The diversity of wallets for Ethereum is due to the fact that the loss of the private key leads to the loss of Ethereum without the possibility of recovery. The choice of how you are planning to store your cryptocurrency is completely up to your individual preferences. But remember that very often the more convenient the service is, the lower its security level. Please don’t forget about this feature.
By downloading the Ethereum-client you initiate the work of a desktop wallet, which will function on the desktop computer or a laptop. This software can be based on different programming languages and may differ in the performance level.
The registration process takes several minutes, and you can add the existing keys to the installed client. Downloading can take a certain time, which is up to several days. Make sure to synchronize the new wallet with operations performed in blockchain.
Mobile clients require less data to download data. It is simple to install them on smartphones, since the program interface is as easy as possible. They offer a method of “cold storage”, that is the private keys are stored on the device, which is disconnected from the Internet. This guarantees better data security, which means that the large Ethereum holdings will be safe.
This kind of wallets is a digital device. Even being disconnected from the Internet, it is able to conduct transactions. The market is full of offers now, but the usage of hardware wallets is inconvenient because of the impossibility to access the blockchain.
It is another kind of “cold storage”. The secret key is manually written on a sheet of paper or is formed into a PR-code, which is easy to scan. Paper wallets are reliably insured against any system malfunctioning as well as from the outside attacks. But if you lose the record, you will not be able to restore access to Ethereum.