How to Find Your Device’s Correct Information
To find the DPI, look at the Software Density entry under the Display section.
For the Android version, look at the OS version under the Device section. This explicitly displays the version number.
For architecture info, slide over to the System tab and check out the CPU Architecture and Instruction Sets entries under the Processor tab. This one isn’t quite as striaghtforward as the others since it doesn’t explicitly say “arm64” or similar, so you’ll have to read between the lines a bit.
First off, if you see “64” in the architecture name, you can pretty much guarantee it’s a 64-bit device. Easy enough. To figure out if it’s ARM or x86, you’ll look at the Instruction Set section—again, you’re just looking for the basic info here, like the letters “arm.”
On my Pixel 2 XL (the above screenshots), for example, it’s pretty clear that it’s an ARM64 device. The Nexus 5, however, isn’t quite as clear—we can see that it’s ARM, but it doesn’t explicitly show it as a 32-bit processor. In this case, we can safely assume it’s a 32-bit chip because it doesn’t specify the 64-bit architecture.