Compare phones
| Global Score | |
| 73.9 | 77.7 |
| Basic Information | |
| Vivo | Samsung |
| Android 9.0 Pie | Android 10 |
| 2019-09-16 | 2020-06-19 |
| 6.59 x 3.00 x 0.37 inches | 6.44 x 2.96 x 0.35 inches |
| 7.71 ounces | 6.77 ounces |
| Glowing night | Black, Blue, Red and White |
| Aluminum and Glass | -- |
| Display / Screen | |
| 6.9 inches | 6.5 inches |
| 2256 x 1080 pixels | 1600 x 720 pixels |
| P-OLED | TFT |
| 362 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Samsung Exynos 850 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 640 GPU | Mali-G76 GPU |
| 9.72 | 9.09 |
| Storage | |
| 256 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 9.84 |
| Camera | |
| 64.00 MP + 16.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 12.1 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4500mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
Samsung Galaxy A21s has a general score of 77.7, which is a little bit better than the vivo NEX 3's global score of 73.9. Both devices in this review come with Android OS (Operating System), but the Samsung Galaxy A21s has an older 10 version while vivo NEX 3 has Android 9.0 Pie version. Samsung Galaxy A21s is a newer device, and it's also a little bit thinner and lighter than vivo NEX 3.
Vivo NEX 3 features a sharper screen than Samsung Galaxy A21s, because it has a greater display pixels density, a lot better resolution of 1080 x 2256 and a bit bigger screen. The vivo NEX 3 counts with a bit better performance than Galaxy A21s, and although they both have the same number of cores, the vivo NEX 3 also has more RAM memory.
Vivo NEX 3 takes much better photographs and videos than Samsung Galaxy A21s, because it has a larger aperture to take better photos and video in poorly lited environments, a way better video definition, a larger sensor taking more light and vivid colors and a back-facing camera with a lot higher resolution.
The vivo NEX 3 has a lot bigger memory capacity to install games and applications than Samsung Galaxy A21s, because although it has no slot for an external memory card, it also counts with 256 GB internal memory. Samsung Galaxy A21s counts with a little better battery life than vivo NEX 3, because it has an 11% greater battery size.
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