cia

To be clear, all Apple Watches worldwide have the blood o2 hardware, ONLY the US versions have it deactivated via software.  I'm in the United States, and currently on my wrist is an Apple Watch 10 (wifi) that I bought in Canada last fall and its blood o2 sensor is working fine here in the states. The only catch is if I had a hardware issue and had to get warranty service here, they would swap it for a US version that doesn't have the blood o2 sensor activated.  I would have to go to an Apple Store in Canada to get a swap that had the blood o2 sensor activated.  US and Canada have different model numbers, that's what tells the software to turn on or off the blood O2 sensor. The hardware is identical.

If you are close to our southern border you could probably buy one in Mexico also and the blood o2 sensor would work as well.


/edit I had to go dig around to find the model number differences but: 

US Apple Watch Series 10 GPS 46mm Jet Black no o2 sensor is: MWWQ3LW/A.
Same config but from Canada w/ working o2: MWWQ3AM/A

@AppleZulu

I had an ink jet printer for years, it worked ok, but as time went on I was printing less and less, and it seemed like every time I did want to finally print something, the ink had dried up, or was blotched or whatever.  The cost to replace was high, and then next time I needed it, it had dried up again.  So since I never print photos anymore I got a cheap B&W HP laser printer off Amazon Renewed for $75.  It came with a "starter" toner cartridge that is only good for a few pages, and then you have to buy a normal one.  That was 8 years ago, & I'm still on the "starter" toner cartridge. Thing prints fine every time I (rarely) do need something printed.

If you are like me and rarely need to print, check out renewed printers, they are super cheap.  Be sure to check if the one you are getting is MacOS compatible, most are but you never know.

The new options for 4K are actually great.  8K is nifty and all, but high refresh uncompressed 4K is more useful in the computer display space. Finally 144Hz uncompressed 4k!

Slight correction to the article:  2012 was the last year of Firewire ports on shipping Macs.  The last old style "Cheesegrater" MacPro released in mid-2012 had FW800 ports. (as did the mid-2012 MacPro Server released at the same time.)  Also my 2012 MacBook Pro 13" has a FireWire 800 port as well.  Still use that MacBook Pro actually.

Always enjoy your articles Chip.  Keep up the good work!