If we have a smartphone and a traditional  laptop ( without 4G LTE and without 5G ) ,  in order to get high speed Internet access for our Laptops , we need to tether our smartphone to our laptop . Similarly , if we have a smartphone and a traditional  laptop ( without 4G LTE and without 5G ) , and if we want to make phone calls through our Laptop or reply phone calls through our Laptop , we still need a Smartphone . Tethering  our smartphones ( 4G or 5G )  to our laptop to get high speed Internet access for our Laptop and to make/reply phone calls through our laptop , will drain the batteries of our 4G or 5G Smartphone .  But if we have a 4G LTE Cellular Laptop or a 5G Cellular Laptop , like for example the [ 15.6 inches  Touchscreen  “ 360 degrees foldable “  INTEL-based   Linux  5G  Cellular Laptop with built-in DVD-RW Player ] , that operate like a Smartphone , high speed Internet access at 4G speed or 5G speed can be obtained easily anywhere , everywhere, anyplace , anytime ,  and  at the same time we can also make telephone calls to any landline telephone and to any Smartphone and receive telephone calls from any landline telephone and from any Smartphone. As a result , no tethering is required. No smartphone is required . And with that  15.6 inches screen size and form factor , conference , video call , studying/working from home and entertainment has never been better with this machine .