QUOTE(vez @ Dec 18 2017, 03:49 PM)
possible with car tint? my friend car uses expensive 3k+ tint, when i sit his car go KL, sometime will lag bit, but my car in KL, i have no issue with my X, i have been using ipx with GPS at KL for few days last week only, when i sit friend car, my X GPS seems lag bit... he told me his tint expensive, maybe too thick

p/s: my car dont have tint

All your comment are valid, using Vkool which has metal material that attenuate the wireless signal strength according to the shop, but.... my experience with 6S+, 6+ were much much better, same tint and on my iPad Pro which is much inside the car(since it is too big to be at dashboard) still I can detect much better.
My backup plan is used iPad Pro when I am on important travel, Intel continue to disappoint me. Even my friend who is in Sg on 7+ having hard time on Pokemon Go which rely on GPS accuracy. Ya can tint and how far from windscreen has a play but my ipad pro prove it not necessarily true.
Anyway on 11.2.1, will continue to monitor, thanks for the thoughts.
I have read through Apple website many in US also complain
https://discussions.apple.com/thread/8189221One of the quote: "So I went and traded my AT&T iPhone X for a sim-free iPhone X (which includes CDMA, etc, but also has the Qualcomm chipset versus the Intel chipset). GPS accuracy seems better. I have not tested it super extensively, but the at a glance tests seem similar to my other (older) i-Devices. The AT&T one was never as accurate as the older devices."
Miss Qualcomm on my iPhone....