, the COROS PACE 4 Pro pairs top-tier hardware with an ultralight 43g profile.

Featuring the largest, brightest screen COROS has ever built—a 1.47 inch AMOLED display with dynamic LTPO refresh rates — it delivers crystal-clear mapping and metrics under direct sunlight.

Protected by a TC4 titanium alloy bezel and powered by dual-frequency GPS, a multi-channel optical heart rate sensor, and up to 60 hours of continuous GPS tracking, this performance tool is built to handle everything from multi-sport training blocks, triathlon, ultra running to race day podiums.

Key Features

• 1.47 Inch Ultrabright AMOLED Display: High-density display packing over 200,000 pixels for crisp map rendering, fast-glance routing, and high outdoor legibility.
• Sensor Architecture: Advanced Multi-Channel PPG Optical Heart Rate, Pulse Oximeter, Barometric Altimeter, Compass, Gyroscope, Accelerometer.
• Adaptive LTPO Refresh Rate (1-60 Hz): Dynamically scales from a buttery-smooth 60 Hz when panning maps down to 1 Hz to conserve battery power when idle.
• 60 Hours Continuous GPS Battery: Up to 60 hours of active GPS tracking or weeks of daily smartwatch use on a single charge.
• 43g TC4 Titanium Alloy Housing: Machine-engineered titanium bezel provides rugged impact resistance while maintaining a featherlight wrist presence.Dual-
• Frequency Satellite Positioning: Multi-constellation, dual-frequency GPS eliminates signal interference from tall buildings, dense trail canopies, and canyon walls for pinpoint pacing and distance tracking.
• Flush-Fit Multi-Channel Optical HR Sensor: Advanced multi-channel PPG sensor sits flush against the skin to eliminate motion artifacts and deliver accurate heart-rate data during high-intensity intervals.

SPECS

• Weight: 51g (with silicone band) 
• Dimensions: 47.6 x 47.6 x 11.8 mm
• Screen Material: Sapphire Glass
• Bezel Material: Grade 5 Titanium Alloy
• Cover Material: Fiber Reinforced Polymer
• Band Material: Silicone / Nylon
• Water Resistance: 5 ATM (Suitable for surface water activities and not for diving)
• Working Temperature: -4°F to 122°F (-20°C to 50°C)
• Storage Temperature: -4°F to 140°F (-20°C to 60°C)
• Battery - High All System (GPS, GLONASS, Galileo, Beidou, QZSS) - 60 Hours | 45 Hours (with Always-On Display) | 17 Hours with offline music playing
• Battery - Daily Use & Sleep Tracking: 21 Days | 7 Days (with Always-On Display)

• Internal Memory: 32 GB