Smartwatch with a clear band on a white background

Black smartwatch with digital display on a white background

Person tying a shoe with a watch on their wrist, outdoors.

White smartwatch with a digital display on a white background

Smartwatch with a black band on a white background

Smartwatch with a white band on a white background

Close-up of a black smartwatch on a white background

Smartwatch back view on a white background

Close-up of a white smartwatch on a white background

White smartwatch with a black display on a white background

Coros

Coros Apex 4 GPS Outdoor Watch

~~£429.00~~ £349.00 Sale

Titanium-and-sapphire mountain sports GPS watch with detailed maps and up to 65 hours All-Systems GPS.

Watch Body Colour: White

Black White

Watch Body Size: 42mm

42mm 46mm

Product variants

In stock

Quantity

In Stock | Next day delivery available Free UK delivery over £50

Secure checkout Protected payment

30-day returnsView policy

Key Benefits

Mountain-Ready Materials — Titanium bezel, sapphire glass and reinforced lugs.
Precise Outdoor Tracking — Dual-frequency GPS with mountain-specific algorithms.
Detailed Navigation — Global maps, trail names and turn-by-turn directions.
Two Watch Sizes — 42mm and 46mm versions for different wrists.
Long GPS Runtime — Up to 41h (42mm) or 65h (46mm) All-Systems GPS.

The COROS APEX 4 is designed for trail runners, climbers and mountain athletes who need robust hardware and confident navigation. Its titanium bezel, scratch-resistant sapphire screen and always-on Memory-in-Pixel display deliver a practical combination of toughness and readability across varied terrain.

Dual-frequency satellite tracking, detailed global maps and turn-by-turn guidance help you plan and follow demanding routes. Choose the 42mm or 46mm case to suit your fit and battery requirements, with up to 41 or 65 hours of All-Systems GPS respectively, plus training, sleep and recovery insights through COROS.

Technical Specifications

Sizes & Display

42mm: 1.2-inch MIP screen; 46mm: 1.3-inch MIP screen.

Materials

Grade 5 titanium bezel, sapphire glass and reinforced lugs.

Gps & Navigation

Dual-frequency GNSS; global landscape and topographic maps; turn-by-turn directions.

Battery

42mm: up to 41h All-Systems GPS; 46mm: up to 65h All-Systems GPS.

Weight

44g (42mm) / 51g (46mm) with nylon bands.

Band Width

22mm (42mm watch) / 24mm (46mm watch).

Water Resistance

5 Atm.

Connectivity

COROS app, Wi-Fi data sync and compatible Bluetooth accessories.

Suggested Use & Compatibility

Set-up

Choose the case size and band option before purchase. Pair with the COROS app, load maps and planned routes, and keep the firmware updated.

Activity & Compatibility

Select the appropriate outdoor sport profile and GNSS setting. Attach only appropriately sized replacement straps: 22mm on the 42mm model and 24mm on the 46mm model. Battery life varies with satellite settings, navigation and other features.

Why We Choose Coros

We choose Coros because they design cutting-edge GPS sports watches built for athletes who push boundaries. With a focus on accuracy, battery life, and performance-driven features, Coros empowers runners, cyclists, climbers, and outdoor explorers to train smarter and go further.

Endurance First – Industry-leading battery life to support long training sessions and adventures.
Performance Insights – Advanced metrics for running, cycling, swimming, and more.
Adventure-Ready – Built tough for extreme conditions, from mountain trails to open water.
Athlete Approved – Trusted by elite endurance athletes and world-record holders.

That’s why Coros is part of the North Sports collection — delivering the tools athletes need to reach new levels of performance and adventure.