differences between the Raspberry Pi Zero, Pi Zero W, and Pi Zero 2 W a

 

The primary differences between the Raspberry Pi Zero, Pi Zero W, and Pi Zero 2 W are their
processors, wireless connectivity, and performance. All three models maintain the same tiny form factor, making them compatible with existing cases and accessories. 
Comparison of Raspberry Pi Zero models
Feature 

Raspberry Pi Zero
Raspberry Pi Zero W
Raspberry Pi Zero 2 W
Processor1 GHz single-core ARM11 (Broadcom BCM2835)1 GHz single-core ARM11 (Broadcom BCM2835)1 GHz quad-core 64-bit ARM Cortex-A53 (RP3A0 SiP)
Wireless ConnectivityNoneBuilt-in 2.4 GHz WiFi and Bluetooth 4.1Built-in 2.4 GHz WiFi and Bluetooth 4.2 with improved shielding
PerformanceBasic performance for simple projects.Same as the
Pi Zero
, but more versatile for internet-connected projects.		Up to 5x faster multi-threaded performance than the
Pi Zero W
.
RAM512 MB LPDDR2512 MB512 MB LPDDR2 SDRAM
Power ConsumptionLowest of the three, good for minimal battery-powered applications.Low, but slightly more than the
original Zero
due to wireless features.		Higher under load due to the quad-core processor, but still efficient.
Use CaseBest for projects where cost is the only factor and no wireless connectivity is needed.Ideal for small, simple IoT and robotics projects.Excellent for more demanding projects like retro gaming emulation, video processing, and more complex IoT devices.
GPIO HeadersRequires soldering headers for use.Requires soldering headers for use.Requires soldering headers, but a "WH" version is available with headers pre-soldered.

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