Side by side comparison and review of Samsung Galaxy Note8 DUOS 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 | Samsung Galaxy Note8 DUOS | OPPO A57s |
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Product Type | Smartphone | Smartphone | |
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Manufacturer Model Number | SM-N950F/DS | CPH2385 | |
Form Factor | Touch | Touch | |
Height | 162.5 mm | 163.74 mm | OPPO A57s has greater height than Samsung Galaxy Note8 DUOS. |
Width | 74.8 mm | 75.03 mm | OPPO A57s has greater width than Samsung Galaxy Note8 DUOS. |
Depth | 8.6 mm | 7.99 mm | OPPO A57s is narrower than Samsung Galaxy Note8 DUOS. |
Weight | 195 g | 187 g | OPPO A57s is lighter than Samsung Galaxy Note8 DUOS. |
Body Colour | Midnight black | Starry black | |
Body Material | - | Composite polymer | |
Protection | Dustproof, splashproof, waterproof | - | |
Waterproof (Water-resistant) | Yes | - | Samsung Galaxy Note8 DUOS is waterproof. |
IP rating | IP68 | IPX4 | |
SAR Value | 1.29 W/kg (body), 0.173 W/kg (head) | 1.015 W/kg (body), 0.957 W/kg (head), 2.399 W/kg (limb) | |
Integrated Components | Heart rate sensor | - | |
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 |
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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 | Samsung Galaxy Note8 DUOS | OPPO A57s |
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Display Type | OLED display | LCD display | |
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Display Technology | Quad HD+ Super AMOLED | LCD | |
Screen Size (Display Size) | 6.3" | 6.56" | OPPO A57s has larger screen size than Samsung Galaxy Note8 DUOS. |
Screen Resolution (Display Resolution) | 2960 x 1440 pixels | 1612 x 720 pixels | Samsung Galaxy Note8 DUOS has better screen resolution than OPPO A57s. |
Display Format | - | HD+ | |
Pixel Density | 521 ppi | 269 ppi | Samsung Galaxy Note8 DUOS has better pixel density than OPPO A57s. |
Aspect Ratio | - | 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 | - | 1500:1 | |
Display Refresh Rate | - | 60 Hz | |
Touch Sampling Rate | - | 60 Hz | |
Display Features | Always-on display | Night mode, Eye comfort mode, 96% NTSC | |
Display Protection (Screen Protector) | - | Panda Glass MN228 |
PROCESSOR | Samsung Galaxy Note8 DUOS | OPPO A57s |
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Processor Type (CPU) | Samsung Exynos | MediaTek Helio G35 | |
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Processor Number | 8895 | - | |
Clock Speed | 2.3 GHz | 2.3 GHz | Both phones have the same clock speed. |
Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
64-bit Architecture | Yes | - | Samsung Galaxy Note8 DUOS has 64-bit architecture. |
Graphics System (GPU) | Mali-G71 MP20 | IMG GE8320 |
MEMORY | Samsung Galaxy Note8 DUOS | OPPO A57s |
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RAM | LPDDR4 SDRAM - 6 GB | LPDDR4X SDRAM - 4 GB | Samsung Galaxy Note8 DUOS has more RAM than OPPO A57s. |
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Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | OPPO A57s has more internal memory than Samsung Galaxy Note8 DUOS. |
User Memory | 51.2 GB | - | |
Memory Interface | - | eMMC 5.1 | |
Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSD, microSDXC - up to 1 TB |
CAMERA | Samsung Galaxy Note8 DUOS | OPPO A57s |
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MAIN CAMERA |
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Number of Main Cameras | 2 | 2 | |
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Sensor Resolution | 12 Megapixel | 50 Megapixel | OPPO A57s has better camera resolution than Samsung Galaxy Note8 DUOS. |
Sensor Size | 1/2.55" | 1/2.76" | OPPO A57s has better camera sensor size than Samsung Galaxy Note8 DUOS. |
Sensor Name | - | Samsung S5KJN1 | |
Lens Type | Wide-angle lens | - | |
Lens Aperture | F/1.7 | F/1.8 | Samsung Galaxy Note8 DUOS has better lens aperture than Samsung Galaxy Note8 DUOS. |
Lens Construction | 6-element | 5-element | |
Field of View (FoV) | - | 77 degree(s) | |
Pixel Size | - | 0.64 μm | |
Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Samsung Galaxy Note8 DUOS has optical stabilisation. |
Focus Adjustment | Automatic, manual | Automatic | |
Minimum Focal Length (Focal Distance) | - | 27 mm | |
Optical Zoom | 2x | - | |
Digital Zoom | 10x | 5x | Samsung Galaxy Note8 DUOS has better digital zoom than OPPO A57s. |
Self-Timer Delay | Yes | - | |
Special Effects | Motion effect, HDR, Stamp, Bokeh effect, Grid Line, Stickers | Stickers | |
Camera Modes | Panorama, Slow motion mode, Pro mode, Timer mode, Virtual Shot, HYPERLAPSE, Food mode | Panorama, Time-lapse mode, Pro mode, Portrait, Night | |
Face Recognition (Face ID) | Face detection | - | Samsung Galaxy Note8 DUOS has face detection. |
White Balance | Custom, automatic | - | |
Light Source | LED light | 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, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
