OPPO R7s vs. Samsung Galaxy M31s

Phone Comparison, Reviews and Tests

Side by side comparison and review of OPPO R7s and Samsung Galaxy M31s. 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.

Phone Specifications Comparison

OPPO R7s vs. Samsung Galaxy M31s Comparison Chart
DESIGN AND DIMENSIONS OPPO R7s Samsung Galaxy M31s
Product Type Smartphone Smartphone
Manufacturer Model Number - SM-M317F/DSN
Form Factor Touch Touch
Height 151.8 mm 159.3 mm Samsung Galaxy M31s has greater height than OPPO R7s.
Width 75.4 mm 74.4 mm OPPO R7s has greater width than Samsung Galaxy M31s.
Depth 7 mm 9.3 mm OPPO R7s is narrower than OPPO R7s.
Weight 155 g 203 g OPPO R7s is lighter than OPPO R7s.
Body Colour Rose gold Black
Waterproof (Water-resistant) - -
SAR Value 1.066 W/kg (body), 0.799 W/kg (head) 1.365 W/kg (body), 0.756 W/kg (head)
Connector Type Micro-USB - 5 pin Micro-USB Type B
Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Micro SIM, nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
SIM Card Configuration Details Micro SIM + nano SIM/microSD -
DISPLAY OPPO R7s Samsung Galaxy M31s
Display Type OLED display OLED display
Display Technology AMOLED Super AMOLED
Screen Size (Display Size) 5.5" 6.5" Samsung Galaxy M31s has larger screen size than OPPO R7s.
Screen Resolution (Display Resolution) 1920 x 1080 pixels 2400 x 1080 pixels Samsung Galaxy M31s has better screen resolution than OPPO R7s.
Display Format Full HD Full HD+
Pixel Density 401 ppi -
Colour Depth 16.7 million colours 16.7 million colours Both phones have the same color depth.
Display Features - Night mode, Edge-to-Edge screen, Infinity O display
Display Protection (Screen Protector) Corning Gorilla Glass 3 (scratch resistant glass) -
PROCESSOR OPPO R7s Samsung Galaxy M31s
Processor Type (CPU) Qualcomm Snapdragon 615 -
Clock Speed 1.5 GHz 2.3 GHz Samsung Galaxy M31s has higher clock speed than OPPO R7s.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
Graphics System (GPU) Qualcomm ADRENO 405 -
MEMORY OPPO R7s Samsung Galaxy M31s
RAM 4 GB 6 GB Samsung Galaxy M31s has more RAM than OPPO R7s.
Internal Memory Size (Storage Capacity) 32 GB 128 GB Samsung Galaxy M31s has more internal memory than OPPO R7s.
User Memory - 106.5 GB
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 128 GB microSDHC, microSD, microSDXC - up to 512 GB
CAMERA OPPO R7s Samsung Galaxy M31s
MAIN CAMERA
Number of Main Cameras 1 4
Sensor Resolution 13 Megapixel 64 Megapixel Samsung Galaxy M31s has better camera resolution than OPPO R7s.
Lens Aperture F/2.2 F/1.8 Samsung Galaxy M31s has better lens aperture than OPPO R7s.
Field of View (FoV) - 81 degree(s)
Focus Adjustment Automatic Automatic
Digital Zoom - 10x
HDR Mode Auto HDR mode -
Camera Modes Panorama Slow motion video, Bokeh Mode, Live Focus mode
Face Recognition (Face ID) Face detection - OPPO R7s has face detection.
Light Source LED light LED flash
Video Resolutions 1920 x 1080 (1080p) Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 480 fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF) Background blur
SECOND CAMERA
Sensor Resolution (2nd Camera) - 12 Megapixel
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) - F/2.2
Field of View (2nd Camera) - 123 degree(s)
THIRD CAMERA
Sensor Resolution (3rd Camera) - 5 Megapixel
Lens Aperture (3rd Camera) - F/2.4
Camera Functions (3rd Camera) - Depth camera
FOURTH CAMERA
Sensor Resolution (4th Camera) - 5 Megapixel
Lens Aperture (4th Camera) - F/2.4
Camera Functions (4th Camera) - Macro camera
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 8 Megapixel 32 Megapixel Samsung Galaxy M31s has better front camera resolution than OPPO R7s.
Lens Aperture (Front) F/2.4 F/2.2 Samsung Galaxy M31s has better front lens aperture than OPPO R7s.
Focus Adjustment - Focus free
Camera Features (Front) - Live Focus
BATTERY AND CHARGING OPPO R7s Samsung Galaxy M31s
Battery Capacity (Battery Size) 3070 mAh 6000 mAh Samsung Galaxy M31s has larger battery capacity than OPPO R7s.
Fast Charging Technology - Samsung Super Fast Charging Samsung Galaxy M31s has fast charging technology.
Talk Time - 3060 minutes
Run Time Details - Active online usage (LTE): up to 22 hrs
Active online usage (Wi-Fi): up to 22 hrs
Playback (video): up to 27 hrs
Playback (audio): up to 125 hrs
Talk (4G): up to 3060 min
Battery Technology Lithium polymer -
CELLULAR OPPO R7s Samsung Galaxy M31s
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System ColorOS 2.1 (based on Android 5.1) -
User Interface - One UI
Navigation GPS, A-GPS GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS OPPO R7s Samsung Galaxy M31s
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE FDD-LTE, TDD-LTE
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
3G UMTS Frequency - 2100, 1900, 1700, 850, 900
4G LTE Band Band 1, Band 2, Band 4, Band 7, Band 17 Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 20, Band 26, Band 28, Band 38, Band 40, Band 41, Band 66
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1700 - 2110 AWS, FDD 2600, FDD 700b FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 4.0 Bluetooth 5.0
NFC - Yes Samsung Galaxy M31s has NFC reader for mobile payments.
Messaging Services SMS, MMS -
MEDIA OPPO R7s Samsung Galaxy M31s
Supported Digital Audio Standards WAV, MP3, FLAC, eAAC+ WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID
Supported Digital Video Standards MPEG-4, H.264 MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4
FEATURES OPPO R7s Samsung Galaxy M31s
Phone Functions Speakerphone, call timer, conference call, flight mode, vibrating alert Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, proximity sensor, digital compass Accelerometer, ambient light sensor, proximity sensor, gyro sensor, geomagnetic sensor
Security Devices - Face recognition, fingerprint reader
Additional Phone Features Noise Cancellation Technology Samsung KNOX, Game Booster, Samsung Smart Switch, Virtual Light Sensing
OTHERS OPPO R7s Samsung Galaxy M31s
Included Accessories Power adapter Power adapter
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