Coros | Apex 4 | Multisport Watch

⛰️ The ultimate mountain sports GPS for trail runners, climbers and skiers
The COROS APEX 4 was developed in collaboration with the world's best mountain athletes—featuring ultra-precise GPS, exceptional battery life, zero-lag mapping, a speaker and microphone, and advanced training and recovery tools. All in one titanium watch built for pushing boundaries: training, racing, and crushing personal bests.

The APEX 4 delivers sharp tracking in dense forest, steep couloirs, and alpine terrain. It features turn-by-turn navigation, worldwide topo and landscape mapping, VO2 max data, Effort Pace, ascent metrics, recovery analysis, and new Voice Pins for taking notes on the go. All this in a lightweight and highly impact-resistant titanium design with a sapphire crystal.

Why we are fans ❤️

🏔️ Alpine-grade engineering

• Grade 5 titanium bezel
• Reinforced lugs for durability and comfort
• Sapphire glass + 3rd generation always-on MIP display

📡 Ultra-precise tracking

• Industry-leading GPS accuracy, even in steep and technical terrain
• Vertical GPS algorithms for perfect elevation measurements
• Dual-range barometer for rapid weather changes

🗺️ Super fast cards && navigation

• Landscape and topographic maps (worldwide)
• Turn-by-turn navigation
• Street and trail names
• 30x faster rendering

🔋 Battery that outlasts any ultra

• APEX 4 46mm: 65 hours All Systems GPS
• APEX 4 42mm: 41 hours All Systems GPS
  Perfect for 100-milers, multi-day treks or Mont Blanc routes.

🎙️ Speaker & microphone

• Hands-free calling
• Record Voice Pins on the go
• Audio alerts for training

💤 Training, recovery &readiness

• Training Status, Training Load, Base Fitness
• HRV, daily stress, sleep tracking, Recovery Timer

🏃♂️ Tools for trail runners

• Effort Pace
• 3D terrain view
• Back to Start
• Race prediction
• Running fitness metrics

Specifications

Model
Coros APEX 4 (available in 42 mm and 46 mm)

Materials

• Grade 5 titanium bezel
• Sapphire glass
• Reinforced lugs
• 3rd generation Always-On MIP display

Weight

• 46mm: 64 or 51g (with silicone or nylon strap)
• 42 mm: 56 or 44 g (with silicone or nylon strap)

GPS & sensors

• Ultra-precise GPS
• Vertical GPS algorithms
• Dual-range barometer
• Latest HR sensor

Cards && navigation

• Worldwide Landscape + Topo maps
• Turn-by-turn navigation
• Street and trail names
• 15 m zoom level
• 30x faster map rendering

Battery life (All Systems GPS)

• 46 mm: 65 hours
• 42 mm: 41 hours

Advanced features

• Voice Pins (microphone)
• Speaker for audio alerts & calling
• Effort Pace
• 3D Terrain Views
• Back to Start
• POIs
• Adventure Journal integration
• Lock mode
• Bluetooth synchronization
• Compatible with Strava & Apple Health

In the box

• Coros APEX 4
• USB-C cable not included

Perfect for

• Trail runners who combine long distances and elevation gain
• Ultra runners (100 km/100 miles)
• Mountaineers: ski touring, alpinism, scrambling
• Athletes who want maximum battery during navigation
• Users looking for a titanium, extremely accurate multi-sport watch