I am planning to delete the smartphone wallet from my phone now since I already have the backup of the seed.
Note that that doesn't really make your coins any safer. The seed phrase was already generated in a hot wallet and has been stored on a device with internet access for a period of time. Deleting the wallet app might also not actually delete the wallet file or other data, and it certainly won't overwrite those sectors of your phone's storage. If you want your coins in an offline wallet with the seed phrase only stored on paper, then you need to create the seed phrase and wallet using an airgapped device in the first place.
Yeah I agree with you. But don't you think Mycelium and Exodus are relatively safer than other smartphone wallets?
Also, the smartphone is going to stay with me forever. Now since I have deleted the apps I will be completely wiping the data by doing a factory reset.
I guess that will lower the risks when compared to it's previous state.
Wanted to ask you one thing. Even if we buy a hardware wallet from the ledger nano or trezor official website how can we be sure that the device is not compromised on it's way to the customer.