It was raining tablets at CES 2011, displaying more points of parity rather than disparity, making buying tablets an arduous task.

However, in spite of a flood of tablets some key events punctuated the event, which included the launch of Android 3.0 or codenamed Honeycomb. Also, Windows 7-based tablets were released that are powered by Intel's Atom processor which has been specifically designed for tablets and smartphones.

Dell Streak 7 and Lenovo LePad were some of the high profile launches for Android 2.2 or Froyo. For Windows 7 some launches that impressed were ASUS Eee Slate EP 121, Lenovo IdeaPad Windows 7 Slate and Motion CL900. There were multiple Android 3.0-based tablet launched but it's the Motorola Zoom and ASUS MeMo which impressed.

The key distinguishing factors were the OS and the processor while other features seemed to be similar with some tablets like ASUS MeMo also adding a stylus for navigation purposes.

Here is a comparison of the key Android 3.0, Android 2.2 and Windows 7-based tablets that were showcased at CES 2011: 

 Specifications

Motorola Zoom

ASUS MeMo

Lenovo LePad

Dell Streak 7

ASUS Eee Slate EP 121

Lenovo IdeaPad Windows 7 Slate

Motion CL900

OS

Android 3.0

Android 3.0

Android 2.2

Android 2.2

Windows 7

Windows 7

Windows 7

Processor

Nvidia Tegra 2: Dual Core 1Ghz

Qualcomm  1.2 GHz

Qualcomm  1.2 GHz

Nvidia Tegra 2: Dual Core 1GHz

Intel Core i5 470UM

Intel Atom Oak Trail 1.5 GHz

Intel Atom Oak Trail 1.5 GHz

Display

10.1-inch

7-inch

10.1-inch

7-inch

12.1-inch

10.1-inch

10.1-inch

Resolution

1280x800

1024x600

1280x800

800x480

1280x800

1280x800

1366x768

Memory

32 GB

16/32/64 GB

16 GB/ 32 GB

16 GB

32 GB/ 64 GB

32 GB

30 GB/ 62 GB

RAM

1 GB

N.A

1 GB

512 MB

2 GB/ 4GB

2 GB

2 GB

Video Capture

1080p

1080p

N.A

N.A

N.A

N.A

1080p

Camera

5MP rear, 2MP front

5 MP rear, 1.2 front

2 MP

5 MP rear and 1.3 MP front

2 MP

2 MP

3 MP rear and 1.3 MP front

Battery

10 hrs

N.A

8 hrs

N.A

N.A

6 hrs

8 hrs

Weight

1.6 lbs

0.8 lbs

1.6 lbs

1 lbs

2.53 lbs

N.A

2.1 lbs