Side by side comparison and review of Google Pixel 3a and OPPO A57s. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Google Pixel 3a | OPPO A57s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | G020F | CPH2385 | |
| Form Factor | Touch | Touch | |
| Height | 151.3 mm | 163.74 mm | OPPO A57s has greater height than Google Pixel 3a. |
| Width | 70.1 mm | 75.03 mm | OPPO A57s has greater width than Google Pixel 3a. |
| Depth | 8.2 mm | 7.99 mm | OPPO A57s is narrower than Google Pixel 3a. |
| Weight | 147 g | 187 g | Google Pixel 3a is lighter than Google Pixel 3a. |
| Body Colour | Clearly white | Purple-ish | Just black | Starry black | |
| Body Material | Polycarbonate | Composite polymer | |
| Waterproof (Water-resistant) | - | - | OPPO A57s is waterproof. |
| IP rating | - | IPX4 | |
| SAR Value | 1.55 W/kg (body), 1.38 W/kg (head) | 1.015 W/kg (body), 0.957 W/kg (head), 2.399 W/kg (limb) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
|
| SIM Card Type (Size) | Nano SIM, Electronic SIM card (e-SIM) | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Google Pixel 3a | OPPO A57s |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | OLED | LCD | |
| Screen Size (Display Size) | 5.6" | 6.56" | OPPO A57s has larger screen size than Google Pixel 3a. |
| Screen Resolution (Display Resolution) | 2220 x 1080 pixels | 1612 x 720 pixels | Google Pixel 3a has better screen resolution than OPPO A57s. |
| Display Format | Full HD+ | HD+ | |
| Pixel Density | 441 ppi | 269 ppi | Google Pixel 3a has better pixel density than OPPO A57s. |
| Aspect Ratio | 18:9 | 20.1:9 | |
| Max Brightness | - | 600 cd/m² | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Contrast Ratio | 100000:1 | 1500:1 | Google Pixel 3a has better display contrast ratio than OPPO A57s. |
| Display Refresh Rate | - | 60 Hz | |
| Touch Sampling Rate | - | 60 Hz | |
| Display Features | Always-on display, Now Playing | Night mode, Eye comfort mode, 96% NTSC | |
| Display Protection (Screen Protector) | - | Panda Glass MN228 |
| PROCESSOR | Google Pixel 3a | OPPO A57s |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 670 | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.3 GHz | OPPO A57s has higher clock speed than Google Pixel 3a. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Google Pixel 3a has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 615 | IMG GE8320 |
| MEMORY | Google Pixel 3a | OPPO A57s |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR4X SDRAM - 4 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | OPPO A57s has more internal memory than Google Pixel 3a. |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Google Pixel 3a | OPPO A57s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 12.2 Megapixel | 50 Megapixel | OPPO A57s has better camera resolution than Google Pixel 3a. |
| Sensor Size | - | 1/2.76" | |
| Sensor Name | - | Samsung S5KJN1 | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Lens Construction | - | 5-element | |
| Field of View (FoV) | 76 degree(s) | 77 degree(s) | OPPO A57s has larger lens field of view than Google Pixel 3a. |
| Pixel Size | 1.4 μm | 0.64 μm | Google Pixel 3a has larger camera pixel size than OPPO A57s. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Google Pixel 3a has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | - | 27 mm | |
| Digital Zoom | - | 5x | |
| Special Effects | - | Stickers | |
| Camera Modes | Portrait mode | Panorama, Time-lapse mode, Pro mode, Portrait, Night | |
| Light Source | - | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 1280 x 720 (720p) at 60 fps, 1920 x 1080 (1080p) at 120 fps, 1280 x 720 (720p) at 240 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Electronic Image Stabiliser (EIS), dual pixel phase detection, Motion Auto Focus | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/5" | |
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Field of View (2nd Camera) | - | 89 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.75 μm | |
| Minimum Focal Length (2nd Camera) | - | 21 mm | |
| Camera Functions (2nd Camera) | - | Monochrome |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 8 Megapixel | Both phones have the same front camera resolution. |
| Sensor Size (Front) | - | 1/1.4" | |
| Sensor Name (Front) | - | Omnivision OV08D10 sensor | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Lens Element Qty (Front) | - | 5-element | |
| Field of View (Front) | 84 degree(s) | 79 degree(s) | Google Pixel 3a has larger front lens field of view than OPPO A57s. |
| Pixel Size (Front) | 1.12 μm | 1.12 μm | Both phones have the same front camera pixel size. |
| Focus Adjustment | Focus free | Focus free | |
| Min Focal Length (Front) | - | 26 mm | |
| Special Effects (Front) | - | Stickers | |
| Camera Modes (Front) | - | Panorama, Time-lapse mode, Portrait | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 640 x 480 (VGA) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Google Pixel 3a | OPPO A57s |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5000 mAh | OPPO A57s has larger battery capacity than Google Pixel 3a. |
|---|---|---|---|
| Fast Charging Technology | - | SuperVOOC Flash Charge technology | OPPO A57s has fast charging technology. |
| Standby Time | - | 304 hours | |
| Talk Time | - | 1800 minutes | |
| Run Time Details | - | Talk: up to 1800 min Standby (4G): up to 304 hrs Playback (video): up to 13.4 hrs Playback (audio (via speakers, 50% volume)): up to 40 hrs |
| CELLULAR | Google Pixel 3a | OPPO A57s |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 9.0 Pie | ColorOS 12.1 (based on Android 12) | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS, GLONASS, Galileo, QZSS | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Google Pixel 3a | OPPO A57s |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | VoLTE, FDD-LTE, TDD-LTE, VoWiFi | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 40, Band 41, Band 66 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.3 BLE | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Google Pixel 3a | OPPO A57s |
|---|
| Supported Digital Audio Standards | Apt-X, LDAC, apt-X HD | WAV, WMA, AAC, AMR, MP3, FLAC, AC-3, OGG, MIDI, APE (Monkey's Audio), LDAC, OPUS, MID, SBC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, FLV, AVI, MOV, ASF, 3GP, M4V, TS, M2TS, WebM, MP4 | |
| Sound Enhancements | - | Dirac sound technologies |
| FEATURES | Google Pixel 3a | OPPO A57s |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, barometer, magnetometer, gyro sensor, haptics sensor, Active Edge | Accelerometer, proximity sensor, magnetometer, gravity sensor, brightness sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader (side) | |
| Additional Phone Features | Dual microphones, MIMO technology, Android Sensor Hub, Noise suppression, Night Shift, ARCore, Google Lens, Titan M Security Module, Pixel Imprint sensor | Noise reduction microphone, Fast Charging, 3 years of Security Updates, 2 years of OS upgrades, Cooling Graphite Thermal Pad, Reverse charging, super-linear dual speakers |
| OTHERS | Google Pixel 3a | OPPO A57s |
|---|
| Included Accessories | SIM card removal tool, Quick switch adapter, 18W USB-C power adapter, USB-C to USB-C cable (1 m) | SIM card removal tool, USB-C charging cable, protective film, SuperVOOC 33W power adapter | |
|---|---|---|---|
| Compliant Standards | - | IPX4 |
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