By: Cynthia Binder Of,CAI had previously purchased the Sport Dog 1800 years ago, so the 1825 was not so different for me. However, I really like the new slimmer style to the collars, and they are MUCH lighter as well! The range also seems to be better, and not stopped by as many hills, trees, etc., as happened with the earlier unit. Although I haven't had the unit long enough to appreciate the new 'low battery' warning lights, I like that that is included now, as before I would just have to assume low battery when the efficiency was lost.
Review ID: 647
out of 5-stars.