I have run a few different variations of GPS. My thoughts are as follows:
- Laptop running Oziexplorer and Memory Map. Both good programs but the laptop itself is too big for the vehicle.
- iPad running Hema apps. Great apps but once again, the device is too big for my liking. Be aware of larger devices in regards to air bag location too. If your iPad isn't 3G or 4G equipped, you will need an independent GPS such as the Bad Elf.
- Handheld GPS units, Garmin Oregon, Lowrance and Memory Map. Great for bush walking but too small for a vehicle.
- Garmin, VMS and Hema Navigators. I have run all three and if I was starting out would go for one of these. Good size and easily interchangeable between vehicles.
I haven't tried any of the cheapy Chinese units as I prefer to get an off the shelf product that was designed with a certain application in mind and knowing that I can get help from the manufacturer. I do like the programs on the laptop, which is my second favourite, just a shame about the size, but my personal favourite is the Hema HX1 (I do have a vested interest here but am trying to say this from an impartial point of view). Reasons being free topo map updates for the life of the unit, being able to save areas of map to a greater scale, clarity of the screen and help is available either online or by phone. Having said that, help is also available in Australia from both VMS and Garmin.