This Lenovo IdeaPad 3 15 Gaming Laptop, model number 82K201QMUS, ships with 8GB DDR4-3200MHz RAM (1x 8GB SO-DIMM DDR4-3200MHz RAM). There are two DDR4 SO-DIMM slots, dual-channel capable. The maximum RAM that this model configuration can support is: Up to 16GB DDR4-3200MHz RAM. We recommend you consult with your Certified Technician about your RAM upgrade options.

That will depend on the requirements and compatibility of the specific software you want to use. This Lenovo IdeaPad 3 15 Laptop, model number 81X800ENUS, ships with Windows 11 S-Mode 64-bit Operating System installed. Windows 11 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 11 Home 64-bit Operating System, at no additional cost. We recommend you check with the specific APPs software publisher's web sites, of the APPs you want to use, for their compatibility with Windows 11 S-Mode 64-bit operating system and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration. If you choose to switch out of S-Mode for Windows 11 Home: Here is a link to instructions for switching from Windows 10 S-Mode to Windows 10 Home: https://support.microsoft.com/en-us/help/4456067/windows-10-switch-out-of-s-mode

No. This Lenovo Yoga Tab 13 Tablet, model number ZA8E0015US, does not have a GPS Sensor. It uses WiFi Location Services for location. This WiFi Location Service will only function when the tablet is connected to a WiFi signal.

The internal battery can only be replaced at the factory.