About the data & methodology

ESP Modules is a comparison and reference for Espressif Wi-Fi / Bluetooth modules. It tracks 24 modules across 11 SoCs and 5 families (WROOM, WROVER, SOLO, MINI, PICO). Every specification here is compiled from official Espressif datasheets. This is the methodology behind that.

Where the data comes from

The source of truth is the official Espressif datasheet for each module and SoC. We extract the published figures (CPU, memory SKUs, RF, GPIO, power, dimensions, pin tables and mechanical drawings) directly from those PDFs, and cite the datasheet on each record. Schematics, pin layouts and mechanical figures are rendered from the same datasheets. 3D models and footprints come from Espressif's official KiCad libraries.

How accurate is this?

Datasheet-derived figures (CPU, memory SKUs, RF, GPIO, power, dimensions and pin tables) are taken from the cited Espressif datasheet and linked back to it on every record, so you can check anything against the primary source. Editorial fields (ecosystem support, lifecycle status and release year) come from public information and change over time. We take care to transcribe accurately, but make no guarantee that every figure is correct; extraction and transcription mistakes are possible, so confirm anything you rely on against the datasheet itself.

How variants are collapsed

A "module" here is a part family, not a single orderable SKU. Flash and PSRAM options are listed as the set of available sizes (for example, a part offered with 4/8/16 MB flash shows all three) rather than one row per ordering code. Antenna sub-variants (PCB vs. external/U.FL, e.g. -U parts) share a page unless their specs genuinely differ. When you move to production, match the exact ordering code for the flash/PSRAM/antenna/temperature grade you need; a base part and its R2 (PSRAM) variant can differ in available GPIO, for instance.

Known limitations & gaps

• SoCs with known data gaps: ESP32-P4, ESP8266.
• Modules with fields still being completed: ESP-WROOM-02.
• Coverage is the common, currently-relevant modules, not every variant Espressif lists. Newer or niche parts may not appear yet.
• Some optional fields (active currents, full certification lists, a few low-power figures) are incomplete where the datasheet doesn't state them.
• Pricing, where shown, is indicative qty-1k list pricing and ages quickly.

Before you design it in

Always verify against the latest official datasheet before committing a design to production. Specifications, ordering codes and lifecycle status change. This site is an independent reference and is not affiliated with Espressif Systems; figures may contain extraction errors. Treat it as a fast way to shortlist and compare, then confirm the details on the primary source linked from each page.

Affiliate disclosure

Some "where to buy" links are affiliate links (e.g. AliExpress). If you buy through them we may earn a small commission at no extra cost to you. They never influence the specs or comparisons, which come only from the datasheets.

Corrections

Found a wrong figure? Every page has a “⚑ Report an error on this page” link in the footer that opens a pre-filled report on GitHub. Please point to the datasheet and page number so it can be checked against the source.

Data last regenerated: 2026-06-10.