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The difference is that the Turris Omnia is a project specifically meant to provide a router that enthusiasts can play around with, while the ZBOX is an actual PC firstly. Both are just examples, to get people started with their own research however. Even just installing OpenWRT or similar firmware on your current router, is arguably already better and a security enhancement.
Of course it can get a little blurry. But note for example, that the Omnia comes with custom software, which does things like automatically keep the firmware up to date; a real benefit in security terms, if it works, since routers are often left in a corner and as such security updates are easily forgotten; if they're even provided by the manufacturer at all. The Omnia may also be more easily extensible. If you check their forums, you'll find many people swapping out parts in the Omnia, for some sort of performance boost or role-change. In addition, the Omnia is far more powerful than most of the typical consumer routers; even the "high-end" ones like the Asus one you listed.
You can for instance see how the Omnia (and Zbox) have more powerful processors, which is ideal for obtaining good performance levels with OpenVPN (which is what Air uses). Or how for instance, the Omnia can have up to 2GB RAM, while by comparison many of the "high-end" consumer routers have no more than 256MB. So in router terms, either the Zbox or Omnia can serve as better long-term investments than conventional routers. Likewise, the Omnia also gives you access to some ports which are a rarity, if not actually never seen(SFP), on consumer routers and which a PC may not come with. The Omnia should also be more "plug and play"ish than the Zbox, in networking terms. We've got guides around here for PfSense though.
It's really up to you and how involved you wish to get. Both are platforms with which you can build your networking dreams on . Note also that as I added those entries at different times, it wasn't intended to make it seem like a comparison between the two, but merely to point people in a direction, to do their own research, as many simply don't know where to start .
Moderators do not speak on behalf of AirVPN. Only the Official Staff account does. Please read the First Questions section in the link above for more details, thank you.
Did you make a guide or how-to for something? Then contact me to get it listed in my new user guide's Guides Section, so that the community can find it more easily.
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