Hello! I’m buying my dad a new Apple Watch for Christmas. Years ago, I got him an AW1 and it’s definitely time he has a new one. He has the 42 now. I’m not sure which one I should get him. Is the 45 that much bigger than the 42? Or is the 41 a safer bet? I’ve been wanting to order so it gets here sometime close to Christmas but I don’t want to mess up and get the wrong size. I thought I would ask you all since you would better compare sizes than I can.