OS GPS for Walking

Hiking, walking & running
OS GPS range

OS Trail GPS

OS Trail GPS Logo

Large-screen handheld GPS with advanced navigation




OS Aventura GPS

OS Aventura GPS Logo

Large-screen handheld GPS with advanced navigation and superior battery




OS GPS mapping

World-renowned OS mapping

Explore Great Britain using our extremely detailed and highly accurate Ordnance Survey maps, including OS Landranger 1:50k GB mapping as standard and OS Explorer 1:25k available.

Going abroad? Get international mapping through our partners TwoNav.


OS GPS following a route with waypoints

Routing, waypoints and alerts

Discover new places and explore old favourites. Follow routes with loaded waypoints and receive alerts for directions and points of interest. You can also record your own routes, adding waypoints along the way.

Upload routes from GPX files, OS Maps and more.


OS GPS battery life

Exceptional battery life

Go further than you ever have before. With over 20 hours of battery life, enhance your activities by staying out for longer without having to turn back sooner.

The OS Aventura also includes a 24-hour interchangeable battery to cover even more ground.


OS GPS waterproofing demonstrated

Rugged body and water resistant

Built to last and survive the Great British weather, the OS GPS range is protected by a rugged, shockproof, water-resistant (IP67) body, so you can tackle all extremes.

Whether it’s rainy, snowy, windy or muddy, your OS GPS will have you covered.


OS GPS SeeMe Tracking functions

SeeMe™: Peace of mind

In case of emergency, send your exact coordinates via SMS and email to two emergency contacts from anywhere in the world – all without a mobile.

You can also broadcast your activities in real-time to friends and family straight from your GPS, so they can track you every step of the way.


OS GPS connectivity and sharing

Connect and share your activities

Share your routes and stats on Strava, GO (by TwoNav) and social media. Look back at your activities and analyse distance, altitude, speed, time and more.

Plus, connect with OS Maps to share routes between your GPS and view your activities in 3D on your computer.


Compare the OS Walking & Hiking GPS range

  OS Trail GPS
OS Aventura GPS
Dimensions 80 x 130 x 20 mm 80 x 130 x 28 mm
Weight 215g 250g
Display type Transflective touchscreen Transflective touchscreen
Display size & resolution 3.7": 640 x 480 pixels 3.7": 640 x 480 pixels
Buttons (front) 4 + joystick 4 + joystick
Battery Life 20hrs: rechargable li-ion 24hrs: rechargable li-ion
Removable battery  
Built-in memory 16GB 16GB
OS 1:50k GB mapping pre-installed
Free 1:25k OS mapping 6 x 1:25k tiles 12 x 1:25k tiles
microSD™ up to 64GB (not included)  
Water & dust resistant IP67 IP67
Temperature resist -10° to +60°C
3-axis compass
Barometric altimeter
GPRS communication
Ant+™/ Bluetooth® Smart
Performance tracking
Basemap (OS 1:250k full GB)
Additional 1:25k & 1:50k OS map tiles available
Waypoints, routes & tracks Unlimited Unlimited
Compatible with external sensors

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