, but restricted by their 4K limitation, size, 
 weight, and incredibly high price points that limit their usability to a very 
 select group of professiona...

https://www.apple.com/jp/pro-display-xdr/pdf/Pro_Display_White_Paper_Feb_2020.pdf

or as an agglomerate and where, for 50 percent or more of the particles in the number size distribution, one or more external dimensions are in the size ran...

https://www.apple.com/jp/environment/pdf/Apple_Regulated_Substances_Specification_Sept2018.pdf