The Nautalytics has a "viewing cone" of 120° (60° off the centreline) and the numbers are twice the size of those of the other alternative, so that's probably not a deciding factor. Would have to test them on the water. Simple Compass
What keeps the Nautalytics marginal in the near future is that no one outside the United States seems to be selling it. In contrast, I can go to several shops in my home town (Helsinki) and buy a Raymarine Micro off the shelf.