Very honestly, but Samsung and LG are just money hungry companies without caring what they offer to customers, all they care is just how to have big marketing to have a phone "look like cool" and "look like having cool tech stuff" to sell as many as possible, here are some examples:
Samsung face unlock can be fooled with a photo, and this happened in the last generation of phone, and they don't care and put the exact same stuff in the current phone. They don't care the security part at all because that may not helps them to sell more phones!
LG G6, V30 camera sensor is worse than many years ago G4. The sensor size is so small that a lot of phone front camera is even bigger sensor than G6/V30. The wide angel sensor of V30 is so small that there is no way to take a reasonable photo in not enough light situation, even the cheapest phone nowadays would not use that crazy small sensor.
Samsung face unlock can be fooled with a photo, and this happened in the last generation of phone, and they don't care and put the exact same stuff in the current phone. They don't care the security part at all because that may not helps them to sell more phones!
LG G6, V30 camera sensor is worse than many years ago G4. The sensor size is so small that a lot of phone front camera is even bigger sensor than G6/V30. The wide angel sensor of V30 is so small that there is no way to take a reasonable photo in not enough light situation, even the cheapest phone nowadays would not use that crazy small sensor.