The most elaborate option in Apple ... the AirPort Extreme: all white, glossy plastic that resembles a milk carton in size and shape, akin to a 6.6″-tall version of the AirPort Express.

Apple has released version 7.8 of the firmware for compatible AirPort Express WiFi routers to add AirPlay 2 support. Although there had been hints in iOS betas that the latest iteration of Apple’s ...