Many thanks for the advice! This has been forwarded and should be adjusted as soon as possible.

In Vietnam where Samsung has a factory.

Can't really tell if there's a noticeable difference between models as I just board into Samsung with the A72. I feel the fingerprint sensor is kinda wack, most of the time it doesn't recognize my fingerprints. As for the screen brightness, I feel it is good enough.

Hii :D This mobile phone supports Hybrid Dual SIM. This means either two physical SIM cards or one SIM card and one SD card. Unfortunately, you will not be able to use eSIM with this device. Grüäsli

Hello. yes it is the same size

No idea, Sorry. Ask Samsung

ciao Remix1019 Well, components need space inside the device. If you want to fit more, the phone gets bigger - or you cut back on other components. For example, the A72 has a 500 mAh bigger battery than the A71. The cameras also look bigger from the pictures. So, with practically the same product dimensions, you either have to a) make it a little smaller or b) leave something out. Alternatively, of course: thicker and bigger. I wouldn't mind a thicker phone with a bigger battery ;-) But sure, I can understand you. Luckily you have a choice and can still buy the old model :-)

You've got it wrong. The 8MP camera (tele) has 3x optical zoom, not digital, without loss of quality. The 64MP main camera has no optical zoom.