Looking for a Good GPS

[Huntn]

One of the biggest problems with the iPhones as a GPS is the loss of cellular coverage. They do just fair as a GPS without a cell signal, but without a data connection you loose all ability to update your base maps. That's where a stand-alone unit shines.

That and there's always the issue of battery charge when you are relying on it!

I’ve often wondered if the GPS portion of the phone continues to function with a loss of cell coverage? I’d assume, maybe. Regarding battery dependence, would’nt that apply to all portable units, which could be supplemented with spare charge batteries?

 

[jdechko]

I’ve often wondered if the GPS portion of the phone continues to function with a loss of cell coverage? I’d assume, maybe. Regarding battery dependence, would’nt that apply to all portable units, which could be supplemented with spare charge batteries?

GPS will still work without cell service. You just need an app that will let you download maps. I really like Gaia GPS. It’s not super cheap but it has a lot of great features.

First off, it has access to a lot of different map data including OpenStreetMaps, Sattelite imagery, US quads and USFS Topo. It supports KML/KMZ files and you can upload tracks from the website or from your phone. There’s an Apple Watch app (which I haven’t used). It also has tracking / route saving built in and supports waypoints.

As far as downloading, you can adjust the area you want to download and set your zoom level. Some maps will go all the way down to 1:3000 scale.

As far as battery life, I can usually go on an all-day hike and still be fine with spot checks only. Turn on airplane mode and GPS will still function. Obviously if you turn on the tracking, it will drain the battery much faster.