I own a Mi Band 4, which I bought as a Chinese version on AliExpress.
On the application Notify & Fitness for Mi Band, v8.9.5, I see that my band hardware revision is: v0.25.129.5.
Moreover, the latest firmware installed is the v1.0.5.22.
But, I think it is the China NFC version, as I have the "AliPay" option, with the QR code.
Hence, I would suggest a correction on the original post.
Disclaimer: this information was obtained from the application Notify & Fitness for Mi Band, v8.9.5.
If you have any other advices, or requests, for me to perform; feel free to reply to this message.
Cheers,