I previously thought that Apple shifted the bulk of its MacBook Pro assembly from China to Vietnam in around late 2024/early 2025 (with the M4 generation), and many of the M4/M5 generation MacBook Pros that I've seen unboxing videos of on YouTube are Vietnamese assembled units, however the 16 inch/M4 Max/64GB RAM/4TB SSD one I've ordered looks to a Chinese assembled unit (it's coming from what looks to be Foxconn's Chengdu plant). This makes me wonder, since I'm in the UK, if Apple have shifted nearly all unit assembly for the US/North American market to Vietnam while keeping most of their international MacBook Pro production at the existing Chinese factories? Of four unboxing videos I've seen of the 16" M5 Max model, the three units being opened by American uploaders were all Vietnamese assembled, while the one I saw from a German user was Chinese assembled like the one on its way to me.
I have seen several Vietnamese assembled M4 MacBook Pros in the UK with the ISO keyboard layout, so I don't think the Vietnamese factories are producing exclusively for the North American market.
I have seen several Vietnamese assembled M4 MacBook Pros in the UK with the ISO keyboard layout, so I don't think the Vietnamese factories are producing exclusively for the North American market.