The Raspberry Pi Zero W extends the Pi Zero family. The Pi Zero W has all the functionality of the original Pi Zero but with added connectivity.
Consists of:
802.11 b/g/n wireless LAN
Bluetooth 4.1
Bluetooth Low Energy (BLE)
Also has:
1GHz, single-core CPU
512MB RAM
Mini HDMI and USB On-The-Go ports
Micro USB power
HAT-compatible 40-pin header
Composite video and reset headers
CSI camera connector
The Raspberry Pi Zero W has all the functionality of the original Pi Zero but with added connectivity.
consists of:
802.11 b/g/n wireless LAN Bluetooth 4.1 Bluetooth Low Energy (BLE)
Raspberry Pi Zero 2 W is built around a Raspberry Pi-designed System-in-Package which integrates the BCM2710A1 die used in Raspberry Pi 3 with 512MB of RAM.
Key features:
1GHz quad-core, 64-bit ARM Cortex-A53 CPU
VideoCore IV GPU
512MB LPDDR2 DRAM
802.11b/g/n wireless LAN
Bluetooth 4.2 / Bluetooth Low Energy (BLE)
MicroSD card slot
Mini HDMI and USB 2.0 OTG ports
Micro USB power
HAT-compatible 40-pin header
Composite video and reset pins via solder test points
