What's the difference between the Leatherman Wave+ and the Surge?

The Wave+ is the lighter, more carry-friendly full-size tool that most reviewers treat as the all-around benchmark. The Surge is bigger, heavier (around 12.5 oz per one reviewer), and stronger, with larger pliers, longer blades, and a swappable saw/file. Forum consensus is that the Surge is the more capable heavy-duty workhorse but is heavy for pocket or even belt carry, while the Wave+ is the better everyday compromise.