Online wallets offer greater convenience. You can generally access your Bitcoin from any device if you have the right passwords. All are easy to set up. The disadvantage is the lower security. With your private keys stored in the cloud, you have to trust the host's security measures.
Hardware wallets are small devices that occasionally connect to the web to enact bitcoin transactions. They are extremely secure, as they are usually offline and therefore not hackable. However, they can be stolen or lost. Some large investors keep their hardware wallets in secure locations such as bank vaults.
Where i can get hardware wallet? Can it be sent directly to my country?
You buy hardware wallet like ledger nano directly from
https://www.ledgerwallet.com/products/ledger-nano-sAnd you can receive directly to your country.
Can you tell which type of wallet a user is completing the transactions on when viewing say, the Blockchain? Reason is, a friend and I are debating that on the Blockchain you can determine whether one is using an online wallet vs a hardware wallet. I need some support on whether this is true. Cheers.
As of now, I don't find any software that could know which wallet you are using by checking transaction ID.
If you are looking for a wallet which is safe I suggest you hardware wallet and desktop wallet like electrum.
For mobile, mycelium and electrum for android.