I alluded to the Xiaomi sensors in my reply, but they are problematic for many people due to being non-standard and requiring careful planning of your Zigbee repeaters for that reason. There's an entire thread about this: Xiaomi & Aqara Devices - Pairing & Keeping them connected (tl;dr, stick to the repeaters mentioned in the first post there).
The new, Zigbee 3.0 devices might address this. However, the Amazon model number for that listing is not the new model number (and it says it's been listed since 2018). So, until we're sure both that the new models are available (I haven't seen anyone mention them anywhere yet, at least not the motion sensor) and that they indeed address previous Zigbee profile issues with these devices, I'd stay away. This isn't to say they don't work well--they do for many people, and I myself used them for a while without many problems. I liked their small size and quick response. I just had to be careful about what Zigbee repeaters I had, a problem I eventually got tired of needing to care about. 
