Amazon Flex drivers enjoy the convenience of receiving their payments on a weekly basis, which are directly deposited into their bank accounts. This system allows drivers to have a steady cash flow, making it easier for them to manage their finances and plan their expenses. In contrast, Amazon FBA sellers typically receive their payments every two weeks. However, they have the option to utilize the 'Express Payout' feature, which enables them to access their funds the very next day. This flexibility is particularly beneficial for sellers who may need quicker access to their earnings for reinvestment or personal use.