Hi everyone! 
I'm new in cryptocurrency, I'm trying to understand it but there still one thing I didn't understand about wallets!
At first, I know there is cold and worm wallet.
The cold is a hardware that store coins in it
And the warm is a software or a site on the internet that store coins on the internet or in the laptop or mobile ( is what I already know right ?)
But what I'm trying to know about soft wallets like Bitpay, Enjin or BitCoin Core wallets, do they store bitcoins on the device or on the internet?
So if l have bitcoins in my mobile wallet and the mobile drop in water and go!, did the coins gone too or I can get them back in a new mobile by the recovery key?
And I'm sorry for my weak English
From what I know, you can reopen it with another device as long as you know your bitcoin address and private key you still remember.I'm new in cryptocurrency, I'm trying to understand it but there still one thing I didn't understand about wallets!
At first, I know there is cold and worm wallet.
The cold is a hardware that store coins in it
And the warm is a software or a site on the internet that store coins on the internet or in the laptop or mobile ( is what I already know right ?)
But what I'm trying to know about soft wallets like Bitpay, Enjin or BitCoin Core wallets, do they store bitcoins on the device or on the internet?
So if l have bitcoins in my mobile wallet and the mobile drop in water and go!, did the coins gone too or I can get them back in a new mobile by the recovery key?
And I'm sorry for my weak English
We recommend that private key to knowing yourself do not share with others and do not write it on your mobile device because if your mobile is lost stolen it will be misused.
You no need to remember the bitcoin address to recover the wallet to other devices,just the private key is enough you can import the bitcoin into other devices by entering your private seeds.But for wallets like Coinbase only needs email ID and the password so you can access your bitcoin from any device.
But OP is asking where it has been stored,all bicoins are store in the blockchain network you need that private key to access your crypto so as long as you know the private key these is no problem if you brick you device or lost it.