Based on Raspberry Pi Pico, Raspberry Pi Pico W comes with a wireless communication module. The wireless module hardware uses Infineon's CYW43439 wireless chip, which supports Wi-Fi 4 wireless networks, making it the perfect solution for wireless network control and communication..

Key features include:

• RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom
• Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz
• Onboard Infineon CYW43439 wireless chip, supports Wi-Fi 4 wireless networks
• 264KB of SRAM, and 2MB of on-board Flash memory
• Castellated module allows soldering direct to carrier boards
• USB 1.1 with device and host support
• Low-power sleep and dormant modes
• Drag-and-drop programming using mass storage over USB
• 26 × multi-function GPIO pins
• 2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 16 × controllable PWM channels
• Accurate clock and timer on-chip
• Temperature sensor
• Accelerated floating-point libraries on-chip
• 8 × Programmable I/O (PIO) state machines for custom peripheral support

* Note: the Pico WH is the official version with pre-soldered header, no castellated holes design, can only be connected to the carrier board via pin header.