The Ethereum Wallet differs slightly in the creation of the wallet itself and how it is used.
When creating the Ethereum Wallet with Bitwala, only one (12 words) seed phrase is generated as opposed to 2 (12 words) seed phrases with the Bitcoin wallet. The recovery flow is also more simple - no need for special recovery tools. Just import the seed phrase into any ETH wallet to recover.
Further, the Bitwala Ethereum Wallet can only be created and operated in our mobile app. Why this is? You will find out here.