Key Points
A cryptocurrency wallet stores private keys that control access to your cryptocurrency on the blockchain.

A cryptocurrency wallet that is directly connected to the internet is known as a hot wallet. This wallet can offer convenience and speed, but has a higher security risk.
A cold wallet stores keys offline using hardware or other methods, thus providing better security but is less convenient for everyday use.
The best cryptocurrency wallet choice depends on the trading frequency, the amount of cryptocurrency owned, and the desired level of security.