Do I have to create an account to purchase via Samsung.com? 

No, you can make a purchase as a guest without creating a Samsung.com account.

If you do this, it's important you provide a valid email address, as you will be asked to enter it during the purchase process. This address will be used to send you important details about your purchase - for example, your order confirmation (which contains your order number and, if applicable, a tracking number), as well as updates on the progress of your order, such as dispatch notifications.