IRVINE, CA, October 15th, 2025 – Shaped by years of innovation and proven in the harshest alpine environments, COROS APEX watches have powered victories at the world's toughest mountain races and guided athletes across the most demanding terrain—helping them train smarter, navigate more safely, and move faster. The all-new COROS APEX 4 GPS Watch, available today, sets the benchmark for mountain sports technology yet again. Built for both elite athletes and ambitious amateurs, COROS APEX 4 redefines the category it helped create.

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 a 46mm and 42mm case size 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 the incredible accuracy— while providing tools to remember the journey.

“COROS APEX 4 has undergone rigorous testing, built on years of experience, athlete feedback, and technological advancement to become the premier watch capable of helping the world’s best mountain athletes perform at their highest level,” said Lewis Wu, COROS CEO and Co-Founder. “Every decision behind APEX 4 — from materials to battery life to software — was made with the mountain endurance athlete in mind.”

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 – 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 give you a 360 degree view of your training, and recovery.
• Explore More – With sport modes for hiking, mountain biking, cycling, swimming, and 30+ more activity modes, COROS APEX 4 adapts to every sport.

Availability

COROS APEX 4 is available starting October 15th, 2025 in two sizes (42mm and 46mm), priced at $429 and $479 USD respectively, via COROS.com/APEX4 and select retailers worldwide.

About COROS:

COROS exists to empower athletes with the training tools they need to reach their goals and ultimately bring them closer to the sports they love.

By combining advanced technology with sports science, COROS develops innovative training products for endurance sports, delivering a simple and elevated experience to users around the world.

Along with endurance training, COROS provides outdoor enthusiasts with reliable tools for navigation, tracking, and journaling—helping them explore the beauty of the planet and preserve the moments that make each adventure memorable.