| Global Score | |
| 68.5 | 65.6 |
| Basic Information | |
| Amazon | Samsung |
| Android 4.2.2 | Android 4.4.2 |
| 2013-09-25 | 2014-04-01 |
| 9.09 x 6.22 x 0.31 inches | 7.36 x 4.25 x 0.35 inches |
| 13.55 ounces | 9.74 ounces |
| Black | Black and White |
| -- | $ 169.00 |
| Display / Screen | |
| 8.9 inches | 7 inches |
| 2560 x 1600 pixels | 800 x 1280 pixels |
| LCD | LCD |
| 339 pixels per inch | 216 pixels per inch |
| 400 cd/m2 brightness | -- |
| Capacitive, Multi-touch | Capacitive, Multi-touch |
| 9 | 7.6 |
| Performance | |
| Qualcomm Snapdragon 800 MSM8074 chipset | Marvell PXA1088 chipset |
| Krait 400 (Quad-Core 2200 MHz) processor | ARM Cortex-A7 (Quad-Core 1200 MHz) processor |
| 2 GB (800 MHz) RAM | 1,5 GB RAM |
| Adreno 330 (450 MHz) GPU | Vivante GPU |
| 9.18 | 8.1 |
| Storage | |
| 64 GB internal memory | 8 GB internal memory |
| No SD card slot | microSD, microSDHC, microSDXC (up to 64 GB) external memory slot |
| 7.7 | 5.06 |
| Camera | |
| 8.00 MP | 3.00 MP + 1.30 MP |
| f/2.20 aperture | f/2.60 aperture |
| -- | 1280 x 720 (30 fps) (HD) video resolution |
| 6.82 | 7.15 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA, UMTS, EDGE and GPRS | LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS, GSM and CDMA |
| -- | SIM |
| 6.4 | 7.1 |
| Battery Life | |
| -- | 4000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 1.36 | 5.92 |
| Other Features | |
| Bluetooth | Bluetooth 4.0 |
| GPS | GPS |
| Accelerometer, Gyroscope and Light Sensor | Accelerometer |
Amazon Kindle Fire HDX 8.9 has a general score of 68.5, which is a little bit better than the Samsung Galaxy Tab 4 7.0's score of 65.6. Amazon Kindle Fire HDX 8.9's design is somewhat thinner but notably heavier than the Samsung Galaxy Tab 4 7.0, and they were released only 6 months apart. Both of these devices have Android OS (operating system), but Amazon Kindle Fire HDX 8.9 has 4.2.2 version and Samsung Galaxy Tab 4 7.0 has Android 4.4.2.
Amazon Kindle Fire HDX 8.9 features a quite better hardware performance than Galaxy Tab 4 7.0, and although they both have 4 cores, the Amazon Kindle Fire HDX 8.9 also has a greater amount of RAM and an additional graphics co-processor. The Amazon Kindle Fire HDX 8.9 features a sharper screen than Galaxy Tab 4 7.0, because it has a way better resolution of 1600 x 2560 pixels, a larger screen and a lot better number of pixels per inch in the display.
Galaxy Tab 4 7.0 captures just a bit better photos and videos than Amazon Kindle Fire HDX 8.9, although it has a tinier diafragm aperture and a back-facing camera with a much lower 3 MP resolution. The Amazon Kindle Fire HDX 8.9 counts with a much greater storage to install applications and games or saving photos and videos than Samsung Galaxy Tab 4 7.0, because although it has no slot for an external memory card, it also counts with 64 GB internal memory.
Samsung Galaxy Tab 4 7.0 has a way better battery lifetime than Amazon Kindle Fire HDX 8.9.
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