1. The Radxa Zero follows the zero-W for form factor, but thanks to the higher performance offered by the Amlogic S905Y2 quad-core Cortex-A53 processor clocked at up to 2.0 GHz, which Radxa says is equivalent to the for CPU performance about 70%.2. Tiny Arm Linux board with up to 4GB RAM, 16GB eMMC flash and AP6212 or AP6256 wireless module. Plus all the interfaces from the for Zero W, but the difference is that the mini -compatible port is replaced by a Mini -compatible port, and a USB-C port is used instead of a -USB port.3. The only missing feature is the MIPI CSI camera, but compared to the for Zero W, the Radxa Zero offers better specs based on memory, storage and wireless modules.4. The board should be running Android and is getting work done on Armbian/Twister OS and other operating systems. From a software point of view, it is a "G12A" platform, such as the reference that can be found in the Linux kernel, and is compatible with the Amlogic S905X2.5. As a side note, it's not the first quad-core to offer a replacement for the Zero W, as the Banana Pi M2 Zero was launched in 2017 with an Allwinner H2+ quad-core Cortex-A7 processor up to 1.0 GHz, but Again Radxa Zero would be even stronger here.SoC: Amlogic S905Y2 quad-core Cortex-A53 processor @ up to 2.0 GHz with Arm Mali-G31 MP2 GPUSystem Memory: 2GB or 4GB LPDDR4Storage: -sd slotVideo output: Mini -compatible port up to 4Kp60Connectivity:Ampak AP6212 Module: 802.11b/g WiFI 4 up to 72 Mbps plus Bluetooth 4.0 or Ampak AP6256 Module: 802.11n/g/ac WiFi 5 up to 433 Mbps and Bluetooth 5.0USB: 1x USB-C 2.0 OTG port, 1x USB-C 3.0 host portCamera: 1x CSI camera connectorExpansion: Color-coded 40-pin for compatible header: 5V via USB-C portProduct size: 65x30x5mm (same as zero W for )Colour:greenMaterial:PCB+Metaltype:2GB+8GBPackage Contents:1 x for RADXA ZERO development boardOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.