As of today , July 2022 , a true Mobile Laptop ( 4G LTE or 5G ) or a true Cellular Laptop ( 4G LTE or 5G ) , in my opinion ,  do not require a Smartphone to intervene in order to get high-speed Internet access ( tethering a phone to a laptop ) and to make phone calls and receive phone calls . Nowadays , July 2022 , with the advent of 5G and IoT , and with the new modern laptops , tethering a phone to a laptop in order to get high-speed Internet access on a laptop and to make phone calls and receive phone calls on a laptop , ARE GONE . As of today , July 2022 , whatever we do on a Smartphone can also be done on our 4G LTE or 5G Mobile Laptop , on our 4G LTE or 5G Cellular Laptop  but on a bigger screen  due to the    hardware/software/systems      integration  which combine a  Laptop, a  Tablet and  a   Smartphone into one device , into one machine [ 1 2 ] . As a result , there is no need to purchase or buy or carry a Smartphone because the Cellular Laptop is the Smartphone [1 2 ] .