Not even out of the box, and they've already been compromsied.
Naked Security explains:
SophosLabs cited a rising tide of Android-based attacks in its 2017 Malware Forecast last month, and the problem was further illustrated last week in a report that Windows-based malware was making its way into Android apps during development. And now researchers have discovered another security issue: devices shipping with pre-installed malware.
Check Point’s Mobile Threat Prevention team says it detected malware in 38 Android devices belonging to a large telecommunications company and a multinational technology company.
The team said malicious code was already present on the devices even before they were issued to users. Just as the Windows-based malware cited above was introduced during the development process, so were the malicious apps Check Point discovered. Six infections were apparently added to the device’s ROM by bad actors using system privileges.