Luma is nearly 8 pounds at 1.5 years old. Rosie is 2.8 lbs at 8 months old and will probably stay 3-4lbs at the most. I do have to handle them differently. Luma is skinny and tall, fast, very athletic, high energy. She doesn't seem fragile at all. When I got Rosie I wanted a pup around the same size, maybe just not as tall and long. I ended up falling for Rosie, who was NOT the runt of the litter. She just hasn't grown much. She may be a late bloomer
but they are from the same parents. Hard to believe sometimes! Luma is my big baby and in my eyes the perfect size (for me).
Rosie I have to worry about. She wears a breakaway cat collar with a bell. She gets cold extremely easily. Has had several hypoglycemic episodes. She is free fed. Is still on puppy food in the hopes she will fatten up lol. I love them both, but Luma is more of the size I personally prefer. I would have not chosen a puppy I knew was going to end up ~3 lbs. She charted to be 4.5 lbs, but then she wasn't growing much. Don't get me wrong, I do love Rosie so much, I just didn't desire a tiny yorkie.