It looks as though the Aqara Rotary dimmer and high precision motion (body) sensor are available to buy in China now. (Photo credit: 李好) : r/Aqara
Aqara H1 Smart Dimmer Wireless Rotary Switch Zigbee 3.0 Remote Control For Smart home Bulb Light Curtain Work with APP Homekit - AliExpress
Aqara Smart Light Switch (No Neutral, Single Rocker) Plus Aqara Hub M2, Zigbee Switch, Remote Control and Set Timer for Home Automation, Compatible with Alexa, Apple HomeKit, Google Assistant - Amazon.com