I am using ledger nano x from recent 2 months and it is very attractive and good looking hardware wallet. Ledger nano x suports many coins even that which are not in nano S.
Wireless Connectivity - Ledger nano X supports bluetooth connectivity so user can use ledger wirelessly and with mobile phones and computer both. Ledger nano X has in-built battery system.
Security - Ledger nano x is very secure hardware wallet and it gives 24 word seed as recovery seed. you need to write it down on paper and makes 3-4 copies and store at safe places. Ledger does not backup your seed so, if you lost your seed Ledger can't do anything.
Simplicity - Ledger nano X is very easy to use. there is one display for checking and comfirming sending address and two buttons are given to authorise the transaction. Now ledger nano X is supported with mobile phone's also.
Multicurrency - Ledger nano X supports more than 1000+ crypto coins and tokens. which is many more than nano S and you can install more multiple apps upto 100 at a time where nano S supports only 3 max. apps. Ledger nano X supports 56+ Blockchain coins.
Compatibility - User can use ledger nano X in Mycelium, MyEtherWallet, FIDO/U2F, Bitstamp, SSH Agent, Password Generator and OTP.
Overall - In my point of view, Ledger nano X is best hardware wallet ever as it supports multiple cryptocurrencies and it gives 24 word as beckup or recovery seed. Ledger nano x design is very advanced and it is very easy to use. There are two buttons are given on device for authorise or cancel the transaction and control the device.