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| Global Score | |
| 67.9 | 59.3 |
| Basic Information | |
| Amazon | Acer |
| Android 4.4 | Windows 8.1 |
| 2014-10-21 | 0000-00-00 |
| 9.10 x 6.20 x 0.30 inches | 8.58 x 5.31 x 0.39 inches |
| 13.23 ounces | 15.17 ounces |
| -- | Gray |
| $ 479.00 | $ 385.00 |
| Display / Screen | |
| 8.9 inches | 8 inches |
| 2560 x 1600 pixels | 1280 x 800 pixels |
| LCD | IPS LCD |
| 339 pixels per inch | 189 pixels per inch |
| Capacitive, Multi-touch | Capacitive, Multi-touch |
| 8.7 | 7.4 |
| Performance | |
| Qualcomm Snapdragon 805 APQ8084 chipset | Intel Atom Bay Trail chipset |
| Krait 450 (Quad-Core 2500 MHz) processor | Intel Atom Z3740 (Quad-Core 1333 MHz) processor |
| 2 GB (800 MHz) RAM | 2 GB RAM |
| Adreno 420 Blaze GPU | Intel Graphics Media Accelerator HD GPU |
| 9.09 | 8.28 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| No SD card slot | microSD, microSDHC, microSDXC external memory slot |
| 7.7 | 7.7 |
| Camera | |
| 8.00 MP | 5.00 MP + 2.00 MP |
| f/2.20 aperture | -- |
| 1920 x 1080 (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 6.82 | 7.04 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | -- |
| LTE (4G), HSPA, EDGE and GPRS | -- |
| 6.3 | 2.4 |
| Battery Life | |
| -- | 4960mAh Li-Polymer Battery |
| Removable Battery | Removable Battery |
| 1.36 | 6.72 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 4.0 |
| GPS | GPS |
| Accelerometer, Gyroscope and Light Sensor | Accelerometer |
Amazon Fire HDX 8.9 is better than the Acer Iconia W4, with a overall score of 67.9 against 59.3. Amazon Fire HDX 8.9's design is incredibly thinner and somewhat lighter than Acer Iconia W4. Amazon Fire HDX 8.9 comes with Android 4.4 OS, and Acer Iconia W4 counts with Windows 8.1 OS. The Amazon Fire HDX 8.9 features a brighter display than Acer Iconia W4, because it has a way greater pixel number per inch of screen, a little bigger display and a much better resolution of 1600 x 2560.
Amazon Fire HDX 8.9 features a bit better hardware performance than Acer Iconia W4. Both of them have the same number of cores and 2 GB of RAM. Acer Iconia W4 features a little bit better camera than Amazon Fire HDX 8.9, although it has a lower 1920x1080 video quality and a much less megapixels back-facing camera.
Acer Iconia W4's memory capacity to store more apps and games is just as good as Amazon Fire HDX 8.9's one, they have exactly the same internal memory. The Acer Iconia W4 features a much better battery lifetime than Amazon Fire HDX 8.9.
Amazon Fire HDX 8.9 costs more than Acer Iconia W4, but you can get a better tablet for that few more dollars.
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