| Global Score | |
| 56.9 | 68.5 |
| Basic Information | |
| Lenovo | Amazon |
| Android 4.4, 4.2 | Android 4.2.2 |
| 2014-04-08 | 2013-09-25 |
| 7.80 x 4.77 x 0.39 inches | 9.09 x 6.22 x 0.31 inches |
| 11.29 ounces | 13.55 ounces |
| Blue | Black |
| Scratch-Resistant Glass | -- |
| $ 155.00 | -- |
| Display / Screen | |
| 7 inches | 8.9 inches |
| 800 x 1280 pixels | 2560 x 1600 pixels |
| IPS LCD | LCD |
| 216 pixels per inch | 339 pixels per inch |
| -- | 400 cd/m2 brightness |
| Capacitive, Multi-touch | Capacitive, Multi-touch |
| 7.2 | 9 |
| Performance | |
| MediaTek MT8382 chipset | Qualcomm Snapdragon 800 MSM8074 chipset |
| ARM Cortex-A7 (Quad-Core 1600 MHz) processor | Krait 400 (Quad-Core 2200 MHz) processor |
| 1 GB RAM | 2 GB (800 MHz) RAM |
| ARM Mali-400 MP2 (416 MHz) GPU | Adreno 330 (450 MHz) GPU |
| 8.64 | 9.18 |
| Storage | |
| 16 GB internal memory | 64 GB internal memory |
| microSD, microSDHC (up to 32 GB) external memory slot | No SD card slot |
| 5.72 | 7.7 |
| Camera | |
| 5.00 MP + 2.00 MP | 8.00 MP |
| -- | f/2.20 aperture |
| 6.05 | 6.82 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE (4G), HSPA, UMTS, EDGE and GPRS |
| SIM | -- |
| 4.6 | 6.4 |
| Battery Life | |
| 3450mAh Li-Polymer Battery | -- |
| Non-Removable Battery | Non-Removable Battery |
| 336 hours standby time | -- |
| 5.44 | 1.36 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth |
| GPS | GPS |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Light Sensor |
The Amazon Kindle Fire HDX 8.9 has an overall score of 68.5, which is way better than Lenovo Tab A7-50's 56.9 score. Amazon Kindle Fire HDX 8.9's body is much thinner but somewhat heavier than Lenovo Tab A7-50, and both were released only 7 months apart. Both of these devices use Android operating system, but Amazon Kindle Fire HDX 8.9 has an older 4.2.2 version and Lenovo Tab A7-50 has Android 4.4 version.
The Amazon Kindle Fire HDX 8.9 has a lot better looking display than Lenovo Tab A7-50, because it has a way better pixels number per inch of screen, a bigger screen and a much better resolution of 1600 x 2560 pixels. Amazon Kindle Fire HDX 8.9 counts with a little bit better hardware performance than Lenovo Tab A7-50, and although they both have a Quad-Core processing unit, the Amazon Kindle Fire HDX 8.9 also has a faster 450 megahertz graphics processing unit and 1 GB more RAM.
The Amazon Kindle Fire HDX 8.9 has a lot bigger storage capacity for apps and games than Lenovo Tab A7-50, because although it has no slot for SD memory cards, it also counts with 64 GB internal storage capacity. Amazon Kindle Fire HDX 8.9 takes better videos and photos than Lenovo Tab A7-50, because it has a lot higher resolution back facing camera.
The Lenovo Tab A7-50 features a much better battery life than Amazon Kindle Fire HDX 8.9.
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