HDMI Mirroring

With the iPad we complained that the A4 didn't seem to include any form of digital video output, only analog outputs were supported. The A5 and the iPad 2 both rectify that as Apple now offers a $39 Apple Digital AV adapter that gives you HDMI out directly from the iPad 2.

The Digital AV adapter is a bit clunky and I believe the future of this is clearly in some form of wireless transmission, but for now it plugs directly into the dock connector. Apple had the foresight to build in a second dock connector into the dongle so you can keep your iPad 2 charged while you're mirroring it's display.

With the adapter connected HDMI mirroring just works as you'd expect it to. There's no setting you have to enable, just plug it in to your display and you're good to go. The iPad desktop is upscaled to either fit your display or it'll appear as a box in the center of your panel.

I tried the AV adapter with three different displays: a 720p Pioneer plasma, a 1080p Samung LCD and a 1920 x 1200 Dell PC monitor. With the 720p and 1080p displays I got an upscaled box in the center of the screen

On the 1920 x 1200 Dell panel I got an upscaled image that took up the total height of the screen:

In all cases Apple maintains aspect ratio.

What about functionality? Everything you see on your iPad you see via the HDMI output. If the keyboard appears on your iPad it'll appear on your HDMI display. Personally, I would like to be able to have the iOS keyboard visible on the iPad 2 but not on the image sent over HDMI. Currently it's a pure clone setup...mostly.

If you try to play video while connected to an HDMI you won't get a mirror instead you'll see the video full screen on the external display. This is true for Apple's own video player app as well as 3rd party apps like Netflix. Note that while playing a video you will only see it on the external display, not both.

Audio is passed exclusively via HDMI as well, the internal speaker is shut off.

Battery life takes a significant hit with the HDMI output enabled. While you'll see that our typical usage tests can easily hit 10 hours, over HDMI you can expect battery life closer to 8 hours. It's still not bad but definitely a larger impact than I expected.


HDMI mirroring on the LG Optimus 2X

HDMI mirroring isn't exclusive to Apple, we first saw it appear on LG's Optimus 2X and later on other Tegra 2 devices. While HDMI mirroring turns your iPad into a portable Netflix machine, it also turns it into a semi-dockable PC. The limitations I mentioned earlier still exist. There's no mouse support and multitasking is a pain compared to a full blown PC, but this is just the first step. If all you've got a light usage model and just want a more ergonomic setup at your desk, there's no reason you can't connect to a standard HDMI display and use the iPad 2 as a glorified keyboard/pointing device.

What I would like to see going forward is support for some sort of a pointing cursor within iOS while connected via HDMI - only on the external screen. The same white circle that's used in Apple's demos would work just fine here.

The question I have to ask is whether tablets based on smartphone hardware and OSes are going to become powerful enough to double as portable PCs or are desktop OSes going to become lightweight and efficient enough to run on smartphone class tablet hardware? The latter seems to be Microsoft's strategy with Windows 8. Unify the software and allow it to run on all platforms, while the former is where Apple is presently headed with the iPad. It's clear to me that convergence between desktop and ultra mobile OSes will happen at some point, I'm just unsure which side will lead the merger.

Charging

The iPad 2 uses the same 10W USB wall charger in combination with a 30-pin dock-to-USB cable as the original iPad. The benefit here is any iPad/iPod/iPhone 30-pin dock cable will charge the device (assuming your USB port properly implements the battery charging spec). On the flip side, even with the 10W wall charger you're looking at ~ 4.5 hours to get a full charge on the device. Charging via the PC is even slower - it'll progress at roughly half the rate as you can get via the wall charger. Note that like the original iPad you'll need a USB port that implements the battery charging specification in order to charge from your PC/Mac. All of the new Mac notebooks seem to implement this spec (2010 MacBook Pro, 2011 MacBook Pro, 2010 MacBook Air) and had no problems charging the iPad 2.

