COROS APEX 4 GPS Multi-Sport Watch 46mm

Purpose-Built for Mountain Sports

Whether it's chasing a first trail race or linking up multi-day alpine ridge projects, APEX 4 brings precision tools for every goal in the mountains:

• Trail Running – On-device global maps, 3D terrain views in the COROS app, and Effort Pace help you train and race smarter.
• Climbing – Automatic route detection, five climbing modes, a carabiner, and fall detection bring precision to every send.
• Ski Touring – Real-time vertical tracking, topo maps, and live weather data (when connected to your phone) keep you informed on every ascent and descent
• Recovery & Readiness – Track HRV, SpO2, sleep, and training load to give you a 360-degree view of your training and recovery.
• Explore More – With sport modes for hiking, mountain biking, cycling, swimming, and over 30 additional activity modes, COROS APEX 4 adapts to every sport.

What to Know

• Alpine-Grade Design – Lightweight Grade 5 titanium with reinforced lugs, sapphire glass, and a crystal-clear Memory-In-Pixel display designed to perform in sun, snow, and shadows.
• Ultra-Precise Navigation – Enhanced Vertical GPS Algorithms, dual-frequency tracking, and a dual-range barometer deliver the highest accuracy in forests, couloirs, and alpine walls.
• Best-in-Class Battery – Up to 65 hours in All-Systems GPS (46mm) or 41 hours (42mm) — enough to circle Mont Blanc or link the Grand Traverse without charging.
• Zero-Lag Maps – Global topographic and landscape maps with street names render instantly with turn-by-turn navigation, POIs, and street and trail names.
• Sport-Specific Software – Dedicated modes and tools for trail running, climbing, and ski touring, plus advanced training, sleep, recovery, and readiness insights.
• Built-In Voice and Audio Tools – Audible pace and turn alerts, voice notes, and hands-free calling.
• Multiple Sizes – Options for every wrist with 46mm and 42mm case sizes to suit every preference.

Durability in the Details

The fourth-generation APEX introduces significant improvements across both hardware and software. A titanium bezel and sapphire glass combine with an upgraded processor to deliver durability, strength, and the fastest mapping experience in its class. With extended battery life, a new satellite chipset, plus a built-in speaker and microphone, APEX 4 gives athletes confidence that their watch will last the duration of their project, measure their workouts with incredible accuracy, while providing tools to remember the journey.

Click to Download Full Specifications (.pdf)