A personal blender is normal a bit larger than a mini-blender, meaning they can fit more servings and they normally also carry much more power in wattage. You can also expect a personal blender to be a bit taller than a mini blender—so if it’s space you’re concerned about, you might want to check into the smaller personal blenders or normal mini blenders. Personal blenders are often a little bit more expensive than mini-blenders—but for a good reason: the power!