The Xoom by comparison avoids this problem. The USB port on the Xoom is only used for syncing, there's a separate dedicated port for the wall charger. As a result you'll get a full charge on the Xoom in 3 hours.

Battery Life The Cameras: UI and Placement
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  • Shadowmaster625 - Monday, March 21, 2011 - link

    If that is true then why not focus on that? I still have yet to read anything on anandtech about remote desktop on a tablet. How powerful does a tablet need to be to stream 1-2 mbps compressed images of my desktop over wifi? I can skin my desktop to make it look more like a mobile OS. Touch commands can be fairly easily emulated and transposed into mouse commands. Audio doesnt require much bandwidth. Only video would present a problem, but even then it really doesnt take all that much hardware to play a video. Yet all I see are horrible implementations of remote desktop.
  • marc1000 - Monday, March 21, 2011 - link

    i remember reading here at AT that the Nokia N8 could be used to drive an HDMI display and hooked to an keyboard/mouse, to "simulate" a pc-like experience . and now the Ipad2 does the same thing, but 1 year later.

    IMHO all that apple does is beautifull, but they charge the price for the "beautifullness" of their products.

    well, I just want a tablet/smartphone that works, so I will wait until these prices drop... until then I will live with my Htc HD (1st gen.. ugly!)
  • Watwatwat - Monday, March 21, 2011 - link

    almost feels like i learned something:D
  • Jayman30 - Monday, March 21, 2011 - link

    Maybe the iPad doesnt fit into a busy techbloggers "workflow" but as a consumer device it's an incredible gadget. My ipad 1 is used daily and has never sat on a shelf unused for more than a few hours. I reach for it first instead of my iPhone or clunky Gateway laptop for 90% of my daily computing needs. It has incredible performance, portability, battery life, and overall utility.

    I can buy & read books, download and play great games, movies and music quickly and easily. Great Email and web surfing are just icing on the cake! Works great for me!

    FYI. iPad 1 costs $399 now.
  • cotak - Tuesday, March 22, 2011 - link

    I am with the staff at anand. I use an iPhone 4. It's nice fo getting a little reading of news etc done. And I have looked at the iPad and I have consider getting one. And likely I will have one but not for myself. It'll be too limiting for me to use. For my fiancee though it's perfect since on a regular week she can go 5 6 days without powering up her computer.

    So is there s market for tablets? Maybe but I don't think it's big as various peope like to think it could be. And the fall out from that might be pretty big. Nvidia's betting on it, moto has only recently make it back into the black, and rim seems to have concentrated on the playbook over improving their last series of phone release. So maybe some of these players might not be be best stocks to hold for the medium term...

    Anyhow tablets are useful for light use. But for people who use their devices/technology enought to justify spending regularly on technology, it might be too small and too slow. And really isn't the repeat buyer the important one I the market? My fiancee could get a iPad 1 and happly use it for the next 6 years without considering buying a new one. If people like that are the market, it's not going to be as big as some people in wall street seems to think.
  • vshin - Tuesday, March 22, 2011 - link

    The one thing I'm surprised that isn't getting as much coverage is that small text is actually harder to read on the Ipad 2 than on the Ipad 1. Some folks chalk this up to being "spoiled" by the Iphone 4's retina display but it's actually because Ipad 2 implements heavy use of anti-aliasing, which can't be configured or turned off. I find my eyes tiring very easily as I browse the web or read on iBook in portrait mode.
  • speedkills - Tuesday, March 22, 2011 - link

    I noticed over and over in the review people came back to the point that the current app switching functionality is a very poor user experience. It's too bad Apple isn't enabling the multi-touch gestures for multi-tasking by default as they work very well and while they are not for general release it would be nice to see Anandtech weigh on them to see if they feel they should be included in iOS 5 or if they feel a better implementation is needed.

