How to Choose a GPS Watch for Hillwalking

A GPS watch can be a genuinely useful hillwalking tool — a quick glance at your altitude, distance, position and time without stopping to dig out a phone. But it's important to be clear from the outset: a watch is a convenience and a backup, not your primary navigation. Map and compass skills remain essential, because any electronic device can fail. With that firmly established, here's what actually matters when choosing one.

Battery life is the headline spec

For hillwalking, battery life in full GPS mode is the number that matters most — not the "smartwatch" battery figure. A long Munro day, or a multi-day trip where you can't charge, will drain a watch fast if its GPS endurance is poor. Look for strong GPS battery life and modes that trade tracking accuracy for longevity on big days. A watch that dies halfway up is worse than useless.

Mapping vs breadcrumb

Watches broadly fall into two camps:

• Full mapping watches show actual topographic maps on the wrist — powerful, but pricier and harder on the battery, and the small screen limits how much you can really read.
• Breadcrumb / route-following watches show a simple track line to follow and your position on it. Lighter on battery and cheaper, and for many walkers perfectly sufficient — you follow a pre-planned route line and use your map for the detail.

Decide honestly which you'll actually use. A tiny wrist map is no substitute for a proper map; many experienced walkers find the breadcrumb approach the sweet spot.

Features that matter (and ones that don't)

• Useful: a barometric altimeter (accurate altitude, handy for pinpointing your position on a slope), a reliable compass, GPS grid-reference display (invaluable in an emergency), and rugged, waterproof build.
• Nice to have: route import (load a planned GPX), storm/pressure alerts, and multi-band GNSS for better accuracy in steep-sided glens.
• Largely irrelevant on the hill: most "smart" lifestyle features, and anything that needs a phone signal to work.

The watch and the phone

For most walkers, a phone running a dedicated hill-mapping app is a more capable navigation aid than a watch — a bigger screen, proper maps, and grid references at a glance. The Munros app, for example, gives you offline maps and your position for all 282 Munros. A watch complements that with at-a-glance data and a backup, but neither replaces the map and compass you must still carry and know how to use. See our navigation skills guide and offline maps guide.

Related guides

• Navigation skills for Scottish mountains
• Offline maps for Munro bagging
• How to track your Munros
• Munros tracking app — offline maps, position and grid reference for all 282