| Global Score | |
| 51 | 78.2 |
| Basic Information | |
| Oppo | Samsung |
| Android 4.2.1 | Android 4.4.2, 4.3, 4.2.2 |
| -- | 2013-03-14 |
| 5.37 x 2.68 x 0.29 inches | 5.38 x 2.75 x 0.31 inches |
| 3.88 ounces | 4.62 ounces |
| White | Black, Blue, Red and White |
| -- | Polycarbonate |
| -- | Scratch-Resistant Glass |
| $ 155.00 | $ 155.00 |
| Display / Screen | |
| 4.7 inches | 5 inches |
| 720 x 1280 pixels (HD) | 1080 x 1920 pixels (Full HD) |
| IPS LCD | Super AMOLED |
| 312 pixels per inch | 441 pixels per inch |
| Capacitive, Multi-touch | Capacitive, Multi-touch |
| 8.2 | 9.1 |
| Performance | |
| MediaTek MT6589 chipset | Qualcomm Snapdragon 800 (8974) chipset |
| ARM Cortex-A7 (Quad-Core 1200 MHz) processor | Krait 400 (Quad-Core 2300 MHz) processor |
| 1 GB RAM | 2 GB (800 MHz) RAM |
| PowerVR SGX544 (384 MHz) GPU | Adreno 330 (450 MHz) GPU |
| 8.28 | 9.27 |
| Storage | |
| 16 GB internal memory | 32 GB internal memory |
| No SD card slot | microSD, microSDHC, microSDXC (up to 64 GB) external memory slot |
| 4.4 | 7.56 |
| Camera | |
| 8.00 MP + 2.00 MP | 13.00 MP + 2.00 MP |
| -- | f/2.20 aperture |
| -- | 31.00mm focal length |
| -- | 0.33 inches (1/3.06") sensor |
| -- | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 6.38 | 9.02 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | Mobile Hotspot |
| HSPA, EDGE, GPRS and GSM | LTE (4G), HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM |
| SIM, Dual SIM | Micro SIM |
| 3.4 | 7 |
| Battery Life | |
| 2000mAh Battery | 2600mAh Li-Ion Battery |
| Removable Battery | Removable Battery |
| -- | Wireless Charging |
| -- | 17 hours talk time |
| 3.92 | 4.56 |
| Other Features | |
| Bluetooth 3.0 | Bluetooth 4.0 |
| GPS | GPS |
| -- | NFC |
| -- | Infra-red port |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Galaxy S4 is way better than the OPPO R819, getting a 78.2 score against 51. Both of these devices have Android OS (Operating System), but the Galaxy S4 has 4.4.2 version and OPPO R819 has Android 4.2.1. Despite being the best in our current comparison, the Galaxy S4 is a just a little bit thicker and somewhat heavier phone than OPPO R819.
Samsung Galaxy S4 has a much better screen than OPPO R819, because it has a little bit bigger display, a higher screen density and a way higher resolution of 1920 x 1080. Samsung Galaxy S4 counts with a quite superior hardware performance than OPPO R819, and although they both have a Quad-Core processor, the Samsung Galaxy S4 also has a faster 450 MHz graphics co-processor and a larger amount of RAM memory.
The Galaxy S4 has a way bigger storage to install applications and games or saving photos and videos than OPPO R819, because it has 16 GB more internal memory and an external memory card slot that supports up to 64 GB. The Samsung Galaxy S4 captures greater photographs and videos than OPPO R819, because it has a back facing camera with lot more MP.
Galaxy S4 features improved battery life than OPPO R819, because it has 2600mAh of battery capacity.
Galaxy S4 costs the same than OPPO R819, making it easy to pick between these devices.
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