I bought the small WW scale that they sell at meetings, it was $12.00 Canadian. They sell a larger one but it was about $30.00 and I thought that was too pricey so I bought something similar but not digital at Walmart for around 1/2 the price. My advice is to shop around. Though in the future I may upgrade to a better quality one
I have found it really worthwhile to have a foodscale to help me with portion control - that was one of my biggest problems.