Arduino Pro Mini vs Nano - A Comprehensive Comparison

SparkFun Arduino Comparison Guide

COMPARING ARDUINO (UNO, NANO & PRO MINI) - arduino-tutorials.net

Arduino Pro Mini vs Nano - A Comprehensive Comparison

The Nano Every is Arduino’s 5V compatible board in the smallest available form factor: 45x18mm! The Arduino Nano is the preferred board for many projects requiring a small and easy to use microcontroller board. One example is low cost robotics, where the Nano is broadly used.

Arduino Nano Every (Single Board) ABX00028

For Arduino Pro Mini Improved Board ATMEGA328P 3.3V 8M Replace

Arduino Comparison Guide - SparkFun Learn

Arduino Microcontroller Feature Comparison

What is the difference between Arduino Nano and Arduino Micro

ATmega328 running at 16MHz with external resonator (0.5% tolerance) No USB connection off board. Need FTDI board (or similar device) to program.

SparkFun Pro Mini ATmega328-5V/16MHz Development Board Compatible with Arduino Boards and IDE

Introduction to Arduino Nano - The Engineering Projects