LooseChange said..
I have a Samsung Galaxy Note 10.1 phablet, now I don't know how far out to sea or how sensitive the reception on it is but I do know that I can make and receive calls in the middle of the Hay Plains. As Cisco points out the real estate you get on something that big is just magic when looking at charts or maps.
Navionics on these devices just works so well. Most of the 5" or 7" chart plotters at certain levels of zoom, the screen is so cluttered with bold face sounding figures they are unreadable for navigation.
The Samsung Galaxy Note 10.1 phablet I believe is a top piece of kit and with Navionics installed on the device you do not need network connection for navigation. Google maps, yes. Navionics, no.
Whitworths have or had the Lowrance Elite 7 plotter/sounder, complete with all Aus charts installed with a choice of format (Navionics or ???? Seamap NT???) on special for $799 I believe. That is a good package.
Lowrance is owned by Navico who also own Brookes & Gatehouse, Simrad, Northstar (Navman) and another brand (Eagle??). Different levels of quality and or warranty from the same manufacturer. That is hardware and then there is software and it's user interface. If that is not right it does not matter how good the hardware is.
From my experience I have found Navinics on a tablet to be an accurate and reliable navigation tool. It has some gaps but a very good user interface.
Navigation is more art than science but like science requires precision.
Good thread, let's keep it rolling.