When was the last time you used a smartphone with a removable backplate?

Heck, when was the last time you used a smart device with a removable battery?

When did you use a phone with back-firing speakers?

The short answer is a long time ago because phone makers have since switched to sealed unibody constructions. This was after tech journalists mounted pressure on device manufacturers to make premium phones, especially on the Android side of things and at a time when iPhones were considered superior phones because of their sealed construction.
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