Speaking of OnePlus, why do chinese brands not include cellular in their tablets? Very few chinese tablets (at least the global versions) have biometric fingerprint sensors or 5G.
The OnePlus tablet 4 would be amazing if not for the corners they cut..
Cellular modems are huge, complex, draw tons of power and have high price tags. In the market that is already cutthroat to the extreme I can 100% see why they'd skip it.