I’ve just come across another waterproof tablet-based navigation system by Norwegian company Orca
https://getorca.com. I’m not quite so convinced about this one compared to its Belgian competitor Sailproof
https://sailproof.shop.
It’s quite a bit more expensive than Sailproof and unless I’m missing something, can’t operate as a normal tablet in its spare time. Its battery seems to be about 25% smaller. It relies on NMEA 2000 and wifi rather than Bluetooth to connect to the rest of any network (including transducers). And although it makes claims about readability, I couldn’t find any information on the technical specification of its screen, which seems to be sourced from Samsung. If you want to rely on its underlying charting and other software (I’m not sure that there’s any choice in this), then you have to pay a large annual subscription. And looking at comments on the owners’ club, there seem to be quite significant software glitches.
In short, it doesn’t seem like the oligopolist-killer that Sailproof and a gaggle of Bluetooth-oriented sensor companies (Calypso, Openwind, Echozilla) may one day turn out to be.