Aeotech identical Zigbee motion detectors, different names, manufacturers, entity names etc

Signify Netherlands BV, SML003, entities shows illuminence, occupancy, motion and temperature

Motion by Samjin, entities shows lazone, temperature

They look the same. They mount the same. They are both Zigbee. Neither are the new square shaped tri-sensor.

Does anyone know what I’ve got and why identical items are different? Tough to know what to buy.