I have seen some very "fat" 5lb yorkies lol. Its not what they weigh its in their weight for their bone structure. Laddy used to be a skinny one before he got fixed at 3.9 lbs and we free feed. Now at 4.8 he is perfect and when to skinny his little back even had that roach back look. I am loving the extra weight on him myself
. When we went to get my Sister-in-laws pup the breeder had one of the fattest little yorkies I have ever seen. Not sure what it weighed but probably should of been 3 or 4lbs and was at probably 5 to 6. Its little tummy almost looked pregnant and due any day and it wasn't lol.