I don't need a top-of-the-line smartphone, but when the opportunity came to cut cellphone costs in half, my wife and I switched to a new company and got new phones as part of the deal. The transfer of old phone numbers to the new phones required only a phone call and about three minutes. Smooth and easy.
Then came the task of moving contact lists from one phone to another. That became a long, frustrating process.
Simply switching SIM cards didn't do the job, although the phone supplier recommends that approach. I won't go through the many, many steps that took about three hours to figure out. Contacts got moved one at a time to a folder the new phone could finally read and download. Then moving the contacts from the downloaded file involved several operations for each contact. This process should have taken about five minutes.
Surprisingly, Samsung manufactured both the new and old phones, so I lost a lot of respect for the company's user interface designers. Whoever wrote the phone's manual deserves to listen to customer complaints.
I'd bet the underlying software works well, but the user interface lacks an intuitive flow that would make it easy to create a Bluetooth connection and transfer information back and forth with other devices. Perhaps the user interface never got a thorough test by potential customers. The designers could have made the user "experience" simpler and easier to understand.
Samsung isn't alone in the design of poor user interfaces. A government Website I recently tried to use required entry of a lot of information. The bottom of the screen placed a "cancel" button in the middle and a "continue" button off to the side. I instinctively clicked the cancel button and had to start over. Why not color the cancel button red, and the continue button green, and place them in the center of the screen? The cancel button could pop up an "Are you sure?" message and let people click yes or no.
An automatic billing email I receive monthly used to include a large "sign in" logo that did nothing. Instead, the page designer required people to click on a "sign in" legend in small type. Thankfully, people can now click on the logo.