New iPhone 13 Max.

[TrevorB1]

Transferred data. Do I need to put old SIM (iPhone 7Plus) into the new phone?

[Gareth_L]

Hello TrevorB1

You are able top keep the SIM out of the new 13 max until the transfer is complete 

If you get stuck have a look here 

Hope you enjoy the new handset 

Gareth_L