Camera Features (Functions) | Selective Focus, Quick Launch, Playback zoom, Tracking Focus, Dual Pixel technology, Motion photo, Exposure, Shutter speed, geotagging, RAW image capture, VDIS (Video Digital Image Stabilisation) | - |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | 12 Megapixel | 2 Megapixel | Samsung Galaxy Note8 DUOS has better second camera resolution than OPPO A57s. |
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Sensor Size (2nd Camera) | - | 1/5" | |
Lens Type (2nd Camera) | Telephoto lens | - | |
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) | - | 1.75 μm | |
Minimum Focal Length (2nd Camera) | - | 21 mm | |
Camera Functions (2nd Camera) | - | Monochrome |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 8 Megapixel | 8 Megapixel | Both phones have the same front camera resolution. |
Sensor Size (Front) | 1/3.6" | 1/1.4" | Samsung Galaxy Note8 DUOS has better front camera sensor size than OPPO A57s. |
Sensor Type (Front) | CMOS | - | |
Sensor Name (Front) | - | Omnivision OV08D10 sensor | |
Lens Type (Front) | Wide-angle lens | - | |
Lens Aperture (Front) | F/1.7 | F/2.0 | Samsung Galaxy Note8 DUOS has better front lens aperture than Samsung Galaxy Note8 DUOS. |
Lens Element Qty (Front) | - | 5-element | |
Field of View (Front) | - | 79 degree(s) | |
Pixel Size (Front) | - | 1.12 μm | |
Focus Adjustment | Automatic | Focus free | |
Min Focal Length (Front) | - | 26 mm | |
Special Effects (Front) | - | Stickers | |
Camera Modes (Front) | Wide selfie mode | 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) | Optical Image Stabilisation (OIS) | - |
BATTERY AND CHARGING | Samsung Galaxy Note8 DUOS | OPPO A57s |
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Battery Capacity (Battery Size) | 3300 mAh | 5000 mAh | OPPO A57s has larger battery capacity than Samsung Galaxy Note8 DUOS. |
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Fast Charging Technology | - | SuperVOOC Flash Charge technology | OPPO A57s has fast charging technology. |
Wireless Charging | Yes | - | Samsung Galaxy Note8 DUOS can be charged wirelessly. |
Wireless Charging Standards | WPC, PMA | - | |
Standby Time | - | 304 hours | |
Talk Time | 1320 minutes | 1800 minutes | OPPO A57s has longer battery life when making calls than Samsung Galaxy Note8 DUOS. |
Run Time Details | Talk (3G): up to 1320 min Active online usage (3G): up to 12 hrs Active online usage (4G): up to 13 hrs Active online usage (Wi-Fi): up to 14 hrs Playback (audio (Always On Display On)): up to 47 hrs Playback (audio (Always On Display Off)): up to 74 hrs Playback (video): up to 16 hrs |
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 | Samsung Galaxy Note8 DUOS | OPPO A57s |
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Technology | TD-SCDMA / WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | Android 7.1.1 Nougat | ColorOS 12.1 (based on Android 12) | |
Intelligent Assistant | Bixby | - | |
Payment Technology | Samsung Pay | - | |
Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
COMMUNICATIONS | Samsung Galaxy Note8 DUOS | OPPO A57s |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | VoLTE, FDD-LTE, TDD-LTE, VoWiFi | |
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2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 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 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, 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 1500 L, 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, ANT+/ANT | 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 | Samsung Galaxy Note8 DUOS | OPPO A57s |
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Supported Digital Audio Standards | WAV, WMA, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, apt-X, DSF, DSD, MXMF, IMY, RTTTL, RTX, OTA, DFF, MID | WAV, WMA, AAC, AMR, MP3, FLAC, AC-3, OGG, MIDI, APE (Monkey's Audio), LDAC, OPUS, MID, SBC, apt-X HD | |
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Supported Digital Video Standards | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | MKV, FLV, AVI, MOV, ASF, 3GP, M4V, TS, M2TS, WebM, MP4 | |
Sound Enhancements | Acoustic Overload Point | Dirac sound technologies |
FEATURES | Samsung Galaxy Note8 DUOS | OPPO A57s |
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Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
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Sensors | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, heart rate, pressure sensor, geomagnetic sensor | Accelerometer, proximity sensor, magnetometer, gravity sensor, brightness sensor | |
Security Devices | Fingerprint reader, eye scan | Face recognition, fingerprint reader (side) | |
Additional Phone Features | Face Unlock, Wi-Fi Miracast, MU-MIMO technology, Fast Charging, Samsung KNOX | 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 | Samsung Galaxy Note8 DUOS | OPPO A57s |
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Included Accessories | Power adapter, tweezer, SIM card removal tool, USB Connector (USB-C), micro-USB connector, AKG headphones, USB-C cable, S Pen, Pen nibs | SIM card removal tool, USB-C charging cable, protective film, SuperVOOC 33W power adapter | |
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Compliant Standards | IP68, HAC (Hearing Aid Compatible) | IPX4 |