I just purchased Gteniq IQ02X55 ver2 5G router at Shopee (price after discount about RM805).
Been running for few days and I am so satisfied with it.

Now NO MORE frequent auto reboot compared to my old ZTE MC888s free router by umobile.

been getting consistent ~450Mbps DL ~50Mbps UL with 17ms ping.
5G tower is just ~1km from my home in Jitra Kedah.
Can lock bands too.
This is just using the internal antennas (2x WiFi, 4x 5G). Gteniq can use outdoor parabolic antennas as well, but with the good signal strength I'm getting (-85 dBm LTE, -90 dBm 5G), I think no need for outdoor antennas.

As i understand, this Gteniq 5G router is using Qualcomm Snapdragon X55 chipset, which is the same as my wife's ZTE MU5120 portable 5G MiFi router.
Very stable, cpu & wifi temperature under its WebUI shows below 50 deg C during operation.

But I do have UniFi fiber line as main internet.

the 5G serve as backup and to offload 50% IoT devices riding on my main ASUS AX82U router.

last time i bought at shopee at this particular shop called sing4g.
Bought last year at RM1,620  .
But it's a good device nonetheless and so far my wife never complain anything about slowness, no signal, auto reboot or etc.
but no more stock it seems.

you could try this shop but they ship from china.
so far got good reviews though.
still expensive though: RM1,328 excluding shipping

ZTE MU5120

one shop got local stock, selling for RM1,099 but that shop's got no rating even though been selling for 7 years in shopee. No one has bought there too so I don't recommend you though.

RM1099 zte mu5120