In my opinion , for those who are involved in making this   " DIY Smartphone Laptop "   project , they : 

1.   should  take great pleasure in making sure that the  laptop has a screen size of  15.6 inches  ,

   

2.  should  take great pleasure in making sure that the Laptop can be folded  360 degrees , so that it can be a  15.6 inches Laptop if we want to , and it can be converted into a  15.6  inches Tablet if we want to . In my opinion , in terms of user experience ,  a  "360 degrees foldable" Laptop is much better than a  "detachable"  Laptop .

 

3.  should  take great pleasure in making sure that the Laptop is using INTEL processor/microprocessor, and running one of the most user friendly Operating System   on the planet  Earth , which is , the INTEL-based Windows Operating System(Windows 10 OS or Windows 11 OS)  or the INTEL-based  Linux Operating System(a good example is  UBUNTU TOUCH  1  2  3) .  In my opinion , Wintel is still the best  hardware/software  solution , regardless whether it is a  PC/Desktop , or a Laptop or a Tablet or a Smartphone or a SmartTV or an Engineering Workstation .  

  

5.  should  take great pleasure in making sure that the  laptop has a DVD-RW Player  [ 1 ]  built-in ,

  

6.  should  take great pleasure in making sure that the  laptop  come with an embedded 5G modem [ 1 2 3 4 5 6 7 ] and has a  5G SIM Card Slot , and that 5G Laptop must have a phone dialer and when we subscribe to a  Cellular Data Plan [ 1 ] that come with a phone number or a personal phone number , we can dial a phone number on the 5G Laptop just like what we do on a 5G smartphone , so much so that we can use that 5G Laptop to make phone calls and answer phone calls directly on that 5G Laptop ,  just like a  5G smartphone .  Sometimes we do not want to make a VoIP  call using a Mobile App like WhatsApp on our 5G Laptop , we have a phone number from someone  and we just  want to dial that phone  number on our  5G Laptop ,  just like a  5G smartphone .

Currently , as of today October 2023 ,  all  5G Laptops (eventhough they have a 5G modem card built-in) in the market cannot   make/reply   phone calls like a  5G smartphone , regardless of the Operating System being used , regardless  whether it is INTEL-based or ARM-based . 

In my opinion, the reason is because the   network providers/carriers/telcos    dictate which  devices(5G Smartphones, 5G tablet, 5G laptops, 5G USB Dongle, etc., etc.) can   make/reply    phone calls(can utilise VoLTE or can utilise Vo5G/VoNR) and which devices(5G Smartphones, 5G tablet, 5G laptops, 5G USB Dongle, etc., etc.)  cannot   make/reply   phone calls(cannot utilise VoLTE or cannot utilise Vo5G/VoNR) or perhaps , it may be that the    network

 providers/carriers/telcos     do not want to  support  voice calling  like a 5G smartphone ,  in a 5G Laptop and 5G USB Dongle and finally they said ,  " 5G Laptops and 5G USB Dongle   was not originally intended for phone calls like a 5G smartphone " .                                       By God's Grace ,  hopefully , in the not too distant future , this might change .

For me , it would be great if  all 5G Laptops(regardless of the Operating System being used , regardless whether it is INTEL-based or ARM-based) and all 4G Laptops(regardless of the Operating System being used , regardless whether it is INTEL-based or ARM-based) and all 5G USB Dongle(when connected to any Laptops , when connected to any Tablets ,  regardless of the Operating System being used , regardless whether it is INTEL-based or ARM-based) can make phone calls and reply phone calls just like a 5G smartphone , just like a 4G smartphone .

  

In my opinion , the main criteria in doing this  DIY  15.6 INCHES  SMARTPHONE Project(or  DIY SMARTPHONE LAPTOP Project) is TO BRING ALL THE  IMPORTANT  SMARTPHONE            HARDWARE/SOFTWARE     FEATURES TO THE LAPTOP AS MUCH AS WE CAN , especially a feature whereby we can make phone calls and answer phone calls directly on a Laptop , just like a 5G smartphone .

 

This  " DIY  15.6 inches Smartphone "   project , if prove successful  , this machine has an excellent value for money, considering it can serve as a Laptop , it can serve as a Tablet and , above all it can serve as a Smartphone, and all are being done on a      15.6 inches screen size.