Can I use 2 SIMS in my OnePlus 6T

Hi @Alexjones 2002

Dual sim phones are factory unlocked when sold which means they will never get locked. You can swap freely between many Sims and they will all work as long as they are supported by the version of the phone. In your case all UK Sims and most of European ones will work but let's say Australian or Canadian may not.

Kind Regards

Just adding to this @Alexjones 2002,

You can use dual SIMs and configure the settings in your SIM settings on the device.

Both SIMS can make & receive calls, you'd usually be given an option to toggle a preference, such as only sending texts from 1 number and only making calls from a specific number (though it should be very easy to switch between these when you're making the call/creating the text).

But, only 1 SIM can have a data connection. It's not possible to share this between the 2 SIMS etc.
Make sure that the APN's are configured correctly, as conflicting APNs can affect you being able to use data services properly.

Mohammed