When comparing Zotac P series vs Radxa Rock2, the Slant community recommends Radxa Rock2 for most people. In the question“What are the best Raspberry Pi alternatives?” Radxa Rock2 is ranked 20th while Zotac P series is ranked 23rd. The most important reason people chose Radxa Rock2 is:
Has a built-in Bluetooth module. Meaning there's no need to buy one.
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Pros
Pro Built-in Bluetooth
Has a built-in Bluetooth module. Meaning there's no need to buy one.
Pro Built-in Wifi wth antenna
Has built-in Wifi capabilities.
Pro Can dual boot Linux and Android
Other than supporting several Linux distros along with Android, you can also choose to dual-boot both.
Pro Provided with a clear plastic case
Comes with a clear plastic case included in the price, which is pretty useful for most projects people would use a SBC for..
Cons
Con HDMI has some problems on Linux
The HDMI port has some issues on Linux, fortunately these issues are not present when using Android.