Should I get a digital or a dial caliper?

Digital calipers offer instant inch/metric/fraction switching and easier reading, but depend on batteries. Dial calipers like the Mitutoyo 505-742J need no batteries and are described by reviewers as essentially maintenance-free, which appeals to people who hate dead-battery surprises. The trade-off is no metric switching on the fly and a dial that can be damaged by grit or drops.