Splitboardboot vs. Snowboardboot
Firstly, it must be said that there are no pure splitboard boots. Of course, all boots designed for splitboarding can also be used in the ski resort without any problems. That should be reason enough not to buy simple snowboard boots, because you shouldn't do without the following features of splitboard boots on tour:
1. High flex: Most boots designed for splitboarding are in a flex range from 7-10. On the one hand, this provides safety on the descent, because if the conditions are worse than expected, it is desirable to be firmly connected to the board and not to float loosely in a soft boot. It is also good to have as much support as possible from the boot on the ascent in traverses or difficult passages. Most manufacturers offer the option of varying the flex when you are out and about in the ski resort. Some use removable plastic parts in the tongue for this purpose, while others have a power straps on the upper part of the boot that can be fastened as desired.
2. Walk mode: Not only splitboard bindings have a walk mode. With most manufacturers, it is possible to open the calf area of the boots using a Boa system, which makes touring much more comfortable. The extended range of movement makes it possible to take larger steps without losing stability, unlike the walk mode of the bindings. This is possible by only opening the boot slightly in the upper area, which takes the pressure off the calf while still maintaining stability through normal lacing when traversing.
As I used to ride hard boots, the first point was not noticeable for me. However, I can no longer imagine touring without Walk Mode. In addition, the Boa system on my boot also holds the heel better, which is a blessing for feet of different sizes, even in ski resorts when switching to the toe edge.
3. Crampons: Many boots have a toggle lever mount for semi-automatic crampons, at least on the heel. But more on this elsewhere.
4. High-tech: I summarise all other features in this category. Splitboard boots represent the top end of the technology and unfortunately also the price ladder for all manufacturers. This means that the manufacturers have packed everything into this type of boot that increases their quality and durability. Vibram soles for better grip when bootpacking and scrambling, lace covers to protect the laces from snow or integrated gaiters are just some of the features, as well as other smaller details.