Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Is the battery user replaceable, and is RAM easily upgradeable?
Document: It also has a relatively narrow vertical viewing angle (though you can easily adjust the screen); horizontal viewing angle is more forgiving (about 45 deg. before artifacts are noticable, and usable up to about 60 deg. )- Only comes with 4GB of RAM. That can be upgraded to 8GB for $30 or so, so it wasn't not a major disadvantage for me... but...- To upgrade the RAM, change the battery, etc., you must (carefully!)
You will need to wipe off the machine daily or it will look like it is owned by a recent winner of a potato chip eating contest. Performance for a 'typical' (if there is such a thing) user is good. The boot SSD provides rapid startup time and the processor and RAM are definitely adequate for most users (not talking video editing or high-end gaming here....). The display is clear and bright with good viewing angles.
As a 14 inch laptop, I think this is fine as it isn't made for group use and a single user will be more than happy with the screen. I ran some 1080p video on the computer (although the screen is 1366 x 768) and it handled it easily and looked great. 14 inches is a good size; 15 inch is too large to carry around and 12 is too small.
)Neutral:- The RAM is a little low for me, I would have liked to see 6GB or even 8. But 4GB does get the job done for me now, and the RAM should be fairly upgradeable (to a max of 16GB) for users who aren't afraid to open up their machine. The 4GB is a single DIMM which is nice for upgrading.- The webcam is neither wonderful nor terrible. The microphones are better than the video in my opinion.- There is no optical drive.
Approximately five hours seems to be more accurate. This is unfortunate; the benefit of a light computer means you can carry it anywhere and hardly notice it. Once you get there, just hope it's fully charged, you find an outlet, or can use it with the battery saving settings.Note: I'm not qualified to comment on performance, but the Envy is certainly fast for the Internet/word processing I've used it for.Conclusion - The Envy is a wonderful computer for the right user.
This is a pretty good computer for the money.Pros:  Starts up fast, operates quickly tech specs nothwithstanding,  looks great, is light, has a great back lit keyboard, can be cleaned up of stickers and most unnecessary software reasonably easily and is I think a good deal for the money.Cons:  Battery life is not what I hoped.
Real world multimedia use, at full brightness, comes up to about 4-5 hours of usage.- The battery is not easily removable, in case you decide to have a really long session with it plugged in the whole time.- Should have a somewhat illuminated trackpad, at least around the edges, to go with the illuminated keyboard.- The "FN" alternative to the F1-12 hotkeys are locked ON by default.
I will continue to look for setting for this since HP calls it HD and, and if I find them, I'll update this review. In any case, it should work great out of the box, and it doesn't.As computers get thin, like this one, we give up some things, like the optical drive. We also typically give up the ability to easily upgrade the computer. There is no door for the hard drive, battery, or memory.
Of course this is also common and somewhat hard to avoid. Several programs are easily uninstalled, but HP software should be treated with a bit more care. After a bit of time removing start up programs and advertisement-shortcuts, the computer feels a lot less bloated.I wanted a new laptop to replace my outdated one. In particular, I needed portability, looks, battery life, and performance, and I didn't want to give up features. This ultrabook was the perfect compromise.
Don't expect the speakers to be anything special, and plan on spending an extra $100 to upgrade your RAM.
Answer: Once you open the case by removing some screws, both can be easily upgraded/replaced.