    Personally both my girlfriend and I have been using them and absolutely loving them. A four finger swipe up shows the multi-tasking bar instead of having to use the double-tap but 95% of the time a simple four finger swipe left or right is sufficient swapping between your most recently used apps. It makes it very easy to do something like copy a bit of text out of a web page, swipe over to Evernote and make a note, then swipe back to Safari and continue surfing.

    It's really too bad Apple chose to hide them by default (my guess is they want to save them for the iPhone release to make iOS 5 look like a bigger jump in functionality) because they are a great and much needed addition to the iPad 2.
  • Mac Ike - Tuesday, March 22, 2011 - link

    First of all this was great and extensive review,thank you very much! I have used Windows computers everyday at Work since Windows 3.1,I enjoy all Computers,but Macs are more stable more elegant,easier-to-use,and hold their value longer! I'm not trying to make Windows-users/lovers change to my preferences. I have not purchased an ipad yet,even though I can see many uses for it,and enjoy using iPads. I want ALL OF THE POWER I could possibly need with me,at all times,so I carry my 17-inch MacBook Pro for those times; when not practical I carry my iphone 4. Serious workloads might send me to my imac,it deprnds on ehere I am and what i need to do or what I can do in the environment that I'm in.
    Since I enjoyed the ipad 1,it only stands to reason that I would enjoy ipad 2,because the speed increase,cameras,weight-reduction,...can only enhance the experience! I am always amazed by the rude,idiotic,self-centered opinions and insults expressed on these Forums! If YOU don't want or need an ipad (or iPhone/Mac),then buy what YOU like! Why insult someone else,for THEIR DECISIONS or PURCHASES?? it's almost always a cheaper or alternative choices you can make. I give less than a Damn if you like another brand more,or feel that Apple's prices are too high!! If you want a cheaper computer,don't need a tablet,can't see the value of design/workmanship/elegance of OS &Hardware,hardware-software integration,good,buy your low-priced,cheap shit,and leave the rest of us alone,so that we can enjoy what WE LIKE! I don't ask any Apple-Haters or Fence-Sitters to purchase my products for me,so it's just amazing how people feel that you're an Apple-Fan Boy or Girl if you prefer Apple products! If I want a $60,000 Car,and you feel it's worth it(V-8 or not),and you can get a car for $20,000,why should your choice determine mine?? If you Windows-trolls don't like Apple-gear,why come to Apple-topics to complain about SOMEONE ELSE's choices?? Rude,immature,and Stupid!
  • rice2999 - Tuesday, March 22, 2011 - link

    Dear anand

    There is nothing about screen brightness setting to go with the battery life testing. Did you use 50% default brightness? Xoom screen is dimmer than ipad/ipad2. Though it can be argued, it is not exactly fair to compare battery life while the screen is on different brightness, since screen is probably the one uses the most battery.

    I forget where I saw it, someone else actually used a meter to measure the brightness and adjusted the brightness to the same before testing the battery life.
  • Sabresiberian - Wednesday, March 23, 2011 - link

    Every editor said what I've been saying all along about tablets - they are coolz toyz, but when people start trying to use them, they will find they aren't as handy as either a laptop or a smartphone and they'll be returned or be gathering dust somewhere. Except for niche uses, such as book readers and possibly media device controllers in the home, something like that, tablets are a fad - in my opinion, of course.

    That being said, they do have innovative technologies I think notebook manufacturers should pay strong attention to and add to their products (netbooks and notebooks). There are things the netbook/notebook can do a tablet's form factor prohibits (add a keyboard to a tablet and it really isn't a tablet any more now, is it?), but there is no reason the notebook should lack any feature a tablet has (except to save money on very low-priced budget models).

    As to this thing having enough power to replace a "mainstream" computer if attached to a monitor and keyboard - right. I'll run out right now and buy one to play World of Warcraft on - or isn't that "mainstream" enough for you?

    Won't be long now and a device this size will be able to replace what we consider to be a power-house PC these days - but then what will the power-house PC build be like then?

    ;)

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