Hi there,
i'm quite unsure about where to save my btc and eth. personally as i travel a lot i will have difficulties using a hardware-wallet, so i was thinking of a kind of mobile version. is there anything you could recommend?
You can buy trezor or ledger s nano if you want a safest wallet for storing your coins. BTC and ETH can be stored in those wallet.
but if you want the simple wallet, you can use blockchain.info for bitcoin, and metamask for ethereum.