The main difference between frxETH and sfrxETH is that frxETH is simply ETH staked through FRX, whereas sfrxETH is ETH obtained through the increase in price of the FRX token. With frxETH, the user is essentially "staking" their ETH in order to receive FRX tokens, which can then be used to purchase other products and services on the FRX platform. With sfrxETH, the user is taking advantage of the increase in price of the FRX token to acquire more ETH. This is done by exchanging a portion of their FRX tokens for ETH at a higher rate than what they originally purchased the FRX tokens for. Both frxETH and sfrxETH can be used to purchase other products and services on the FRX platform, but the user will need to decide which option is best for them depending on their investment goals.
