Every week we offer to take in questions for Tech Savvy columns and then to search for the answers. This prompted one reader to ask why we don’t print the questions and answers in our weekly column.

Using files known as vCards, you can easily transfer contacts to your Samsung Galaxy S10 from an Android or iPhone. Here are two ways to do it.

The Samsung Galaxy S3 accepts tiny MicroSD cards. It ships without a card in its slot but can accept MicroSD, MicroSDHC and MicroSDXC cards as large as 64GB. Cards this large enable you to carry ...