Where to get vn700+ locally? I just know China have it.

Looking for options for a new budget 5g modem as my VN007+ is facing a weird problem
Previously I was using it at 4G only area, and manage to reach 50-80Mbps download on U Home 5G
Now I’ve transferred to a city with 5G coverage, but only manage to average 30-50Mbps download and upload on speedtest.
I know it’s not the sim problem because using the same card with Olax MF650 gets me minimum 250Mbps download on speedtest as well.
And a weird thing is after i perform factory reset on the VN007+, the speedtest can reach 270Mbps, but only for about 5 minutes 
In the meantime using my UHome 5G with the MF650

Currently looking at Nokia Fastmile 3 (saw it listed as under 500 recently on shopee)
And NX200

Any suggestion on which to use?
Hi. Do you know what chipset does the nx200 use?
Currently using Olax MF650, pretty happy with its battery life and speed. Size is also very portable and lightweight
Only disadvantage I can think of is that the battery is not easily replaceable

It's already connected to 28/78, but still gives the handicapped speed. Unfortunately VN007+ doesn't have band lock function