> Hey,
Hi !
> as usual you can't tell from the user-agent which iphone model you are
> dealing with. in the past i used a simple 20ms benchmark in javascript to
> distinguish between 2g/3g and 3gs. the idea was formed in a discussion in
> this very group here.
>
> var percentmobile_t=new Date().getTime();
> var percentmobile_s=0;
> while(new Date().getTime()-percentmobile_t<20)
> {
> Math.random();
> percentmobile_s++;
> }
> var model=(percentmobile_s>1000)?"3gs":"2g3g";
>
> this worked well and i expected to be able to do something similar for the
> new device. didn't work. within the 20ms both create between 1500-2400 random
> numbers. i tried creating some other objects such as images or DOM nodes, but
> same thing, the browser performance is not distinguishable. does anyone of
> you have an idea what else to try?
humm…. kind of a strange detection system but well, if it works, why not :) Why
didn't you use user-agent or browser version?
> i was also trying to do it by detecting the new display resolution, but
> without luck. i always get 320x480 and never 640x960. is there any way to get
> to the 640x960 in javascript?
screen.width ?
> disclosure: i am co-founder of percentmobile.com, a *free* mobile web
> analytics solution and we used the methods like the one above in the past to
> differentiate between models.
Just sign-in :)
R.
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