The key features based on which one can judge a crypto wallet are: 1. Security: An essential factor that separates one wallet from another is its security and troubleshooting capabilities. It is a matter of protecting your private key from hacking and phishing. 2. Ease of use: Maximum users operate on a user-friendly interface rather than a complex one, irrespective of other parameters like the speed of transaction or wallet charges. 3. Fast transactions: Speed of transactions is an essential factor. Some wallets take 6 hours to process a transaction, while others complete it within an hour. 4. Transaction fees: Lower transaction fees facilitate more frequent transactions and higher volumes. 5. Easy conversions: easy currency conversion helps to perform transactions across multiple cryptocurrencies. Few wallets allow swapping, as it is a time-consuming process.