In the past few years, we have covered a bunch of Rubik’s Cubes that combine with your smartphone to improve your cube solving skills. The HEYKUBE is also worth a look. It is a standalone smart cube with a Bluetooth brain inside. It walks users through each step without needing a smartphone app.
The HEYKUBE has a Python library, so developers can push patterns, music, and everything else into this device. HEYKUBE Voice will be able to connect to Alexa. If you choose to use your smartphone, you can send patterns and challenges to your cube and track your times with millisecond accuracy.