Side by side comparison and review of ASUS ZenFone 3 (ZE520KL) 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 | ASUS ZenFone 3 (ZE520KL) | OPPO A57s |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZE520KL | CPH2385 | |
| Form Factor | Touch | Touch | |
| Height | 146.87 mm | 163.74 mm | OPPO A57s has greater height than ASUS ZenFone 3 (ZE520KL). |
| Width | 73.98 mm | 75.03 mm | OPPO A57s has greater width than ASUS ZenFone 3 (ZE520KL). |
| Depth | 7.69 mm | 7.99 mm | ASUS ZenFone 3 (ZE520KL) is narrower than ASUS ZenFone 3 (ZE520KL). |
| Weight | 144 g | 187 g | ASUS ZenFone 3 (ZE520KL) is lighter than ASUS ZenFone 3 (ZE520KL). |
| Body Colour | Moon white | Gold shimmer | Black sapphire | Starry black | |
| Body Material | Metal, glass | Composite polymer | |
| Waterproof (Water-resistant) | - | - | OPPO A57s is waterproof. |
| IP rating | - | IPX4 | |
| SAR Value | 0.938 W/kg (body), 0.278 W/kg (head) | 1.015 W/kg (body), 0.957 W/kg (head), 2.399 W/kg (limb) | |
| Integrated Components | FM radio | - | |
| Connector Type | Headset jack - mini-phone 3.5mm 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 (SIM1 and SIM2/MicroSD slots) | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | Nano SIM + nano SIM/microSD |
| DISPLAY | ASUS ZenFone 3 (ZE520KL) | OPPO A57s |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | Super IPS+ | LCD | |
| Screen Size (Display Size) | 5.2" | 6.56" | OPPO A57s has larger screen size than ASUS ZenFone 3 (ZE520KL). |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1612 x 720 pixels | ASUS ZenFone 3 (ZE520KL) has better screen resolution than OPPO A57s. |
| Display Format | Full HD | HD+ | |
| Pixel Density | - | 269 ppi | |
| Aspect Ratio | - | 20.1:9 | |
| Max Brightness | 600 cd/m² | 600 cd/m² | Both phones have the same display brightness |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | - | 1500:1 | |
| Display Enhancement Technology | Bluelight Filter for Eye Care | - | |
| Display Refresh Rate | - | 60 Hz | |
| Touch Sampling Rate | - | 60 Hz | |
| Display Features | ASUS Glove Touch technology, 2.5D curved glass | Night mode, Eye comfort mode, 96% NTSC | |
| Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass (scratch resistant glass) | Panda Glass MN228 |
| PROCESSOR | ASUS ZenFone 3 (ZE520KL) | OPPO A57s |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 625 | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.3 GHz | OPPO A57s has higher clock speed than ASUS ZenFone 3 (ZE520KL). |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | ASUS ZenFone 3 (ZE520KL) has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 506 | IMG GE8320 |
| MEMORY | ASUS ZenFone 3 (ZE520KL) | OPPO A57s |
|---|
| RAM | 3 GB | LPDDR4X SDRAM - 4 GB | OPPO A57s has more RAM than ASUS ZenFone 3 (ZE520KL). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 128 GB | OPPO A57s has more internal memory than ASUS ZenFone 3 (ZE520KL). |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | ASUS ZenFone 3 (ZE520KL) | OPPO A57s |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 50 Megapixel | OPPO A57s has better camera resolution than ASUS ZenFone 3 (ZE520KL). |
| Sensor Size | - | 1/2.76" | |
| Sensor Name | Sony Exmor RS IMX298 sensor | Samsung S5KJN1 | |
| Lens Aperture | F/2.0 | F/1.8 | OPPO A57s has better lens aperture than ASUS ZenFone 3 (ZE520KL). |
| Lens Construction | 6-element | 5-element | |
| Field of View (FoV) | - | 77 degree(s) | |
| Pixel Size | - | 0.64 μm | |
| Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | - | ASUS ZenFone 3 (ZE520KL) has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Minimum Focal Length (Focal Distance) | - | 27 mm | |
| Digital Zoom | - | 5x | |
| Special Effects | Depth of field | Stickers | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, Time-lapse mode, night mode, manual mode, Real time beauty mode, super resolution mode, All Smiles mode, Mini mode | Panorama, Time-lapse mode, Pro mode, Portrait, Night | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 3840 x 2160 (4K) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Sapphire crystal lens cover, GIF animation function, Smart Remove, Electronic Image Stabiliser (EIS), Time Rewind, Largan lens | - |
| 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) | - | 79 degree(s) | |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | - | Focus free | |
| Min Focal Length (Front) | - | 26 mm | |
| Special Effects (Front) | - | Stickers | |
| HDR Mode (Front) | Auto HDR mode | - | |
| Camera Modes (Front) | Selfie panorama | Panorama, Time-lapse mode, Portrait | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | PixelMaster camera | - |
| BATTERY AND CHARGING | ASUS ZenFone 3 (ZE520KL) | OPPO A57s |
|---|
| Battery Capacity (Battery Size) | 2650 mAh | 5000 mAh | OPPO A57s has larger battery capacity than ASUS ZenFone 3 (ZE520KL). |
|---|---|---|---|
| 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 | ASUS ZenFone 3 (ZE520KL) | OPPO A57s |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 6.0 (Marshmallow) | ColorOS 12.1 (based on Android 12) | |
| User Interface | ASUS ZenUI 3.0 | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | ASUS ZenFone 3 (ZE520KL) | OPPO A57s |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, DC-HSPA+ | VoLTE, FDD-LTE, TDD-LTE, VoWiFi | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 20 | 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 850, FDD 2600, FDD 900, FDD 800 DD | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.3 BLE | |
| NFC | - | Yes | OPPO A57s has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | ASUS ZenFone 3 (ZE520KL) | OPPO A57s |
|---|
| Supported Digital Audio Standards | - | 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 | ASUS ZenFone 3 (ZE520KL) | 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, hall sensor, RGB sensor | Accelerometer, proximity sensor, magnetometer, gravity sensor, brightness sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader (side) | |
| Additional Phone Features | Infrared remote control, Dual microphones, Hi-Res Audio, Google Drive Storage (100 GB) (free for 2 years), ASUS SonicMaster 3.0 technology, ASUS NoiseZero Talk technology | 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 | ASUS ZenFone 3 (ZE520KL) | OPPO A57s |
|---|
| Included Accessories | Power adapter | SIM card removal tool, USB-C charging cable, protective film, SuperVOOC 33W power adapter | |
|---|---|---|---|
| Compliant Standards | - | IPX4 |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
