Coolwallet only operates on Apple but they are looking to bring out android compatibility soon. The wallet is a hierarchical deterministic wallet that allows you to sync up your phone with a credit card looking hardware wallet.
The wallet is quite difficult to set up involving multiple steps to do a check for backing up your access codes to the wallet. All in all a relatively long winded process to set up the wallet. But with poor ease of use generally comes better security as is the case here.