I have an oblique distal fracture(non displaced) that has yet to fully heal after 11 weeks. my orthopedic is recommending a bone stimulator... help?

In general 11 weeks: Is longer than most fractures tske to heal and you have likely a delayed union but there are times the x-ray picture lags behind the actual true bone situation in certain locations. You did not specify. Where the fracture is and what your symptoms are.

Nonunion : A bone stimulator is a good option if the fracture is nondidplaced because the other option is surgery to fix it with a plate and screws. If you use the bone stimulator as directed u may see early healing within 4-6 weeks.