It's the question every keen geocacher eventually asks: do I really need a dedicated handheld GPS, or is the phone in my pocket good enough? For most people, most of the time, the phone wins on convenience and cost. But there are specific situations where a proper handheld pulls ahead so decisively that I'd never head into remote country without one. Here's the honest breakdown, point by point.
Battery Life
This is the handheld's biggest, clearest advantage. A unit like a Garmin eTrex runs around 25 hours on two AA batteries, and when they die you swap in a fresh pair from your pack and keep walking. A phone running a GPS app with the screen flicking on and off and the radio constantly polling satellites will be lucky to manage six hours, and far less in the cold. On a full day's hike chasing a dozen caches, the phone is usually begging for a charge by mid-afternoon. Carry a power bank and the gap narrows, but you can't beat a pocketful of spare AAs.
Accuracy Under Tree Cover
In open ground, modern phones and handhelds are roughly equal — both land you within three to five metres. The difference shows up under dense canopy or in steep valleys, where the signal bounces and weakens. Dedicated units tend to hold a lock better thanks to higher-quality antennas and support for multiple satellite constellations. Phones have closed much of this gap, and the published accuracy from national mapping bodies like Ordnance Survey shows just how precise consumer positioning has become. Still, in thick woodland I've watched a phone wander ten metres while the handheld sat rock-steady on the cache.
Ruggedness
Handhelds are built to be dropped, rained on and shoved into a rucksack with sharp gear. Most are rated IPX7 — submersible for half an hour — and the rubberised cases survive a tumble down a scree slope without flinching. Your phone, by contrast, is a slab of glass you've probably spent good money protecting. A cheap rugged case and a dry-bag help, but you'll always be a little more careful with it, and "careful" is the enemy of scrambling through a hedge after a tricky hide.
Cost and the Verdict
Here's where the phone claws it all back. You already own one. A capable handheld starts around £120 and climbs past £400 for mapping models. For a beginner finding park-and-grab caches at the weekend, that's money far better spent elsewhere — the free app does everything you need. The handheld earns its keep when you go further afield: multi-day trips, remote moorland, winter walks where a dead phone is a genuine safety problem. My rule of thumb is simple. If a flat battery would merely end your day, take the phone. If a flat battery could leave you lost, take the handheld — and bring the phone too.
