You can send ETH and tokens from another wallet to your Sequence Wallet. Simply copy your Sequence Wallet address and go to your existing wallet or exchange to send funds to your Sequence Wallet address.
You can find your Sequence Wallet address under the account name (in the format 0x12a45...6bc9).
If you've already sent ETH, MATIC or BNB it will show up in your balance but it won't appear in the history section. Read on to understand why.