# Memory Availability Comparison between ESP32 and ESP32-C3

DevFeed: [Memory Availability Comparison between ESP32 and ESP32-C3](<https://devfeed.tech/articles/memory-availability-comparison-between-esp32-and-esp32-c3-13926.md>)

Original publisher: [Read original article](<https://developer.espressif.com/blog/memory-availability-comparison-between-esp32-and-esp32-c3/>)

Author: John Lee

Published: 2021-04-25T00:00:00Z

Content type: comparison

Language: en

Sources: [Blog on Developer Portal](<https://devfeed.tech/sources/blog-on-developer-portal.md>)

Topics: [Availability](<https://devfeed.tech/topics/availability.md>), [ESP32](<https://devfeed.tech/topics/esp32.md>), [ESP32-C3](<https://devfeed.tech/topics/esp32-c3.md>), [Bluetooth](<https://devfeed.tech/topics/bluetooth.md>), [Wi-Fi](<https://devfeed.tech/topics/wi-fi.md>)

Tags: [availability](<https://devfeed.tech/tags/availability.md>), [ble](<https://devfeed.tech/tags/ble.md>), [blog](<https://devfeed.tech/tags/blog.md>), [comparison](<https://devfeed.tech/tags/comparison.md>), [esp32](<https://devfeed.tech/tags/esp32.md>), [esp32-c3](<https://devfeed.tech/tags/esp32-c3.md>), [esp32-programming](<https://devfeed.tech/tags/esp32-programming.md>), [espressif](<https://devfeed.tech/tags/espressif.md>), [iot](<https://devfeed.tech/tags/iot.md>), [wi-fi](<https://devfeed.tech/tags/wi-fi.md>)

## AI overview

This comparison examines memory availability in ESP32 and ESP32-C3. It describes ESP32-C3 memory-management changes, including dynamic IRAM-DRAM allocation and different Bluetooth memory handling, and states that ESP32-C3 can provide better or equivalent memory headroom for various embedded application use cases.

## Source excerpt

Espressif launched ESP32-C3 at the end of 2020. It's very well received and now it's already in the mass production state. ESP32-C3 provides Wi-Fi and Bluetooth LE connectivity for applications in the most cost-effective way. For the users of ESP32 who use it for Wi-Fi and/or BLE connectivity, ESP32-C3 is a possible upgrade option provided other requirements match. So let's first take a look at the comparison of ESP32 and ESP32-C3 from that perspective.