Argent mobile
You can use wallet on two devices if you recover it on the second device using off-chain recovery.
Recovery with guardians will disable the wallet on the original device.
IMPORTANT:
Contacts will not be brought forward on the new device and will not be shared between the devices further on.
Trusted session will not be brought forward to the new device as it is based on generating a temporary private key that will not be moved during recovery.
You will need to re-import your Argent X accounts if you have them in your Argent mobile.
Argent X, Argent web wallet
You can use the wallets on multiple devices.
IMPORTANT:
Order of your accounts in Argent X will not be brought forward.
You will need to re-authenticate with 2FA on a new device.