Whats the FG? If the reading has stayed the same for 4 days and is where the attenuation should be, keg/bottle it; or wait 3 more days (I usually keep my hefes in primary for 14 days
then check the FG [as I keg
no, no; I didnt just say that]). The bubbles arent an indication of unfinished fermentation; your gravity readings are.