The Xiaomi Redmi Note 7 Pro is a good option to buy in the mid-range budget. The configuration of the smartphone quite good to perform well. The smartphone comes with huge storage space for storing a large amount of data or files. The camera quality of the smartphone is very good for clicking good images and videos. However, it has a hybrid slot, which is not preferred by many users.
To see the complete specifications of this device: Xiaomi Redmi Note 7 Pro
List of service centers: List
Yes, the Asus Zenfone Max Pro M1 does support dual 4G. The 4G Band supported by the device are TD-LTE 2300(band 40), FD-LTE 1800(band 3). These days all the smartphones supprort 4G and VoLTE.
You can also check the complete specs here: Asus Zenfone Max Pro M1