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12

I think you already answered your own question. Most dedicated GPS devices are more rugged, have better battery life, and don't require a data connection to work well. A phone has a lot of power overhead and is fragile. There are a few possible advantages to a phone. If you're already going to be carrying one, it reduces the total weight required. It's ...


10

Most GPS receivers in phones work not nearly as good as stand-alone GPS devices. Usually, one wouldn't notice this because phones use assisted GPS where they get the orbital data and/or almanac of the GPS satellites as well as the exact time from the GSM network. Also, they have a average position of the device. Without that data, phones are very slow ...


10

GPS is simply not a good way to measure trail distance. This is because the raw GPS fixes have a lot of noise on them. If you take them literally, then you get a much longer distance than you actually moved. If you low pass filter them too much, you cut off corners and get a shorter distance. The usual algorithm is to apply some low pass filtering, but ...


8

There are two main things that can go wrong with gps accuracy. The first is the quality of the signal, which can be less than for a dedicated gps unit (less space for an antenna and other design compromises). Of course the question of how you carry it comes into play here (a low pocket isn't very good and this may be worse than with a dedicated unit ...


5

We have an article about this topic, since Gaia GPS users frequently ask - why GPS recording can be inaccurate. The short answer is, as others have said, GPS isn't perfectly accurate. If you compare a GPS measurement to a measurement from a measuring wheel, there will be a discrepancy in stat calculations, regardless of GPS chip or post-processing ...


5

I use Timble GPS Hunt Pro on my Samsung Galaxy S5 phone. You can download topo, BLM boundaries, private property and other types of maps that work just fine without a cell signal. The maps I use are incredibly detailed. If you do have cell coverage, you can add weather overlays. Map prices are reasonable, and you can buy a subscription that lets you ...


4

Let's go through the different aspects of phone versus dedicated GPS device point by point (however, quite surely without being complete). Basically you have to decide which points apply in your situation and how you weigh them. GPS reception and accuracy When the first smartphones with GPS units hit the market, there was the saying that their GPS ...


4

For your situation I strongly advice against relying on your phone. It's a great backup but to much of a risk to use as a main device. Three reasons to get a dedicated gps: Batteries: A gps mostly works on standard AA batteries which can be bought anywhere and rechargeable ones are easily charged on solar energy. (look up goal-zero for instance). ...


3

I have the $0.99 app, "Footpath Route Planner - Running / Cycling / Hiking Maps". ref: https://itunes.apple.com/us/app/footpath-route-planner-running/id634845718?mt=8 I end up using RideWithGPS on the desktop to map all my bike, run, hike routes but if you're looking for just an iOS version, this is certainly the nicest UI and UX that I've found. Both ...


2

While it surely is possible to pair the watch with several HR monitoring devices, I don't think it's possible to use more than one at the same time. I cannot tell for sure since I don't have an Ambit3 (which uses the Bluetooth Low Energy protocol to connect external sensors, as far as I remember) but only an Ambit2 (which communicates via ANT+) but in the ...


2

Garmin Basecamp is a free application that allows people to share tracks for various activities. I have found a ton of trails this way. http://adventures.garmin.com/


2

In the marine environment, it's often a little easier if you reference a known location. Offshore, you want to use lat/lon coordinates for sure. But if you're a mile from the coast (or less), it's a lot easier for people to find you if you say "We're a hundred yards south of buoy three, looking at the hotel with the red roof." I worked for a water rescue ...



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