Which router to choose for mobile Internet?

Question

network hardware

Hey!
Internet access is required through a mobile operator.
I select equipment, where I stopped:
1. a bunch of router + usb-modem .
Pros: Flexible approach, you can choose among manufacturers and models, you can refuse the usb-modem and use the router
separately (restrictions or hidden stones when setting up)
What I focus on: zyxel keenetic line + 4G LTE modem Huawei E3372h or Huawei B970b + 4G LTE modem Huawei E3372h
2. router with gsm "module on board" .
Pros: All in one, no possible device conflict.
Cons: the choice of devices on the market is limited, not a flexible approach, if the gsm-module is not needed - an overpayment of money
What I focus on: Zyxel Keenetic LTE or Huawei B315
Costs are about the same
What to choose: point 1 or point 2, which equipment has been experimentally tested with a ratio price/quality?

Answer 1

Mikrotik

Answer 2

Pingotel, look here

Answer 3

A month and a half ago, I took a Zyxel omni + usb huawei modem, chose it corny because of the availability of these components and lack of time.
Raised pptp, plugged in a modem with an external 2Mimo antenna and a couple of ip cameras, everything is tritely simple.
Flight is normal

Answer 4

Keenetic will be the best option in terms of price-quality-reliability-functionality.
We have been using them in our work for almost 5 years, with a minimum of complaints.