depende sa smartphone, the higher chipset power, the higher LTE category,
example: POCO F3 has Cat 24, but don't have band lock feature dahil Qualcomm Snapdragon
however, Mediatek devices pwede
kapag sa modems, halos may band lock feature na pagpipilian but most of devices have lower LTE Category, kusang dyan lang ang data speed, also carrier aggregation affects the data speed, cellsite capability