My first caliper was a Canadian Tire vernier. And then 6" Starrett dial, and an 8" Mitutoyo dial. I hate dial calipers!! Crude always get in the gear train, and then it skips giving you incorrect readings and then you have to reset the zero to a different rotational position, or take it apart and try to put it right. Give me a vernier instead any day, (and at 60, a strong set of reading glasses or magnifiers!)
But I now use the Mitutoyo Absolute AOS Digimatic. I decided to get the 4" and let me tell you, I love that size! I do a lot of small stuff and trying to wield a 6" in the confines of the mill or lathe is trying at times. Also, the tail? is a round rod, instead of rectangular, so it can get into smaller holes.
I use this everday. Sometimes I leave it on overnight by accident. The battery has easily lasted 2 years.