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Technology geeks, please respond!
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kenjohn
Senior Member
Senior Member


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Joined: 03 Jun 2007
Posts: 6438
B-Day: 7 January 1963
Gender: Male
Club: Csir Running Club
Race #: 1666 AGN
Road Shoe Brand: Adidas
Trail Shoe Brand: Salomon
# Comrades: 6
# 2 Oceans: 4 Ultra / 5 Halves
# 1000KM Challenges: 20
# 100 Milers: 0 and never will.
# Parkruns: 25 (8)


Location: Pretoria

Post Technology geeks, please respond!  Reply with quote
I've always run with a watch - starting with the old-fashioned "stop watch" in my early days and moving onto various GPS tracking watches as time has gone by.

In July, I started using a Running App on my phone for some (not all) of my training runs.

It is the S-Health App on the Samsung.

All seems good until the last two days.

My last two runs have been over routes that I have used regularly over many years, so I know where they start and finish. In the last two days, the app has measured the routes long and had my running at a pace that I know from my own running is incorrect - far too fast!

It seems like it needs calibrating or something.

So, my question to the techno geeks out there is simple: -

How can I check if the app is measuring correctly and can it be re-calibrated in some way?

All input gratefully accepted!

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Fri Oct 07, 2016 8:03 am View user's profile Send private message Send e-mail Visit poster's website
doppierunner
10km Runner
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Joined: 07 Apr 2009
Posts: 385
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Club: RAC
Race #: 11477
Road Shoe Brand: Asics
Trail Shoe Brand: Asics
# Comrades: 12
# 2 Oceans: 26
# 1000KM Challenges: 2
# 100 Milers: 2
# Parkruns: 164 (49)


Location: Randburg South Africa

Post Reply with quote
Ken I wouldn't trust any mobile device running app. I don't believe that you phone checks the gps location every second. I have used two different apps and in both cases they record more distance than I run. Over 5km they are normally out by about 200m. However if I run a route that is mostly straight then the app and my watch are almost spot on.
To check if it is your app or your phone download Strava and Endomondo. Both free and use them to see how they measure your routes.
Mon Oct 10, 2016 1:49 pm View user's profile Send private message
Sasquatch
Fun Runner
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Joined: 06 Jan 2014
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Road Shoe Brand: Adidas
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Location: Johannesburg

Post Reply with quote
doppierunner wrote:
Ken I wouldn't trust any mobile device running app. I don't believe that you phone checks the gps location every second. I have used two different apps and in both cases they record more distance than I run. Over 5km they are normally out by about 200m. However if I run a route that is mostly straight then the app and my watch are almost spot on.
To check if it is your app or your phone download Strava and Endomondo. Both free and use them to see how they measure your routes.


+1 on trying Strava or Endomondo, they are the only relatively decent mobile apps.  Strava I especially like for record keeping and admiring your previous performances q12

I don't know your app Ken, but it could be that it is using your phone's accelerometer instead of the GPS.  I find accelerometer measurements to be pretty inaccurate and way too variable unless you are running around a flat track.

The best would still be to buy a running watch.  Way more accurate and less of an issue to carry with you.  The Tom Tom Runner 2 is a fairly affordable watch that is simple to operate and very accurate.  My father needs reading glasses but can still use his Tom Tom without them, the display has large bold letters that are easy to read.
Fri Oct 14, 2016 9:55 am View user's profile Send private message
messi123




Joined: 03 Mar 2016
Posts: 9
Gender: Male
Road Shoe Brand: Adidas
Trail Shoe Brand: Adidas


Location: Birmingham, AL

Post Reply with quote
Hello ken ,I am agree with doppier ,dont trust any app. They wont measure accurate results. Instead of using app you should concentrate on your time ,running distance. And you have to set your goal for runing.
Good luck Ken!!


Mon May 15, 2017 6:50 am View user's profile Send private message Visit poster's website
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