4 ms·

I was reading it is based on the part numbers and it is a different number for US bought watches. If number ends with LW/A you will not have it https://suppor

I was reading it is based on the part numbers and it is a different number for US bought watches. If number ends with LW/A you will not have it https://support.apple.com/en-us/120359 https://support.apple.com/en-us/120359

tylrprtr 2y ago
This is correct. You could order a Series 10 from a Canadian source and have a working blood oxygen sensor.
- tedd4u 2y ago
  Can verify this works. Use reship.com to get a Canadian mailing address and have it forwarded.