The Adruino Nano 33 IoT is an easy to use IoT ready micro controller. The board makes use of a low power Arm Cortex 32 bit processor. WiFi and bluetooth is done using a module from u-blox, the NINA-W10, low power chipset operating at 2.4Ghz.
The chip also comes with a Microchip ECC608 crypto chip allowing for secure communication.
Finally the board also comes with a 6 axis IMU, making the board perfect for simple vibration alarm systems, pedometers, relative positioning of robots and so forth.
The board easily connects to any WiFi network or can be used as an access point. Examples can be found in the WiFi NINA library reference page
The communications chipset on the Nano 33 IoT can be both a BLE and Bluetooth client and host device which is rare in the world of micro controllers. To learn more see the ArduinoBLE library
More information on the board with all the technical specifications can be found on the Arduino website here.