Earlier this month, I wrote about possibly the worst benchmarking application I had ever seen, 'Nenamark.' But Geekbench has come to save the day, bringing their Geekbench 4 benchmarking utility to Android. Geekbench is another cross-platform benchmarking program, so you can compare your results to a wide range of devices.
The Android Geekbench app, at least compared to the Windows/macOS equivalents, seems rather simplistic. You can benchmark your device's CPU and GPU, which are displayed as a number at the end (unlike Nenamark). The CPU benchmark performs both single-core and multi-core results, which is a nice touch. Unfortunately, Geekbench's battery test has been removed in this version.
If you feel like comparing scores across all your devices, Geekbench is also available for Windows, macOS, Linux, and iOS. There's not much else to say about Geekbench, other than it works. Which is really all you can ask for from a benchmark application.