Oppo A20 VS Vivo T4 5G

The Oppo A20 and Vivo T4 5G both offer water resistance, with the Oppo A20 featuring an IP54 rating and the Vivo T4 5G offering a higher IP65 rating. This suggests that while both devices are resistant to water and dust, the Vivo T4 5G has better protection against water exposure.

In terms of weight, the Vivo T4 5G is slightly heavier at 199 g compared to the Oppo A20’s 186 g. The thickness of the two devices is also similar, with the Oppo A20 being 7.68 mm thick and the Vivo T4 5G at 7.9 mm. The difference is minimal, so users may not notice much of a distinction in terms of how slim the devices feel.

When it comes to size, the Vivo T4 5G is a bit shorter, measuring 163.4 mm in height, while the Oppo A20 stands at 165.77 mm. The width of the two devices is quite similar, with the Oppo A20 at 76.08 mm and the Vivo T4 5G at 76.4 mm. The volume of the Vivo T4 5G is 98.62 cm³, slightly larger than the Oppo A20's 96.86 cm³, which is a result of its marginally larger height and width.

The Oppo A20 features a 6.67″ LCD, IPS display with a resolution of 720 x 1604 px and a pixel density of 264 ppi. It supports a 90Hz refresh rate and HDR10, though it does not have branded damage-resistant glass or an Always-On Display. In contrast, the Vivo T4 5G has a larger 6.77″ OLED/AMOLED screen, with a higher resolution of 1080 x 2392 px and a pixel density of 388 ppi. It supports a 120Hz refresh rate and lacks HDR10 support, but it does include branded damage-resistant glass and an Always-On Display feature.

Both devices support touch input, but the Oppo A20 supports HDR10 while the Vivo T4 5G does not. Additionally, the Vivo T4 5G has a slightly larger display size, a higher pixel density, and a sharper resolution. The Oppo A20, however, offers HDR10 support, a feature that the Vivo T4 5G lacks.

Neither device supports HDR10+, Dolby Vision, or features a secondary screen. Both displays are designed to offer high-quality visuals, but the differences in display technology (LCD vs OLED/AMOLED), screen size, and resolution may appeal to different users depending on their preferences for display clarity and technology.

The Oppo A20 comes with 128GB of internal storage and 4GB of RAM, while the Vivo T4 5G offers more storage at 256GB and a significantly larger RAM capacity of 12GB. The Oppo A20 is powered by the Qualcomm Snapdragon 6 Gen 1 chipset, whereas the Vivo T4 5G is equipped with the more advanced Qualcomm Snapdragon 7s Gen 3. Both devices use the Adreno 710 GPU, but the Vivo T4 5G’s GPU runs at a higher clock speed of 1050 MHz compared to the Oppo A20's 800 MHz.

The CPU configurations also differ between the two devices. The Oppo A20 features a 2.2 GHz quad-core and 1.8 GHz quad-core setup with 8 threads, while the Vivo T4 5G has a higher-performing 2.5 GHz single-core, 2.4 GHz triple-core, and 1.8 GHz quad-core arrangement, also with 8 threads. This allows the Vivo T4 5G to offer better performance in terms of both multi-core and single-core tasks, with Geekbench 6 results showing 3239 in multi-core and 1162 in single-core for the Vivo T4 5G, compared to the Oppo A20’s 2748 and 943, respectively.

In terms of memory performance, the Vivo T4 5G also outshines the Oppo A20 with a faster RAM speed of 3200 MHz versus 2750 MHz in the Oppo A20. The Vivo T4 5G supports up to 16GB of RAM, whereas the Oppo A20 is limited to 12GB. Other shared features include the use of 64-bit architecture, DirectX 12, OpenGL ES 3.2, and integrated LTE. However, the Vivo T4 5G has a slightly higher maximum memory bandwidth of 25.6 GB/s compared to the Oppo A20's 22 GB/s. Both devices have similar thermal design power, with the Oppo A20 at 7W and the Vivo T4 5G at 5W.

The Oppo A20 features a dual-lens main camera with an 8MP primary sensor and a 0.3MP secondary sensor, while the Vivo T4 5G has a more powerful 50MP primary camera paired with a 2MP secondary sensor. Both devices include phase-detection autofocus for photos, optical image stabilization, and support for slow-motion video recording. The Oppo A20 records video at 1080 x 30 fps, while the Vivo T4 5G supports higher 2160 x 30 fps video recording, offering a higher resolution option for video capture.

For the front cameras, the Oppo A20 has a 5MP sensor with a wide aperture of f/2.2, while the Vivo T4 5G features a much higher 32MP front camera with a wider aperture of f/2. The Vivo T4 5G's front camera offers greater detail for selfies compared to the Oppo A20. Neither device features a front-facing LED flash, a dual-lens front camera, or HDR10/Dolby Vision recording support.

