A:AnswerHorrible... steer clear of this model (ux303ub) and company for that matter. Check out my review. My right hinge broke completely off the LCD side after just 3 months of daily use. I called ASUS and they made me pay to ship it back to them in California for repairs. This is a poorly designed machine.
A:AnswerYes, the RAM Memory is replaceable once you remove the aluminum back. also it has one slot only.
Check this full review of the Asus ZenBook UX310UQ-GL011T (Same device family)
http://www.notebookcheck.net/Asus-ZenBook-UX310UQ-GL011T-Notebook-Review.186921.0.html
A:AnswerThe battery of this model unit can last up to 7 hours. Please be advised that the battery life varies by configuration, operating conditions, and other factors. Maximum battery capacity decreases with time and use.
A:AnswerThis model unit comes with 1 year International Warranty. This warranty applies in the country of purchase. ASUS International Warranty offers 12 month limited hardware warranty service for parts and labor repair for select notebooks. Warranty service starts on the date of purchase and is only applicable within countries that have authorized ASUS Repair Centers. Excluding the following regions: South America and Latin America. Please visit www.asus.com for additional information. Not applicable on all units and subject to verification by ASUS.