Camera

The iPad 4 features a 5MP rear facing iSight camera and a 1.2MP front facing FaceTime HD camera. The rear camera shoots photos at 2592 x 1936, while the front facing camera shoots photos at 1280 x 960. The aperture and focal length of the rear facing camera haven't changed compared to the 3rd generation iPad.

Rear Facing Camera Comparison
  Sensor Resolution Compressed JPEG Size Aperture Focal Length
Apple iPad 4 5MP 2592 x 1936 3.4MB f/2.4 4.3mm
Apple iPad 3 5MP 2592 x 1936 3.1MB f/2.4 4.3mm
Apple iPad 2,4 0.7MP 960 x 720 344KB f/2.4 2.0mm
Apple iPad mini 5MP 2592 x 1936 3.1MB f/2.4 3.3mm
Apple iPhone 5 8MP 3264 x 2448 3.1MB f/2.4 4.1mm
Apple iPod Touch 5 5MP 2592 x 1936 3.1MB f/2.4 3.3mm

Still image quality out of the rear camera is comparable to the 3rd generation iPad, and clearly better than the iPad mini.


 

The front facing camera sees the biggest improvement over the iPad 3. The difference is like night and day thanks to the increase in sensor quality and resolution.


 

Front Facing Camera Comparison
  Sensor Resolution Compressed JPEG Size Aperture Focal Length
Apple iPad 4 1.2MP 1280 x 960 426KB f/2.4 2.2mm
Apple iPad 3 0.3MP 640 x 480 117KB f/2.4 1.8mm
Apple iPad 2,4 0.3MP 640 x 480 105KB f/2.4 1.8mm
Apple iPad mini 1.2MP 1280 x 960 372KB f/2.4 2.2mm
Apple iPhone 5 1.2MP 1280 x 960 400KB f/2.4 2.2mm
Apple iPod Touch 5 1.2MP 1280 x 960 406KB f/2.4 2.2mm

Video

The iPad 4 shoots 1080p video from its rear camera and 720p on the front. Video shot with the rear camera is encoded using H.264 (High Profile) at an average bitrate north of 17Mbps. This puts the encode parameters similar to those of the iPhone 5 and iPad mini. The same is true for the front facing camera.


The front facing camera shoots baseline video at roughly 10.5Mbps:


Video quality is pretty good as well:

WiFi Performance

Like the iPad mini and iPhone 5, the iPad 4 uses Broadcom's BCM4334 WiFi controller. The 4334 supports dual-band 802.11n as well as fallback to 802.11b/g. On 5GHz Apple continues to support 40MHz channels for a maximum PHY rate of 150Mbps. Performance and reception both remain solid:

WiFi Performance - iPerf

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  • Pazz - Thursday, December 06, 2012 - link

    Just noticed grammatical correction required for "An Matter of Cost and Timing". Reply
  • Alucard291 - Sunday, December 09, 2012 - link

    "Produce boring products" that really summarises apple in the last half a year or so. Reply
  • name99 - Sunday, December 09, 2012 - link

    Really? Not "produce products that will sell twice as well as their predecessors"?

    I'm sorry Apple is not entertaining you --- perhaps you did not realize they were not in that business? You might prefer to follow MS whose ups and downs over the next year should provide ample entertainment.
    Reply
  • danielfranklin - Thursday, December 06, 2012 - link

    Sorry Anand, ive just noticed the Ipad resolution on page is is listed as 2408 x 1536 instead of 2048 x 1536.

    Other than that thank you again for your reviews, your in-site and true technical breakdown is the best on the internet, you have been my favorite reviewer since this site started.
    Reply
  • danielfranklin - Thursday, December 06, 2012 - link

    Page two that is meant to read.
    Looks like its going to be that kind of day.
    Reply
  • whodakat - Thursday, December 06, 2012 - link

    Google really impresses me. It has to be hard work to pack in all the best specs and still get your ass handed to you. Reply
  • coder543 - Thursday, December 06, 2012 - link

    in what way? I would argue that the Nexus 10 is a much better tablet. Stereo audio instead of mono, support for multiple separate users (excellent for families), a Proper aspect ratio... one appropriate for actually consuming media, unlike that iPad. A dedicated HDMI out is a nice touch. There are many, many things I could list. I'm really not even sure what you're talking about in your comment -- color calibration? I'm sure that will be the first thing most consumers check... Reply
  • EnzoFX - Thursday, December 06, 2012 - link

    There isn't one that is clearly better. The iOS and app store is the biggest thing the iPad has for the average consumer. Proper aspect ratio? Who are you to say what's proper? lol Seriously though, it depends on WHAT you're consuming. 4x3 is ideal for reading, that is books and web browsing. THIS is why Apple sticks with 4x3, and it makes COMPLETE sense. Most of what people do is consume webpages, not videos. Webpages are the focus, and rightly so. I always say, if you want a more serious movie device, watch them on your TV. haha. Color calibration isn't something to check, you notice it right away by looking at it, that it's a more realistic representation of photos, etc. Your arguments are severely flawed, but yes the Nexus 10 is a comparable device and worthy of consideration. Reply
  • Zink - Thursday, December 06, 2012 - link

    Tablet is for reading, LCD in living room is for TV and movies. The iPad and HP Playbook at 4:3 are doing it right. 10" 16:10 is ok, just not after adding in soft keys and notification bar that cut down landscape height. Reply
  • coder543 - Thursday, December 06, 2012 - link

    HP doesn't make the playbook. Making random observations doesn't impact anything, as reading on 16:10 is extremely feasible. Reply

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