Side by side comparison and review of OnePlus 7 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 | OnePlus 7 | OPPO A57s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | CPH2385 | |
| Form Factor | Touch | Touch | |
| Height | 157.7 mm | 163.74 mm | OPPO A57s has greater height than OnePlus 7. |
| Width | 74.8 mm | 75.03 mm | OPPO A57s has greater width than OnePlus 7. |
| Depth | 8.2 mm | 7.99 mm | OPPO A57s is narrower than OnePlus 7. |
| Weight | 182 g | 187 g | OnePlus 7 is lighter than OnePlus 7. |
| Body Colour | Mirror grey | Starry black | |
| Body Material | 3D glass | Composite polymer | |
| Waterproof (Water-resistant) | - | - | OPPO A57s is waterproof. |
| IP rating | - | IPX4 | |
| SAR Value | - | 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 USB Type-C - 24 pin USB-C |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | OnePlus 7 | OPPO A57s |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Optic AMOLED | LCD | |
| Screen Size (Display Size) | 6.41" | 6.56" | OPPO A57s has larger screen size than OnePlus 7. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 1612 x 720 pixels | OnePlus 7 has better screen resolution than OPPO A57s. |
| Display Format | - | HD+ | |
| Pixel Density | 402 ppi | 269 ppi | OnePlus 7 has better pixel density than OPPO A57s. |
| Aspect Ratio | 19.5:9 | 20.1:9 | |
| Max Brightness | - | 600 cd/m² | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | - | 1500:1 | |
| Display Refresh Rate | - | 60 Hz | |
| Touch Sampling Rate | - | 60 Hz | |
| Display Features | 2.5D Glass, Reading mode, night mode, DCI-P3 Wide colour gamut, Video Enhancer | Night mode, Eye comfort mode, 96% NTSC | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | Panda Glass MN228 |
| PROCESSOR | OnePlus 7 | OPPO A57s |
|---|
| Processor Type (CPU) | Snapdragon 855 | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | 2.84 GHz | 2.3 GHz | OnePlus 7 has higher clock speed than OPPO A57s. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | OnePlus 7 has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 640 | IMG GE8320 |
| MEMORY | OnePlus 7 | OPPO A57s |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | LPDDR4X SDRAM - 4 GB | OnePlus 7 has more RAM than OPPO A57s. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| Memory Interface | UFS 3.0 | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | OnePlus 7 | OPPO A57s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 2 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 50 Megapixel | OPPO A57s has better camera resolution than OnePlus 7. |
| Sensor Size | - | 1/2.76" | |
| Sensor Name | Sony Exmor RS IMX586 sensor | Samsung S5KJN1 | |
| Lens Aperture | F/1.7 | F/1.8 | OnePlus 7 has better lens aperture than OnePlus 7. |
| Lens Construction | - | 5-element | |
| Field of View (FoV) | - | 77 degree(s) | |
| Pixel Size | 0.8 μm | 0.64 μm | OnePlus 7 has larger camera pixel size than OPPO A57s. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | OnePlus 7 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | - | 27 mm | |
| Digital Zoom | - | 5x | |
| Special Effects | HDR | Stickers | |
| Camera Modes | Panorama, Time-lapse mode, Pro mode, night mode, Portrait | Panorama, Time-lapse mode, Pro mode, Portrait, Night | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1280 x 720 (720p) at 480 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), RAW image capture, AI scene detection, AI studio lighting | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | 2 Megapixel | OnePlus 7 has better second camera resolution than OPPO A57s. |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/5" | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.4 | Both phones have the same second camera lens aperture. |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Field of View (2nd Camera) | - | 89 degree(s) | |
| Pixel Size (2nd Camera) | 1.12 μm | 1.75 μm | OPPO A57s has larger second camera pixel size than OnePlus 7. |
| Minimum Focal Length (2nd Camera) | - | 21 mm | |
| Camera Functions (2nd Camera) | - | Monochrome |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 8 Megapixel | OnePlus 7 has better front camera resolution than OPPO A57s. |
| Sensor Size (Front) | - | 1/1.4" | |
| Sensor Name (Front) | Sony Exmor RX IMX471 sensor | 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) | - | 79 degree(s) | |
| Pixel Size (Front) | 1 μm | 1.12 μm | OPPO A57s has larger front camera pixel size than OnePlus 7. |
| Focus Adjustment | Focus free | Focus free | |
| Min Focal Length (Front) | - | 26 mm | |
| Special Effects (Front) | HDR, face retouch | Stickers | |
| Camera Modes (Front) | Time-lapse mode | Panorama, Time-lapse mode, Portrait | |
| Face Recognition (Face ID) | Face recognition | - | OnePlus 7 has face detection. |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | Electronic Image Stabiliser (EIS) | - |
| BATTERY AND CHARGING | OnePlus 7 | OPPO A57s |
|---|
| Battery Capacity (Battery Size) | 3700 mAh | 5000 mAh | OPPO A57s has larger battery capacity than OnePlus 7. |
|---|---|---|---|
| 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 | OnePlus 7 | OPPO A57s |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | OxygenOS (based on Android Pie) | ColorOS 12.1 (based on Android 12) | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo, SBAS | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | OnePlus 7 | 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 | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8, Band 9, Band 19 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900, 1700, 800 | 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 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 32, Band 34, Band 38, Band 39, 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 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 1500 L, TDD 2000, TDD 2600, TDD 1900, 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 | Bluetooth 5.3 BLE | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | OnePlus 7 | OPPO A57s |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, IMY, EAC3, MID, AMR-WB, AMR-NB | 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, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 | MKV, FLV, AVI, MOV, ASF, 3GP, M4V, TS, M2TS, WebM, MP4 | |
| Sound Enhancements | Dolby Atmos sound technology | Dirac sound technologies |
| FEATURES | OnePlus 7 | OPPO A57s |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | Accelerometer, proximity sensor, magnetometer, gravity sensor, brightness sensor | |
| Security Devices | Fingerprint reader (under display), face recognition | Face recognition, fingerprint reader (side) | |
| Additional Phone Features | Face Unlock, Noise Cancellation Technology, MIMO technology, Fast Charging, AI Engine | 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 | OnePlus 7 | OPPO A57s |
|---|
| Included Accessories | Power adapter, SIM card removal tool, sticker, USB-C cable, screen protector (pre-applied), protective case | SIM card removal tool, USB-C charging cable, protective film, SuperVOOC 33W power adapter | |
|---|---|---|---|
| Compliant Standards | - | IPX4 |
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