It sounds like what you have is a capacitive touch stylus. It has no active/digital function. You could use this capacitive touch stylus on the Lenovo Yoga 730-13 as a replacement for your finger. What you will not be able to experience with this capacitive touch stylus, is the Windows Ink/Write On The Screen active/digital pen capability that is contained within the screen of the Yoga 730-13. You will have more Write On Screen functionality by using a compatible active/digital pen with the Yoga 730-13.

Yes, the Lenovo IdeaCentre A340-22 All-In-One system has built in 802.11AC frequency WiFi capability.

Yes, this model has two standard USB 3.0 ports and one USB-c port.

The Lenovo IdeaPad 130S-11 laptop has a 300p Web cam and microphone. There is a 1-year free subscription to Microsoft Office 365. To keep the program active after the 1-year, you will need to purchase an extension to the subscription. The Lenovo IdeaPad 130s-11 laptop is an entry level, light use system with its Intel Celeron processor, 4GB of RAM and a 64GB eMMC solid state hard drive. It ships with Windows 10 S-Mode Operating System for added security (you can switch to Windows 10 Home 64-bit Operating System at no additional cost, if you don't need the added security of S-Mode). It is not meant for multi-tasking or demanding programs. It is good for Microsoft Office and light internet browsing. The IdeaPad 130s-11 laptop ships with a free 1-year subscription to Microsoft Office 365 (a $69.00 value). If this describes your computing needs, the IdeaPad 130s-11 laptop would be a good choice.