Both smartphones support various advanced camera features such as manual exposure, manual ISO, touch autofocus, serial shot mode, and in-camera panorama creation. Neither device supports 3D photo/video recording or a front-facing camera under the display. Additionally, both phones lack a dual-tone LED flash for the main camera, with the Oppo A20 using 4 flash LEDs and the Vivo T4 5G using only 1.

The Oppo A20 runs on Android 14, while the Vivo T4 5G is equipped with the newer Android 15. Both devices offer a range of privacy and security features, including clipboard warnings, location privacy options, camera/microphone privacy options, and the ability to block app tracking. Neither device provides Mail Privacy Protection or blocks cross-site tracking. Both phones have theme customization options, dark mode, customizable notifications, and support widgets.

In terms of extra features, both devices have a media picker, support split screen, offer Live Text, full-page screenshots, and PiP. The Oppo A20 has on-device machine learning, battery health check, an extra dim mode, and tracks the device's current position. The Vivo T4 5G shares most of these features, but it also allows users to offload apps, a feature not available on the Oppo A20.

Both devices lack Quick Start, focus modes, and the ability to be used as a PC. They are also multi-user systems and have offline voice recognition and voice commands. Neither device provides direct OS updates. In summary, while both phones share a similar set of features, the Vivo T4 5G offers the ability to offload apps, and runs a slightly newer Android version (15 vs 14) compared to the Oppo A20.

The Oppo A20 is equipped with a 5100 mAh battery, while the Vivo T4 5G features a larger 7300 mAh battery. Both devices support fast charging, but the Vivo T4 5G offers significantly faster charging speeds at 90W, compared to the Oppo A20's 45W. Neither device supports wireless charging or has a removable battery, but both include a battery level indicator and have rechargeable batteries.

In terms of battery size and charging speed, the Vivo T4 5G has a clear advantage with its larger battery capacity and faster charging capabilities. Both devices, however, provide essential battery features like fast charging support and a battery level indicator.

Overall, while both phones offer similar battery-related features, the Vivo T4 5G's higher battery power and faster charging speed may make it more appealing for users who prioritize quicker charging times and longer battery life.

The Oppo A20 has a 3.5 mm audio jack and stereo speakers, which is a key feature for users who prefer wired audio and enhanced sound quality. It also supports aptX and LDAC for high-quality wireless audio streaming. However, the Oppo A20 does not support aptX HD, aptX Adaptive, or aptX Lossless. On the other hand, the Vivo T4 5G does not have a 3.5 mm audio jack or stereo speakers, and it lacks support for aptX, LDAC, and other high-quality audio codecs such as aptX HD, aptX Adaptive, and aptX Lossless.

Additionally, neither device includes a radio feature. While the Oppo A20 provides a more complete audio experience with a 3.5 mm jack, stereo speakers, and aptX support, the Vivo T4 5G does not offer any of these audio enhancements.

In summary, the Oppo A20 stands out for its audio capabilities, especially for wired headphones and high-quality Bluetooth audio, while the Vivo T4 5G does not provide these features.

The Oppo A20 does not support 5G, while the Vivo T4 5G does. Both phones support Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), and Wi-Fi 6 (802.11ax), and both have Bluetooth 5, though the Vivo T4 5G uses Bluetooth 5.2, a slightly newer version. The Oppo A20 has an external memory slot, which the Vivo T4 5G lacks. Both phones include USB Type-C ports with USB 2.0 version, NFC (only on the Oppo A20), and fingerprint scanners for security.

Both devices offer similar connectivity features, including dual SIM card support, GPS, a compass, accelerometer, gyroscope, and a cellular module. The Oppo A20 has NFC, while the Vivo T4 5G does not, but the Vivo T4 5G offers an infrared sensor, which is absent in the Oppo A20. Neither phone includes a barometer, HDMI output, or a built-in projector.

Neither device supports emergency SOS via satellite, crash detection, DLNA certification, or 3D facial recognition, and neither has a heart rate monitor or motion/optical tracking features. Both phones support Galileo positioning, but the Vivo T4 5G does not have an external memory slot, unlike the Oppo A20.

Both the Oppo A20 and Vivo T4 5G come with a video light, which is a useful feature for enhancing low-light video recordings. Neither device features sapphire glass displays, curved displays, or e-paper displays, meaning both have standard display technologies without these specific premium features.

In summary, the Oppo A20 and Vivo T4 5G are identical in this group, with both offering the same video light feature and lacking sapphire glass, curved displays, and e-paper displays.