The Android version (especially with Chinese NoName devices) may be fake.
Install the CPU-Z, from the
[Only registered and activated users can see links. Click Here To Register...] or from one of the hosts
Code:
https://cpu-z.en.uptodown.com/android/download
https://apkpure.com/cpu-z/com.cpuid.cpu_z
...etc
Run it. In the third tab -
System - there is
API Level.
Look at
[Only registered and activated users can see links. Click Here To Register...] and find out which level suits your version. For example, API level 29 match Android 10.
In the same tab you can see
the architecture of your device.
- Armeabi-v7a » 32bit
- arm64-v8a » 64bit
There are variants (ARMv7/7A/7l...), but they are all within the same family.
In rare cases there are discrepancies »
x86_64 (Intel based) and Tegra (NVidia)