| Global Score | |
| 68.5 | 74.5 |
| Basic Information | |
| Amazon | Samsung |
| Android 4.2.2 | Android 4.4.2 |
| 2013-09-25 | 2014-06-12 |
| 9.09 x 6.22 x 0.31 inches | 8.38 x 4.94 x 0.26 inches |
| 13.55 ounces | 10.51 ounces |
| Black | Black and White |
| -- | Scratch-Resistant Glass |
| -- | $ 166.00 |
| Display / Screen | |
| 8.9 inches | 8.4 inches |
| 2560 x 1600 pixels | 1600 x 2560 pixels |
| LCD | Super AMOLED |
| 339 pixels per inch | 359 pixels per inch |
| 400 cd/m2 brightness | -- |
| Capacitive, Multi-touch | Capacitive, Multi-touch |
| 9 | 8.7 |
| Performance | |
| Qualcomm Snapdragon 800 MSM8074 chipset | Exynos 5 Octa 5420 chipset |
| Krait 400 (Quad-Core 2200 MHz) processor | ARM Cortex-A15 (Quad-Core 1900 MHz + Quad-Core 1300 MHz) processor |
| 2 GB (800 MHz) RAM | 3 GB (933 MHz) RAM |
| Adreno 330 (450 MHz) GPU | ARM Mali-T628 MP6 GPU |
| 9.18 | 8.82 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| No SD card slot | microSD, microSDHC, microSDXC (up to 128 GB) external memory slot |
| 7.7 | 8.12 |
| Camera | |
| 8.00 MP | 8.00 MP + 2.10 MP |
| f/2.20 aperture | -- |
| -- | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 6.82 | 7.48 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA, UMTS, EDGE and GPRS | LTE (4G), HSPA, UMTS, EDGE, GPRS and GSM |
| -- | Micro SIM |
| 6.4 | 6.4 |
| Battery Life | |
| -- | 4900mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | 29 hours talk time |
| 1.36 | 6.72 |
| Other Features | |
| Bluetooth | Bluetooth 4.0 |
| GPS | GPS |
| -- | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Light Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Samsung Galaxy Tab S 8.4 is slightly better than the Amazon Kindle Fire HDX 8.9, getting a 74.5 score against 68.5. The Samsung Galaxy Tab S 8.4 design is extremely lighter and thinner than Amazon Kindle Fire HDX 8.9, even though they were only released 9 months apart. These tablets include Android OS, but the Samsung Galaxy Tab S 8.4 has a newer 4.4.2 version while Amazon Kindle Fire HDX 8.9 has Android 4.2.2.
Amazon Kindle Fire HDX 8.9 features a bit faster processing unit than Samsung Galaxy Tab S 8.4, because although it has 1 GB less RAM memory and lesser cores , it also counts with an extra graphics processing unit. Amazon Kindle Fire HDX 8.9 counts with a slightly better looking screen than Samsung Galaxy Tab S 8.4, because although it has a little bit worse count of pixels per inch of display, and they both have the same exact 1600 x 2560px resolution, the Amazon Kindle Fire HDX 8.9 also counts with a little bit bigger screen.
The Galaxy Tab S 8.4 has a bit bigger memory capacity for games and applications than Amazon Kindle Fire HDX 8.9, because although it has just 32 GB internal memory capacity, it also counts with an external memory slot that allows up to 128 GB. The Samsung Galaxy Tab S 8.4 features a really longer battery performance than Amazon Kindle Fire HDX 8.9.
Galaxy Tab S 8.4 has a slightly better camera than Amazon Kindle Fire HDX 8.9. Both of them have a back camera with an 8 MP resolution.
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