Refurbished Laptops

It’s been a while that I want to buy a new laptop for my sister. But until now I wasn’t able to buy one for her. I am thinking to give my old laptop to her and then buy a new one for me but it wasn’t a good idea that I come up with. I want to give a new one if I want to give laptop for her, not my used laptop. I started saving money now, so I can buy a gift for her. For now I look online to see refurbished laptops. When the time comes I have an idea where to buy.