This Lenovo Legion Slim 7i 16 Gaming Laptop, model number 82TF000RUS, ships with a 16 inch (screen size measured diagonally) IPS - WUXGA (1920x1200) screen, with a brightness level of 300 nits, has an Anti-glare Coating, a refresh rate of 165Hz. This screen provides 100 Percent of the sRGB color gamut for excellent color accuracy, is both Dolby Vision and G-Sync Certified. This screen uses DC dimmer for added eye care.

That will depend on the requirements and compatibility of the specific device model you want to connect to this Lenovo IdeaPad 3 15 Laptop, model number 81X800ENUS. This IdeaPad 3 15 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 device manufacturer's web site, of the specific model device you want to connect, 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 11 S-Mode to Windows 11 Home: https://support.microsoft.com/en-us/help/4456067/windows-10-switch-out-of-s-mode

This Lenovo ThinkPad Universal Thunderbolt 4 Docking Station, model number 40B00135US, will support up to: 100W Power Delivery, A Single 8K Display @30Hz or up to 4 (four) 4K @60HZ display support.

No. A Open-Box version of this Lenovo IdeaPad 3 15 laptop, will have whatever time remains on the original 1-year limited manufacturer's warranty.