Can you ‘squeeze’ wireless? It’s intangible, surely?
Maybe so, but it needs somewhere from which to take off and land. And it’s that hardware – an extra Broadcom wireless chip and a special compact antenna – that the Raspberry Pi lot have managed to fit onto the Pi Zero. Now it has built-in 802.11b/g/n Wi-Fi as well as Bluetooth 4.1 and Bluetooth Low Energy. As well as all of its original spec: 1GHz processor, 512MB RAM, microSD card slot for the operating system and a mini HDMI port for 1080p video out.
Amazingly so, because it frees up the USB port for doing something else other than being jammed up with a clunky wireless adaptor. Which can break the kind of tight-space projects that Zeros tend to get used for. And/or, the budget. The original Pi Zero was only US$5, but a wireless adaptor or USB hub could cost several times that. Still comparatively small change, but if you’re project involves ten or ten thousand Zeros running in a system, it all mounts up. The new Pi Zero W is US$10, bare bones.