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Toshiba PA3788U-1BRS Battery,Charger
The Lenovo IdeaPad A1 is examined extensively with the precision tool and luminance meter, ( Toshiba PA3817U-1BRS Battery,Charger ) Gossen Mavo Monitor, in the measurement lab. In our 9 zone luminosity measurement, we determine a maximum of 208 cd/m2 in the center when the screen is set to its highest brightness level. We measure a maximum black value of 0.32 cd/m2. The contrast of our touchscreen is 650:1 and beats, for example, the Prestigio Multipad PMP5080B with a contrast of 421:1. The average brightness of the Multipad PMP5080B is 174.5 cd/m2 and has an illumination of 75%. The IdeaPad A1 (185.6 cd/m2) can score here, but it doesn't stand a chance when compared with more expensive tablets that have at least 350 cd/m2 (e. g. Sony Tablet P). Consequently, the display's rating is also fairly low (64%). ( Toshiba PA3818U-1BRS Battery,Charger )
We are both surprised and satisfied with the test device's contrast. ( Toshiba PA3819U-1BRS Battery,Charger ) The tablet is about on a par with contenders of this price-performance range. Naturally, the maximum and average screen brightness can't and shouldn't be compared with screens from a higher price range. For example, the Blackberry Playbook achieves a maximum screen brightness of 500 cd/m2 and an average brightness of 491.3 cd/m2. This is only a dream for current tablets around €200.
However, like many current tablets, it has major problems with readability of content in sunlight, but not only because the display is reflective (glossy). The screen's brightness also makes outdoor use difficult. A bit of concentration is necessary to read the content, and the viewing angles have to be readjusted frequently so that everything remains visible and legible. ( Toshiba PABAS227 Battery,Charger )
Turned offThe viewing angles are stable from a lateral point of view (left and right). However, the colors fade a bit. ( Toshiba PABAS228 Battery,Charger ) Content becomes difficult to recognize at an angle of about 45° up or down. Moreover, the colors fade very evidently. Since the Lenovo IdeaPad A1 doesn't have an IPS screen (iPad 2, Samsung Galaxy Tab 10.1, Motorola Xoom), the color quality and the visibility of the content is very dependent on the respective viewing angle, as can be seen in the following picture. ( Toshiba PABAS229 Battery,Charger )
The ARM Cortex-A8 (1.0 GHz) single core processor works together with a 512 MB LP DDR RAM and Nvidia graphics chip. This processor is currently often found in tablets such as the Archos 101 Internet Tablet, Archos 70 Internet Tablet, as well as in many smartphones. However, high expectations shouldn't be placed on this hardware combination. The memory capacity is small and soon finds its limits in various applications. ( Toshiba PABAS230 Battery,Charger )
The one or other reason for complaint can be found during normal use. For example, the IdeaPad A1 needs a second before the first sign of activity is seen on the display when the power button is pressed when it's in sleep mode. Stutters are noticed when scrolling in the menu and when swiping through the home screens. Some apps are also opened with a slight delay. ( Toshiba PA3780U-1BRS Battery,Charger )
The following rates are determined with the Linpack benchmark in the single thread run: ( Toshiba PA3820U-1BRS Battery,Charger ) The IdeaPad A1 finishes the test with 16912 MFLOPs and requires 4.96 seconds. In contrast, the Motorola Xoom clearly has the lead with 28515 MFLOPS and 2.94 seconds. The 10.1 inch Motorola Xoom tablet works with an Nvidia Tegra 2 processor, which is clocked with 1 GHz. The Lenovo IdeaPad A1 scores a total of 1372 points in the Quadrant benchmark (standard edition). ( Toshiba PA3821U-1BRS Battery,Charger ) The stronger Motorola Xoom is again much better and achieves a score of 2107. The smartphone, Google Nexus One, achieves a total score of 1300 points and is almost on a par with our test model. The Google Nexus One is equipped with a Qualcomm QSD8250 chipset and an ARM Cortex A8 1 GHz processor. Alike the test device, the Nexus One has a RAM capacity of 512 MB.
Vellamo ScoreThe IdeaPad A1 reaches a productivity index of 735 and a games index of 1686 in Smartbench 2011. The Motorola Xoom manages a productivity index of 2794 points and a games index of 1576 points. The Samsung Galaxy S2 was also used for comparison. It works with an Exynos 4210 chipset and has a dual core ARM Cortex A9 processor with a clock of 1.2 GHz and a 1024 MB RAM. The Galaxy S2's productivity index is 3862 and the games index is 2244 points. ( Toshiba PA3727U-1BRS Battery,Charger )
Our test device achieves 420 points in our last benchmark, Vellamo Score. For comparison, the Motorola Xoom reaches 785 points and the Samsung Galaxy Tab 10.1 manages 900 points. Both the Galaxy Tab 10.1 and the Xoom tablet are equipped with Nvidia's Tegra 2 chip and have a processor clock of 1 GHz with a 1024 MB memory. ( Toshiba PA3729U-1BAS Battery,Charger )
It has to be considered that the IdeaPad and Google Nexus One have the weakest hardware configuration when looking at the results of all executed tests and the device comparisons. The score difference becomes very evident in Vellamo Score and Smartbench 2011 and shows that the 10 inch tablets and their installed hardware play in a completely different league. ( Toshiba PA3729U-1BRS Battery,Charger )
After installing Flash Player manually from the Android Market, we tested how well Youtube HD videos can be rendered. We used the Android browser that is installed ex-factory for this and played the HD trailer from Transformers III. ( Toshiba PA3730U-1BAS Battery,Charger )
Rendering in 1080p is extremely jerky. It's not possible to watch the trailer. The trailer can be played smoothly for the most part in the quality setting 720p. That is providing an adequate Internet connection is available. ( Toshiba PA3730U-1BRS Battery,Charger )
As mentioned in the section "connectivity", the insufficient graphics performance for HD movies will be one reason why Lenovo hasn't installed a HDMI port. ( Toshiba PA3728U-1BAS Battery,Charger )It's also not possible to play a 720 p HD movie smoothly from an SD card. Movies with a higher resolution (1080p) don't fit on the FAT32 formatted SD card due to their maximum file size. The card reader can also only deal with a FAT32 file system. ( Toshiba PA3728U-1BRS Battery,Charger )
Game: Angry BirdsGames are just as available for the IdeaPad A1 as for other Android tablets, which use the Android Market. For example, we tested "Angry Birds" and didn't notice any problems.Since no mechanically working electronic components have been built into the Lenovo IdeaPad A1, it works noiselessly. ( Toshiba PA3786U-1BRS Battery,Charger )
We notice that the tablet's right lower back area is warmer than other areas after longer use. This lets us assume that the processor is located here. However, the temperature isn't in a critical or disagreeable range. We determined an average temperature of 24.8°C during load and on the device's flip side with our thermometer. ( Toshiba PA3787U-1BRS Battery,Charger )
Generally, many subjective impressions can be made about the sound quality of speakers, and the IdeaPad A1 is no exception. We have to primarily mention that the IdeaPad A1 only has one speaker, so only mono sound is available. The sound is thin and the trebles are overdriven. The result is adequate for the speaker size and price range. However, a headphone should be used for listening to music or watching a movie. ( Toshiba PA3788U-1BRS Battery,Charger )
Toshiba PA3788U-1BRS Battery,Charger