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Good GPS Receivers Phone manufacturers normally do not publish technical specifications of their embedded GPS while Bluetooth GPS receiver manufacturers publish their technical specification. However, those data can only confuse regular consumers. Most GPS receivers manufactured these days performs very well and in fact they all use same chipsets manufactured by mainly 3 manufacturers and they are all pretty good. There's one data you need to care which is “tracking sensitivity”. Higher tracking sensitivity some times makes it sensitive to deflected GPS signal but low tracking sensitivity suffers many issues. Most phones' embedded GPS works well while some are not reliable and does not have sufficient sensitivity. Some of them suffered by phone's firmware issues. Bluetooth GPS Receivers Most
GPS Bluetooth receivers works better than built-in GPS. They are
very sensitive and acquisition time is faster in most conditions.
Any GPS Bluetooth receiver available in the market is likely to
work with LifeInPocket well but we have seen very few of them are not
fully Compliance with Bluetooth standard thus not as reliable in
operation.
Are
those expensive Bluetooth GPS receivers better then those cheap
ones? Our
tests indicate that the performance of receivers have very little
relationship with their price. If you are buying receivers without
LifeInPocket compliance logo, you may want to make sure that they
allow you to return or exchange easily with no or little penalty. |