Comment 15 for bug 1421623

I disagree with statement that "GPS (less accurate)"
this is simply not true.
It gives impression that GPS is less accurate, and when selecting second
option (with wifi) user will get better accuracy. But this is not true.
From all location providers available, GPS is most accurate one,
unfortunately also most power hungry and slowest to gain lock. This is
reason we use all other providers to get faster, though less accurate,
coarse location using combination os visible wifi access point and cellular
cells.
And this is essentially what that that second option should tell user, and
remove less accurate info from first option.

Using corner cases like "in the building wifi is more accurate then GPS,
because GPS cannot get lock at all" does not stand. That's like saying GPRS
is faster than 3G or LTE, because that is true in the areas without LTE or
3G signal where GPRS still functions. Anything is always grater than 0. Yet
you don't say GPRS is faster than 3G, or do you?

On Tue, Aug 11, 2015 at 3:59 PM, Rex Tsai <email address hidden> wrote:

> +1 on Ondrej's comment.
>
> The wizard UI imply that GPS is less accurate, which is simply
> misleading if the user has no knowledge on GPS fix. Even the user know
> about GPS fix, there is no other UI indicate the phone has locked the
> GPS.
>
> To make sure setting more friendly, my suggestion is
> O High accuracy (Using GPS, anonymized Wi-Fi and cellular network info)
> O Power saving (Using anonymized Wi-Fi and cellular network info)
> O Device only (Using only GPS, without sharing network info for privacy)
> O Disable Location Service
>
> Does it make sense to user, and explain a bit more why a user need to
> make a choice ?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1421623
>
> Title:
> Welcome wizard claims GPS is less accurate than wifi based location
>
> Status in Canonical System Image:
> New
> Status in Ubuntu UX:
> Invalid
> Status in ubuntu-system-settings package in Ubuntu:
> Invalid
> Status in unity8 package in Ubuntu:
> Incomplete
>
> Bug description:
> First boot welcome wizard in location sections claims GPS is less
> accurate than network based location service from HERE.
> While this can be theoretically true in some insane corner case, in
> normal life GPS is far more accurate.
>
> To help form correct text here are main differences.
>
> GPS - more accurate, but slow to acquire fix, does not work indoors,
> drains battery more, no need for internet connection, does not send
> any data out.
>
> Network based location - almost instant to get coarse location, works
> indoors, accuracy depends on network coverage in the area, more power
> efficient, requires internet connection. To get location data about
> visible GSM network and wifi networks needs to be send to 3rd party
> server.
>
> tested on krillin vivid-proposed r107
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/canonical-devices-system-image/+bug/1421623/+subscriptions
>