In trying to match up a 6″ digital caliper with their new AngleMaster Pro v2 tool (sneak peek here), Bridge City Tools ordered many different models and did some testing. What they found out was that many of the cheaper generic imported calipers were plagued with “choppy resolution, sloppy travel, grungy travel and unreliable results.”
Bridge City Tool Works ultimately goes on to recommend the Mitutoyo Absolute Digimatic caliper, model 500-196-20. I also happen to own and wholeheartedly recommend this exact caliper to all but the most casual users, but I can’t say that I went through $1000 of calipers before choosing it.
Digital Calipers Surprise: You Get What You Pay For… via Bridge City Tools Blog (also be sure to read through the interesting discussion in the comments)