This is not an Arduino, although it sure looks like one ! This is a feature-loaded, turbocharged ESP32 Wifi/Bluetooth Low Energy SoC development board for IoT applications.
SparkFun ESP32 Thing is the updated version of the ESP8266 that supports the Bluetooth low energy(BLE) that enables your IOT projects.
The Wio Core is a wifi module with an embedded ESP8266,developed from the ESP-WROOM-O2 for all IoT appllications.
Wio Node is an ESP8266 module for any IOT platform that is small and compact but very effective.
LinkIt Smart 7688 Duo is an open development board jointly designed by Seeed studio and Media tek.
Wifi shield helps the Arduino board to directly connect to the Wireless network.
SparkFun Blynk Board - ESP8266 is a light weight,interactive board monitored by a Blynk App.
Protocentral ESP8266 Wifi shield is the most suitable Wifi module for your Arduino.
RedBear CC3200 Wi-Fi Board is an effective Wifi tool to speed up your IoT projects.
The SparkFun ESP8266 Thing is a combination of Wifi and the ESP8266 which has Iot applications.
Linkit One is a development board offered by Seeed studio for all Iot platforms such as Wearables and Iot applications.