I can do it after the fact on my laptop. Geotracker, free phone app from a Russian developer, tracks my route and I export a KML to my laptop. When I open the KML Google Earth opens up and I can see instant speed by clicking or follow on the graph.
I’ve been trying the free version of Paddle Logger, but I don’t think it does what you want. I’m sure the paid version has a lot more functionality though I haven’t tried it yet. Here’s a shot from a quick evening paddle last night:
All these phone apps only work well if you have cell service. That being said, we were on the Buffalo last week and those using Strava had wildly different speeds and distances between phones and none were even close to those running handheld GPS except for one phone that had Verizon as they have better service up where we were. If I my life was depending on it, I would be using a real GPS and forget the phone.
I don’t think this is true. GPS is GPS, cell is cell. Now a phone can get better accuracy if has cell service, but you can still get data without cell service.
Now to make it even messier, at least for iPads, unless you bought an iPad with cell service hardware you don’t have GPS in it. (of course you don’t use an iPad in your boat, we go off road in our Jeep with an iPad)
And there there’s the iPhone11 Pro, which has a fairly widespread GPS inaccuracy problem. I’m about to test a free replacement from apple for this very issue.
And if you want great accuracy, you can get a bluetooth GPS receiver which hooks up to your phone, then you should have great accuracy.
BTW, I’m a Beta tester for the iOS “Waterspeed” app and really love it. The developer seems to respond to customer requests rapidly. I think it had a much nicer Apple Watch interface than Trails.
That is true only to a point. On a phone or a tablet the GPS and the cell service have co-dependencies. The GPS app in your phone is not 100% self contained. The phone only receives information via GPS, but map images and communication back to the server that does most of the heavy lifting on these systems like calculating distance and sharing information are all or in part via cell depending on the app. These apps are designed or a more urban setting an are totally fine in that environment. It will work great in the car or on the bike trails or the running path at the park or on a local river or lake. If you are going to be “out there” though, a bluetooth GPS like a Garmin Inreach Mini that syncs with your phone would definitely be the better way.
The other side of the coin is what do you feel more comfortable losing if something goes sideways, a $400 GPS or and $1,100 I Phone? Been on too many trips with people agonizing as the watch their phone go to the bottom and I know a kid who has found dozens of I phones in one particular stretch of river. Keep your phone packed in your go drybag and sync with your GPS in camp at night.
I’m still going to have to disagree with you. Sure, if you want to share and communicate, you need connectivity, but you do not need it for speed (at least not on an iPhone), you can confirm this by taking your iPhone, going into airplane mode, and the running a paddling app. You’ll see your speed and distance.
Maps? That depends heaving on your maps. For off road use I have all of VT and NH vector topo maps downloaded, don’t need cell service for maps. I get “out there” all the time, even carried a 12 foot antenna for data coverage, so I understand no and low signal areas, but we were talking about speed, not sharing here.
And about speed, the specialized apps can give you so much more than a traditional GPS. The app I use can show max speed or 30 second average, it can chime on km marks, and I think it can chime on new max speeds. You can later graph speed and heart rate over time, which of course needs some heart monitor, but I’m guessing if you care fitness (I actually don’t, I’m out there to see cool stuff) you might care about heart rate etc…
Different tools for different uses, certainly. But please don’t completely knock phone apps, they can be very powerful.
Oh, and they can sit in a dry bag under a hatch also and you use your watch to see speed. The ironic thing is, I’ve been working with the Waterspeed app developer for some time now debugging my odd speed issue, it really looks like a broken phone, but I’ve gone out a few times without my watch as part of a test and I’m actually enjoying being disconnected from tech while on the water.