If the “ESP32 vs Arduino” debate is the first fork, the ESP32 vs ESP8266 question is the second. Both are Espressif Wi-Fi chips you program from the Arduino IDE, but they are aimed at different budgets and ambitions. Here is how to choose.
Cores and speed
The ESP8266 is a single-core chip that is perfectly capable for basic Wi-Fi tasks. The ESP32 is dual-core, faster, and has far more RAM and flash, which matters the moment you parse JSON, run a web server, or handle TLS. Start with our ESP32 vs Arduino guide if you are new to the ecosystem.
Wireless: Bluetooth is the decider
The ESP8266 does Wi-Fi only. The ESP32 adds Bluetooth Classic and BLE, which unlocks peripherals, beacons and phone-free sensing. If your project might ever need a Bluetooth sensor or a phone connection without Wi-Fi, the ESP32 wins by default.
GPIO and peripherals
The ESP32 exposes more pins and extras like touch sensors, a DAC, and extra UART/SPI/I2C interfaces. The ESP8266 has fewer usable pins and some quirks (notably a limited ADC). For anything beyond a single relay or sensor, the ESP32 is roomier – see the ESP32 dev board buying guide for board choices.
Price and maturity
The ESP8266 is famously cheap and battle-tested for simple jobs. The ESP32 costs only a little more and is now equally mainstream. Unless you are buying in volume for a trivial task, the small premium for the ESP32 pays off. Boards like the ESP32-S3 with a 4.3-inch IPS screen show how far the platform has come.
Our recommendation
Buy an ESP32 for your first and future projects; keep the ESP8266 only for the absolute cheapest Wi-Fi switch. If you want to go further, our MicroPython vs Arduino on ESP32 guide helps you pick a language, and the home automation starter turns the board into something useful immediately.
Frequently asked questions
Is the ESP32 better than the ESP8266?
For most new projects, yes. The ESP32 adds a faster dual-core chip, Bluetooth, more GPIO, more memory and peripherals like touch and DACs, usually at a similar entry price. The ESP8266 remains fine for simple Wi-Fi-on/off tasks.
Is the ESP8266 still worth buying?
Yes for the cheapest possible Wi-Fi relay or sensor where you do not need Bluetooth or many pins. It is mature, cheap and well documented. But if you are buying your first board today, the ESP32 is the better long-term choice.
Which is easier to learn, ESP32 or ESP8266?
They share the same Arduino toolchain, so the learning curve is nearly identical. The ESP32 simply exposes more features; you only explore them when you need them, so beginners are not overwhelmed.
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