Compare phones
| Global Score | |
| 82.9 | 76 |
| Basic Information | |
| OnePlus | |
| Android 11, 10 | Android 11 |
| 2020-08-20 | 2021-04-02 |
| 5.67 x 2.73 x 0.32 inches | 6.30 x 2.92 x 0.34 inches |
| 5.04 ounces | 6.77 ounces |
| Just black | Arctic Sky, Astral Black and Winter Mist |
| Plastic and Plastic | Aluminum and Glass (Corning Gorilla Glass) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 349.00 | $ 700.00 |
| Display / Screen | |
| 5.8 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| OLED | AMOLED |
| 444 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.3 | 8.2 |
| Performance | |
| Qualcomm Snapdragon 730G SM7150-AA chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Adreno 618 GPU | Adreno 660 GPU |
| 9.27 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 12.20 MP + 8.00 MP | 48.00 MP + 16.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 27.00mm focal length | 23.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.71 inches (1/1.4") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 9.79 | 12.65 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 3140mAh Li - Polymer Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.12 | 6.32 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
Google Pixel 4a has a general score of 82.9, which is a little bit better than the OnePlus 9's 76 overall score. Google Pixel 4a is a just a little thinner and lighter phone than the OnePlus 9, even when both were released only 8 months apart. These phones have the same Android 11 OS. Google Pixel 4a has a bit more vivid display than OnePlus 9, because although it has a little smaller screen and a bit lower 1080 x 2340 resolution, it also counts with a just a bit greater quantity of pixels per display inch.
The OnePlus 9 has a bit better processing unit than Google Pixel 4a, and although they both have a Octa-Core processing unit, the OnePlus 9 also has more RAM memory. OnePlus 9 counts with a greater camera than Google Pixel 4a, because although it has a tinier aperture, it also counts with a camera in the back with a much higher resolution, a much higher 7680x4320 video quality and a much bigger back camera sensor capturing way higher quality pictures and videos.
The OnePlus 9's memory capacity to install applications and games is very similar to Google Pixel 4a's one, both have the same 128 GB internal memory. The OnePlus 9 features a superior battery performance than Google Pixel 4a, because it has a 43 percent bigger battery size.
Google Pixel 4a not only is the best phones in our comparison, but it's also by far the cheapest one, which makes it a no doubt choice.
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