Train harder, climb higher, and explore further with the ultimate rugged GPS watch built for peak performance, epic adventures, and unstoppable athletes.

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, SpOâ‚‚, recovery tracking, and race prediction tools

Brand : Coros

Model # : WAPX4-42mm

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

Shipping Options

Free shipping on orders over $100 to Australia & NZ*
Shipping on small orders (under $100) only $9.95
Express shipping to Australia & NZ only $15

Standard Shipping (AU/NZ) – FREE on orders over $100 and $9.95 on orders under $100. Orders are dispatched within 1 business day. Click here for shipping delivery times

Select ‘Standard Shipping – Auspost Only’ if you would prefer your parcel is sent with Auspost. Otherwise it will be shipped with any of our available carriers. Auspost Only shipping is not available on some very heavy/bulky orders.

Express Shipping (AU/NZ) – Need it faster? Express Shipping is available for $15. Express Shipping is not available on heavy/bulky orders. Orders placed before midday on business days are usually dispatched same day (otherwise within 1 business day). Delivery times in the table below.

Click and Collect – Shop online and collect in our Milton, Brisbane store, free for all orders. Orders are usually ready within 2 hours (during opening hours). Click here for address and opening hours.

Terms and conditions apply, click here for a full overview of our shipping policies

2 Year limited warranty on watches from Coros Australia.

Returns and Warranties at a Glance:

  • If you have selected the wrong product/size for you, or want to exchange/return for any reason except for warranty or our error, this is referred to as a 'change of mind' return.
  • Not all products are eligible for change of mind returns (click here for excluded products). Final Clearance products are not eligible for change of mind returns.
  • Once you submit a Return Request, we will provide return instructions via email (along with a prepaid return label if applicable). Please wait to receive this before returning any items (Try 2 Anything excluded)
  • Change of mind returns can be resolved by your choice of exchange, full store credit, or a refund. Refunds are subject to a $19.95 admin fee.

For a full overview of our returns and warranty policies, see Returns and Warranties

Be The First To Review This Product!

Help other Wildfire Sports & Trek users shop smarter by writing reviews for products you have purchased.

Write a product review

Others Also Bought

More From This Category