Built for athletes who live at the edge, the Coros APEX 4 HR GPS 42mm Multisport Watch redefines what it means to train at your peak. Engineered with Alpine-Grade durability and next-gen tracking precision, this compact powerhouse is made for those who conquer trails, mountains, and open waters alike.

Featuring a dual-frequency GPS system with advanced vertical algorithms and dual-range barometers, the APEX 4 delivers accurate data every time, even in the toughest terrain. Its Memory-In-Pixel display stays crystal clear from sunlight to shadow, while the titanium bezel and sapphire glass ensure rugged protection without the bulk.

Stay connected and in control with a built-in speaker and microphone for calls, voice notes, and real-time alerts. Navigate smarter with detailed global maps, turn-by-turn directions, and lightning-fast rendering speeds up to 30x faster.

From training load to recovery insights, the APEX 4 syncs effortlessly with the COROS App, helping you visualise your goals and track every adventure. And with an impressive 41-hour GPS battery life, you’ll stay powered from start to summit.

Key Features:

• 42mm lightweight titanium case with sapphire glass and reinforced lugs
• Alpine-Grade Engineering: Crafted to withstand harsh outdoor environments
• More Detailed Maps: Global street and trail maps, POIs, and turn-by-turn navigation
• Battery Life: Up to 41 hours in GPS mode (42mm)
• 3D Activity Flyover: Visualise every step of your workout and adventure
• Accurate Data, All The Time: Dual-frequency GPS, vertical algorithms, and barometric sensors
• Speaker and Microphone: Receive pace alerts, voice calls, and create voice-pinned waypoints
• Environments and Weather: Real-time weather forecasts, wind speed, and air pressure
• Memory-In-Pixel Advantage: Always-on display for superior readability in all conditions
• COROS App Integration: Plan routes, track progress, and relive workouts
• Water Resistance: 5ATM, includes a basic depth gauge in open-water mode
• Activity Profiles: Supports a wide range of sports with customizable data screens
• Training Metrics: HRV, sleep, SpO₂, recovery tracking, and race prediction tools

Brand : Coros

Heart Rate Monitor : Inbuilt

GPS Enabled : Yes

Smart Phone Notifications : Yes

Device Type : Navigation

Water Resistance : Water Resistant 5ATM

Battery : Rechargeable

Music Storage : Yes

Dimensions : 42.6 x 42.6 x 14mm

Weight : 56g Silicone Band | 44g Nylon Band

Display

• Size : 1.2 inch
• Display Resolution : 240 x 240 px
• Display Type : 3rd Generation Memory-in-Pixel Touch Screen

Materials

• Screen Material : Sapphire Glass
• Bezel Material : Grade 5 Titanium Alloy
• Cover Material : Fibre Reinforced Polymer
• Band Material : Silicone/Nylon

Watch Band

• Width : 22mm
• Size - Nylon : 135mm - 205mm
• Size - Silicone : 135mm - 205mm
• Installtion Type : Quick Release

Connectivity

• Phone : Bluetooth
• Accessories : Bluetooth
• Data Sync : Wi-Fi/Coros App

Durability

• Water Resistance : 5 ATM
• Working Temperature : -20°C to 50°C
• Storage Temperature : -20°C to 60°C

Battery

• Endurance Mode
  • Standard : 41 Hours
  • All Systems : 11 Hours
• High Mode
  • Standard : 34 Hours
  • All Systems : 10 Hours
• Max Mode
  • Standard : 26 Hours
  • All Systems : 9 Hours
• Daily Use & Sleep Tracking
  • 15 Days
  • Charging Time : Less Than 2 Hours

Memory

• Internal Memory : 32GB
• Active Memory : 1200 Hours

Geo Location

• Satellite Systems : GPS | GLONASS | Galileo | Beidou | QZSS
• GNSS Chipset : All-Satellite Dual-Frequency

Navigation

• Map Layer
  • Landscape
  • Topo

Additional Features

• Checkpoint
• Back-To-Start
• Deviation Alert
• Touchscreen-Enabled Map Control
• Safety Alerts