Those are probably using a smartphone processors, the die-size alone of Graviton2 makes it desktop/server class.
Qualcomm 8cx cpu is based on smartphone one but optimized for laptop use.
The Neoverse N1 cores used in the Gravitron2 are very close architecturally to the Kryo 495 Gold cores in the 8cx. Of course, the 8cx only has 4 of them, while this has 64.