since they sell for close to the same amount.
Both rely on a factory designed/preset GB.
Now the differences:
Garrett Ace 250: Honestly, a good value for the dollar, if you want a model that has visual Target ID, simple operation, and is affordable, knowing that you have no control of the Ground Balance setting. In a non-mineralized (non-iron) Florida beach type site, or a low-to-moderate mineralized location, I found the Ace 250 to work reasonably well. I bought two of them, as well as a new GTAx0-1250 and GTP-1350 to do some evaluations of more current Garrett products with some of the White's and Tesoro models I used. Of the three Garrett models, I cared less for the GTP-1350, and I sold the GTAx-1250 soon after. While I also sold of the Ace 250's, it was due to the fact that I live in an area with high mineralization, and I hunt some sites that are worse. The preset GB of the Garrett models just annoyed me too much because I either had to deal with some falsing in the Disc. mode, or put up with the way too negative GB for the Pinpoint mode. You get a signal, cut a plug, and get a stronger/louder response when you sweep over the hole due to the negative GB!
I didn't care for a 'tinny' sort of audio on the Garrett's, and the upper 'S' rod is too short between the foam hand grip and arm cup for me and most people. Fine for kids or adults with shorter arms, but I didn't like it. The reason I favored the Ace 250 over the other Garrett TID models was because I liked the AA battery system, the smaller coil option, and I liked the standard coil, too. Best of all, it would just about match or better the performance I got out of the more expensive models!
Silver