Bitcoin sounds expensive - do I have to buy a full bitcoin? Bitbuy.ca Support April 30, 2018 16:50 Updated Follow No, you don't! Users can buy portions of a Bitcoin or other coins for any dollar amount they choose. Related articles What is Bitcoin? How can I withdraw digital currency from Bitbuy.ca? I withdrew my digital currency from Bitbuy.ca, how long until I receive it? What is Ethereum? What is considered a proof of address document? Comments 0 comments Please sign in to leave a comment.