what is the difference between the echo dot 2 and 3?
Echo Dot 2 vs Echo Dot 3: Design The first, most obvious difference is the look. The Echo Dot 3 features a more rounded shape and a fabric-bound speaker that wraps the body of the device, ousting the smooth plastic look of the Echo Dot 2. ... In contrast, the Echo Dot 2 spans a 32mm height and 83.5mm width.