| Global Score | |
| 46.5 | 50.6 |
| Basic Information | |
| Karbonn | Nokia |
| Android 4.4.2 | Android Nokia X 1.0 UI |
| -- | 2014-02-24 |
| 4.89 x 2.53 x 0.40 inches | 4.55 x 2.48 x 0.41 inches |
| 4.59 ounces | 4.54 ounces |
| Black | Black, Blue, Green, Red, White and Yellow |
| -- | Scratch-Resistant Glass |
| $ 249.00 | $ 90.00 |
| Display / Screen | |
| 4 inches | 4 inches |
| 480 x 800 pixels | 480 x 800 pixels |
| IPS LCD | IPS LCD |
| 233 pixels per inch | 233 pixels per inch |
| Capacitive, Multi-touch | Capacitive, Multi-touch |
| 7.6 | 7.6 |
| Performance | |
| -- | Qualcomm Snapdragon S4 MSM8225 chipset |
| Dual-Core 1200 MHz processor | ARM Cortex-A5 (Dual-Core 1000 MHz) processor |
| 512 MB RAM | 512 MB RAM |
| Yes GPU | Adreno 203 (245 MHz) GPU |
| 7.83 | 7.74 |
| Storage | |
| 4 GB internal memory | 4 GB internal memory |
| microSD, microSDHC (up to 32 GB) external memory slot | microSD, microSDHC (up to 32 GB) external memory slot |
| 3.82 | 3.82 |
| Camera | |
| 5.00 MP + 0.30 MP | 3.00 MP |
| -- | f/2.80 aperture |
| -- | 32.40mm focal length |
| -- | 0.2 inches (1/5") sensor |
| 5.83 | 5.72 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| HSPA, EDGE, GPRS and GSM | HSDPA, HSUPA, EDGE, GPRS and GSM |
| SIM, Dual SIM | Micro SIM |
| 4 | 4.1 |
| Battery Life | |
| 1400mAh Li-Ion Battery | 1500mAh Li-Ion Battery |
| Removable Battery | Removable Battery |
| 300 hours standby time | 408 hours standby time 13.3 hours talk time |
| 3.12 | 3.28 |
| Other Features | |
| Bluetooth | Bluetooth 3.0 |
| GPS | GPS |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Nokia X is just a bit better than the Karbonn Smart A12 Star, with a 50.6 score against 46.5. Nokia X has Android Nokia X 1.0 UI OS, and Karbonn Smart A12 Star counts with Android 4.4.2 OS. The Nokia X is a just a little lighter but just a bit thicker cellphone than Karbonn Smart A12 Star. Karbonn Smart A12 Star features a bit better performance than Nokia X, although it has doesn't have an additional graphics co-processor, they both have 512 MB of RAM and the same number of cores.
Nokia X has a display that's very similar to Karbonn Smart A12 Star's display, they have the same screen density, a display of the same size and the same 800 x 480 resolution. The Karbonn Smart A12 Star and the Nokia X feature really similar memory for games and applications, both of them have equal 4 GB internal storage and an external memory card slot that allows up to 32 GB.
The Nokia X counts with a bit superior battery life than Karbonn Smart A12 Star, because it has a 7% bigger battery size. The Karbonn Smart A12 Star captures a little bit better pictures and videos than Nokia X, because it has a camera with a much higher resolution.
Even being the best phone in this comparison, the Nokia X is also a bargain compared to the other ones, which makes this phone a great choice.
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