You have to test at your location with your devices. Everything else are just assumptions.
I did many tests with True, AIS, Dtac, NT Work & Learn, NT Thunder, with 2 different SIM routers (CAT 4 & CAT 6), different tablets and phones and even at completely different locations in Pattaya. It is not so easy. For instance if you move the router to a different position in your condo you might/will get different results already. And then the time of the day, the day of the week and even the weather.... I posted a very long story about all this in this forum...
The question of course is whether you want to find the best option or just something good enough for your purpose. In the latter case it is much easier ????.