BT GPS units
I notice there is quite a difference in prices betwen a number of different BT GPS devices I have been looking at, despite the mall using the SiRF Star III chipset.
Can anyone tell me if there is really that much difference between the units given the same chipset? As an example, I find I can get the BT-74S for half the price of the BT-338 whe nto all intents and purposes the specs for the 2 units appears identical. (And the Holux GR271 and the 236 are cheaper still).
I'll be using the device for incar navigation (TomTom and OziExplorer) using my JAMin (Prophet), so with access to a charging socket, battery life is not as important to me as it may be to others (i.e. one unit lasting 15 hours and another 17 hours is not a deciding factor in the purchase...)