Connected GPS feature SF3/Galileo supported smartphones

Luís Pinto · 5 Apr 2018, 21:34

@dimitrios-kanellopoulos That would be very valuable!

NicolasP · 5 Apr 2018, 21:37

@luís-pinto don’t forget that phones can use not only satellites but as well the mobile network for better accuracy. So it’s even more difficult to know what has been really used to record the track. Maybe a combination?

Luís Pinto · 5 Apr 2018, 21:40

@nicolasp Well mentioned! I had forgotten that reality.

Luís Pinto · 6 Apr 2018, 08:59

@nicolasp By the way i found this in one app for iPhone (iSmoothRun):

“GPS Quality
A few words on GPS signal quality and accuracy. GPS accuracy is not controlled by the app (or any app) but by the device. Apps only define what are the accuracy requirements for the specific use. We run the iPhone GPS unit always on maximum accuracy mode (it doesn’t have much impact on the battery). Any app would give exactly the same results (you can run two apps in parallel to check). We usually give better results than other apps, when there is no GPS signal and other apps give positions from WiFi spots or cell towers, while we switch to pedometer till we get a satellite fix again.”

Dimitrios Kanellopoulos · 6 Apr 2018, 09:04

I asked and the developers replied that the best mode for accuracy is asked and they do not ask for a specific location provider which means that it will use what the phone is capable of.

jthomi · 6 Apr 2018, 15:28

Another test from today’s tour:

http://www.mygpsfiles.com/app/#Ai1QGGkJ

Again with iPhone7 SuuntoApp tracking in comparison to tracking with the Suunto Spartan Sport.

Luís Pinto · 4 Jun 2018, 15:41

@jthomi Thank you again! What you done its appreciated. Same conclusion, line of watch seems more accurate. One thing that i didn’t understand, did you use in watch Navstar+Glonass ou just one?

There is a limitation on system for smartphones. We never can select in which system we want to make a registry. This is of course a real problem to compare. If we get satellites with types of different precision, how a OS make a read? From average?

Even by now it’s not possible in watches for example select Glonass alone.

Anyone with another smartphone brand?

jthomi · 6 Apr 2018, 15:50

Honestly I totally forgot that I can switch on Glonass. Guess I have to make another round then…but not today…

@luís-pinto said in Connected GPS feature SF3/Galileo supported smartphones:

@jthomi Thank you again! What you done its appreciated. Same conclusion, line of watch seems more accurate. One thing that i didn’t understand, did you use in watch Navstar+Glonass ou just one?

jthomi · 6 Apr 2018, 15:51

@luís-pinto All those functions!! aarrrghhh

Dimitrios Kanellopoulos · 6 Apr 2018, 15:52

@jthomi said in Connected GPS feature SF3/Galileo supported smartphones:

@luís-pinto All those functions!! aarrrghhh

How can you select only one system in the iPhone?

NicolasP · 6 Apr 2018, 16:21

My phone Samsung Galaxy S7 is not compatible Galileo but pretty sure the settings are the same for S8 & S9.
As you can see Samsung lets you choose the accuracy level you want.

Perhaps S8/S9 owners could confirm what they have in terms of location accuracy setting.

Dimitrios Kanellopoulos · 4 Jun 2018, 16:30

Guys there is no setting to choose a satellite system from the phone!
Don’t worry about that.

Only devs can select that if they want.

jthomi · 6 Apr 2018, 16:49

@dimitrios-kanellopoulos

Not on the phone yes, but on the watch I can switch Glonass on and off.

Luís Pinto · 6 Apr 2018, 17:19

@jthomi Yes.