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I have recently purchased a Samsung Galaxy tab 4. 10.5 and wish to transfer the data/photos from a Samsung Galaxy tab2. 10 1. Could please advise best course of action.

Use Smart Switch on a computer to backup from one device to restore to another using the guide here: https://www.samsung.com/au/apps/smartswi

Yes, you are right. You can use Samsung Smart Switch or coolmuster mobile transfer to transfer data/photos between your two Samsung tablets.