COROS - Apex 4 - Black Silicone
Why We Love It
Built for the mountains, the COROS APEX 4 is the ultimate trail running watch for athletes who live for elevation gain, technical terrain, and long hours on the dirt. From navigating ridge lines to tackling 100 km ultras, it delivers reliability and precision where it matters most. With rugged titanium strength, all-weather durability, and outstanding battery life, it thrives in wild conditions. Every feature feels designed for serious trail runners, accurate GPS in remote terrain, storm alerts before the weather turns, and recovery insights that keep you training smart between climbs.
Talk Nerdy To Me
The COROS APEX 4 pairs alpine-grade toughness with advanced trail technology. Its lightweight Grade 5 titanium bezel and sapphire glass protect a vivid 3rd generation Memory-In-Pixel touchscreen optimised for sunlight visibility on open ridge lines. With 30x faster map and graphic loading than the APEX 2, route navigation feels instant and responsive, even in dense bushland. Dual-frequency GPS ensures accuracy in deep valleys or rugged terrain, while advanced sensors (heart rate, blood oxygen SpO₂, ECG to measure HRV, dual-range barometer, water depth sensor and compass) keep you informed on altitude, effort, and recovery. Trail runners will appreciate storm and altitude alerts, nutrition reminders, and hands-free voice pins to mark key points mid-run, and even take hands-free calls with the built-in speaker. With up to 65 hours of GPS battery life and seamless syncing to Strava, TrainingPeaks, and COROS training plans, the APEX 4 is built to go the distance, wherever the trail leads.
Fast Facts
- Touch-screen display
- 42mm (GPS mode: up to 41 hrs)
- 46mm (GPS mode: up to 65 hrs)
- Dual-frequency GPS precision
- Grade 5 titanium bezel
- Optical heart rate, blood oxygen (SpO₂), ECG (measure HRV) sensors
- Dual-range barometer, water depth sensor, and compass
- Storm and altitude alerts
- Real-time weather, wind speed and air pressure
- Save up to 5 locations for real-time weather viewing
- Weight: 64g
- Wrist size compatibility: 140 – 215 mm (46mm)
- Wrist size compatibility: 135 – 205 mm (42mm)
Original: $546.30
-70%$546.30
$163.89More Images
COROS - Apex 4 - Black Silicone
Why We Love It
Built for the mountains, the COROS APEX 4 is the ultimate trail running watch for athletes who live for elevation gain, technical terrain, and long hours on the dirt. From navigating ridge lines to tackling 100 km ultras, it delivers reliability and precision where it matters most. With rugged titanium strength, all-weather durability, and outstanding battery life, it thrives in wild conditions. Every feature feels designed for serious trail runners, accurate GPS in remote terrain, storm alerts before the weather turns, and recovery insights that keep you training smart between climbs.
Talk Nerdy To Me
The COROS APEX 4 pairs alpine-grade toughness with advanced trail technology. Its lightweight Grade 5 titanium bezel and sapphire glass protect a vivid 3rd generation Memory-In-Pixel touchscreen optimised for sunlight visibility on open ridge lines. With 30x faster map and graphic loading than the APEX 2, route navigation feels instant and responsive, even in dense bushland. Dual-frequency GPS ensures accuracy in deep valleys or rugged terrain, while advanced sensors (heart rate, blood oxygen SpO₂, ECG to measure HRV, dual-range barometer, water depth sensor and compass) keep you informed on altitude, effort, and recovery. Trail runners will appreciate storm and altitude alerts, nutrition reminders, and hands-free voice pins to mark key points mid-run, and even take hands-free calls with the built-in speaker. With up to 65 hours of GPS battery life and seamless syncing to Strava, TrainingPeaks, and COROS training plans, the APEX 4 is built to go the distance, wherever the trail leads.
Fast Facts
- Touch-screen display
- 42mm (GPS mode: up to 41 hrs)
- 46mm (GPS mode: up to 65 hrs)
- Dual-frequency GPS precision
- Grade 5 titanium bezel
- Optical heart rate, blood oxygen (SpO₂), ECG (measure HRV) sensors
- Dual-range barometer, water depth sensor, and compass
- Storm and altitude alerts
- Real-time weather, wind speed and air pressure
- Save up to 5 locations for real-time weather viewing
- Weight: 64g
- Wrist size compatibility: 140 – 215 mm (46mm)
- Wrist size compatibility: 135 – 205 mm (42mm)
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Why We Love It
Built for the mountains, the COROS APEX 4 is the ultimate trail running watch for athletes who live for elevation gain, technical terrain, and long hours on the dirt. From navigating ridge lines to tackling 100 km ultras, it delivers reliability and precision where it matters most. With rugged titanium strength, all-weather durability, and outstanding battery life, it thrives in wild conditions. Every feature feels designed for serious trail runners, accurate GPS in remote terrain, storm alerts before the weather turns, and recovery insights that keep you training smart between climbs.
Talk Nerdy To Me
The COROS APEX 4 pairs alpine-grade toughness with advanced trail technology. Its lightweight Grade 5 titanium bezel and sapphire glass protect a vivid 3rd generation Memory-In-Pixel touchscreen optimised for sunlight visibility on open ridge lines. With 30x faster map and graphic loading than the APEX 2, route navigation feels instant and responsive, even in dense bushland. Dual-frequency GPS ensures accuracy in deep valleys or rugged terrain, while advanced sensors (heart rate, blood oxygen SpO₂, ECG to measure HRV, dual-range barometer, water depth sensor and compass) keep you informed on altitude, effort, and recovery. Trail runners will appreciate storm and altitude alerts, nutrition reminders, and hands-free voice pins to mark key points mid-run, and even take hands-free calls with the built-in speaker. With up to 65 hours of GPS battery life and seamless syncing to Strava, TrainingPeaks, and COROS training plans, the APEX 4 is built to go the distance, wherever the trail leads.
Fast Facts
- Touch-screen display
- 42mm (GPS mode: up to 41 hrs)
- 46mm (GPS mode: up to 65 hrs)
- Dual-frequency GPS precision
- Grade 5 titanium bezel
- Optical heart rate, blood oxygen (SpO₂), ECG (measure HRV) sensors
- Dual-range barometer, water depth sensor, and compass
- Storm and altitude alerts
- Real-time weather, wind speed and air pressure
- Save up to 5 locations for real-time weather viewing
- Weight: 64g
- Wrist size compatibility: 140 – 215 mm (46mm)
- Wrist size compatibility: 135 – 205 mm (42mm)






















