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Windows Phone GPS accuracy?

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  • User profile image
    elmer

    Although we are standardising on Nokia Lumia, we have some iPhone and Galaxy-S devices at work.

    Something I have noticed is that both the iPhone and Galaxy always seem to be accurate with GPS location, while the Lumia devices seem to be more of a rough guess at where you might be.

    Asking Siri 'where am I?' always seems to get the correct location.

    While there is no real equivalent of Siri, when using Nokia 'here' my location might be shown as anything up to a kilometre away from where I actually am.

    It's almost as if the response should be "I don't know, go find a street sign and read it" if you want anything accurate.

    Is this a WP issue or a Nokia issue ?

  • User profile image
    kettch

    @elmer: That's definitely odd. My 920 is generally accurate to a few feet. Judging by the aerial overlay, it knows which room of my house I'm in right now.

    Do you have location services turned on? That increases the immediate accuracy quite a bit.

  • User profile image
    elmer

    @kettch:Yes, I have location services turned on.

    When using Nokia here, it will actually show my location with a qualifier like 'within 900m' - indicating that it knows it's next to useless.

    I'm currently at home but it's showing me as being in the car-park of the local library.

  • User profile image
    kettch

    @elmer: Curiouser and curiouser. I've only ever go the "within" label when a device has had to fall back to cell triangulation. I've never had that happen on my 920. I had it happen two phones ago on my Focus, but it would only happen for a few seconds, and there would be a circle indicating the error margin. That circle would quickly shrink and go away as it switched over from triangulation to GPS.

  • User profile image
    GoddersUK

    It could be a GPS signal issue - for instance getting decent GPS reception in urban areas can be quite an issue. Here in London I can very rarely get an initial location fix without turning a-GPS on (although once I've got the initial fix I can generally turn data off again without an issue).

  • User profile image
    magicalclick

    Did you wait a little longer? First second it gets a very rough estimate. 5seconds later gives navigation ready accuracy. Most app will use the first second result instead of waiting for extra 4seconds. For example, I would open Bing Map for 5 seconds to locate me, then I switch to Zillow, otherwise Zillow will use rough estimate. Most apps pulls instant GPS result form location service, which is often inaccurate.

    Leaving WM on 5/2018 if no apps, no dedicated billboards where I drive, no Store name.
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  • User profile image
    elmer

    @GoddersUK: GPS never seems accurate on my 920 regardless of where I am.

    @magicalclick: I can wait all day, and it never gets any better.

    Based on other people saying that their 920 works, I'm starting to suspect that mine is faulty. I'll now have to decide if it's worth going through all the drama of getting a repair/replacement given that I know how crap that service is where I live.

    However, I'm probably going to have to get it checked out because a bigger issue I have with it is that the battery can inexplicably go from fully-charged to dead-flat in a matter of a few hours. I rely on the phone as my alarm clock, but have been late to work a number of times now, because I've gone to sleep with a fully-charged phone, only to wake up with a dead brick. There is no rhyme or reason that I've been able to work out for this yet. I check that no background apps are allowed, and that WiFi is disabled, but the phone often runs hot, as if one of them is still running despite saying it's not, and it chews through the battery like there is no tomorrow.

    Generally, I have not been very impressed with this thing, and regret getting it.

  • User profile image
    kettch

    @elmer: I'd get one that's not broken before you decide whether or not to be impressed. I actually made mine go almost three days of occasional use. What ultimately killed the battery was that I was out in the sticks and the radio was burning through the juice trying to keep a signal.

  • User profile image
    GoddersUK

    I'd watch out if I were you, smartphone battery gain has been an "issue" before...

    http://www.wired.co.uk/news/archive/2009-07/15/researcher-says-middle-east-blackberry-update-spies-on-users

  • User profile image
    magicalclick

    Maybe the map is not calibrated well. Use TakeMeHome app to get lat/lon and compare. But yeah, return it if I am you.

    Leaving WM on 5/2018 if no apps, no dedicated billboards where I drive, no Store name.
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  • User profile image
    Sven Groot

    I have a friend who has a Nokia Windows Phone, I think I remember her saying  that "Nokia Here" would get her location wrong, but if she just opened maps it was fine. I'm not 100% sure if I'm remembering that right though.

    My HTC doesn't have any Nokia stuff, so I can't test how well that works, but Bing Maps is just as accurate with my GPS position as my iPhone was.

  • User profile image
    elmer

    @GoddersUK:Damn! that explains it. NSA are running my battery flat and corrupting my GPS.

  • User profile image
    MasterPi

    , Sven Groot wrote

    I have a friend who has a Nokia Windows Phone, I think I remember her saying  that "Nokia Here" would get her location wrong, but if she just opened maps it was fine. I'm not 100% sure if I'm remembering that right though.

    I have a 920 and I can say that Nokia Here can sometimes take a while to detect that you moved from the last time you had the app open. I do feel as if I have to hit the "find me" icon a few times before it understands my location is different. When it does wake up, it's pretty accurate. In short, accuracy is good but initialization seems to be not so good.

  • User profile image
    MasterPi

    Looks like Nokia updated the Maps and Drive apps to specifically fix positioning. I'm really happy with their frequent updating of apps. Almost wish the Nokia team handled WP development...

  • User profile image
    kettch

    @MasterPi: It's nice to have frequent updates, but I wish they and others would bother to put a change log in the description. It's not necessary, but it would be nice to know that I should look for new functionality. Also, I'm annoyed by their insistence on a "Nokia Account".

  • User profile image
    MasterPi

    @kettch:They do put it, unless you want it to be the first thing you read in the description.

  • User profile image
    kettch

    @MasterPi: Some put it in the description, but not enough. It seems hit and miss, even among apps from the same publisher. Big name publishers are the worst offenders.

  • User profile image
    MasterPi

    @kettch: I was speaking in terms of Nokia. I know what you mean about other publishers. Netflix is probably the worst because they copy and paste the most unhelpful release note with every release: "We added features and fixed bugs."

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