FishTech Obstacle Wrangler Staff member Aug 18, 2022 #2 Very similar. 628 offers Rezboost. 688 was not and is not sold by Furuno USA. Any warranty on a 688 would have to go through the country or origin.
Very similar. 628 offers Rezboost. 688 was not and is not sold by Furuno USA. Any warranty on a 688 would have to go through the country or origin.
