I contacted Sony customer support re replacement tips for the xm5, and received the following -
With reference to your enquiry regarding your Sony WF-1000XM5, we can confirm that Sony Spare Parts/Accessories can be ordered from our authorized distributor for parts and accessories detailed below or you can check with any local store:
Your It Delivered Contact information:
Website: https://www.youritdelivered.com/
Phone: +44 (0) 1932 226677
E-mail: customerservices@youritdelivered.com
Please note that the model number for the eartips needed is: 504850411.
When I told them that the part wasn't listed they said -
Please note that you may check with any 3rd party retailer, if the part is not available through the above retailer, or you can refer to the service centre to check the availability of the part.
Except that site has Zero parts listed
