OnePlus 8 vs. Samsung Galaxy A31

Phone Comparison, Reviews and Tests

In depth comparison and review of OnePlus 8 and Samsung Galaxy A31. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.

Phone Specifications Comparison

OnePlus 8 vs. Samsung Galaxy A31 Comparison Chart
DESIGN AND DIMENSIONS OnePlus 8 Samsung Galaxy A31
Product Type Smartphone Smartphone
Manufacturer Model Number - SM-A315G/DS
Form Factor Touch Touch
Height 160.2 mm 159.3 mm OnePlus 8 has greater height than Samsung Galaxy A31.
Width 72.9 mm 73.1 mm Samsung Galaxy A31 has greater width than OnePlus 8.
Depth 8 mm 8.6 mm OnePlus 8 is narrower than OnePlus 8.
Weight 180 g 185 g OnePlus 8 is lighter than OnePlus 8.
Body Colour Black | Onyx black | Glacial green Prism crush black
Waterproof (Water-resistant) - -
SAR Value 0.86 W/kg 1.68 W/kg (body), 0.488 W/kg (head)
Connector Type USB Type-C - 24 pin USB-C USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY OnePlus 8 Samsung Galaxy A31
Display Type OLED display OLED display
Display Technology Fluid Amoled Super AMOLED
Screen Size (Display Size) 6.55" 6.4" OnePlus 8 has larger screen size than Samsung Galaxy A31.
Screen Resolution (Display Resolution) 2400 x 1080 pixels 2400 x 1080 pixels Both phones have the same screen resolution.
Display Format QHD+ Full HD+
Pixel Density 402 ppi -
Aspect Ratio 20:9 -
Colour Depth 16.7 million colours 16.7 million colours Both phones have the same color depth.
HDR Yes - OnePlus 8 has HDR.
HDR Technology HDR10+ -
Display Features Reading mode, night mode, Wide colour display (P3), 90 Hz Fluid Display Night mode, Edge-to-Edge screen, Infinity U Display
Display Protection (Screen Protector) Corning Gorilla Glass 3D (scratch resistant glass) -
PROCESSOR OnePlus 8 Samsung Galaxy A31
Processor Type (CPU) Qualcomm Snapdragon 865 -
Clock Speed 2.84 GHz 2 GHz OnePlus 8 has higher clock speed than Samsung Galaxy A31.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
64-bit Architecture Yes - OnePlus 8 has 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 650 -
MEMORY OnePlus 8 Samsung Galaxy A31
RAM LPDDR4X SDRAM - 8 GB 4 GB OnePlus 8 has more RAM than Samsung Galaxy A31.
Internal Memory Size (Storage Capacity) 128 GB 64 GB OnePlus 8 has more internal memory than Samsung Galaxy A31.
User Memory 100 GB 46.2 GB
Memory Interface UFS 3.0 -
Supported Flash Memory Cards (Expandable Memory) - microSDHC, microSDXC - up to 512 GB
CAMERA OnePlus 8 Samsung Galaxy A31
MAIN CAMERA
Number of Main Cameras 3 4
Sensor Resolution 48 Megapixel 48 Megapixel Both phones have the same camera resolution.
Sensor Size 1/1.4" -
Sensor Name Sony Exmor RS IMX586 sensor -
Lens Aperture F/1.75 F/2.0 OnePlus 8 has better lens aperture than OnePlus 8.
Lens Construction 6-element -
Field of View (FoV) - 80 degree(s)
Pixel Size 0.8 μm -
Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) - OnePlus 8 has optical stabilisation.
Focus Adjustment Automatic Automatic
Laser Auto Focus Yes -
Digital Zoom - 8x
Special Effects Portrait, HDR, Studio -
Camera Modes Panorama, Time-lapse mode, Pro mode, night mode, portrait mode, Cine Video Mode, Dog, Cat, Nightscape capture mode, Portrait, Ultra shot Depth bokeh
Face Recognition (Face ID) Face detection - OnePlus 8 has face detection.
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
Camera Features (Functions) Noise reduction, GIF animation function, Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), Continuous Auto Focus (CAF), RAW image capture, AI scene detection, UltraShot engine Live Focus
SECOND CAMERA
Sensor Resolution (2nd Camera) 2 Megapixel 8 Megapixel Samsung Galaxy A31 has better second camera resolution than OnePlus 8.
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) F/2.4 F/2.2 Samsung Galaxy A31 has better second camera lens aperture than OnePlus 8.
Field of View (2nd Camera) - 123 degree(s)
Pixel Size (2nd Camera) 1.75 μm -
Minimum Focal Length (2nd Camera) - 40 mm
Camera Functions (2nd Camera) - Macro camera
THIRD CAMERA
Sensor Resolution (3rd Camera) 16 Megapixel 5 Megapixel OnePlus 8 has higher resolution third camera than Samsung Galaxy A31.
Lens Type (3rd Camera) Ultra wide-angle lens -
Lens Aperture (3rd Camera) F/2.2 F/2.4 OnePlus 8 has better third camera lens aperture than OnePlus 8.
Field of View (3rd Camera) 116 degree(s) -
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) - Depth camera
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 16 Megapixel 20 Megapixel Samsung Galaxy A31 has better front camera resolution than OnePlus 8.
Sensor Name (Front) Sony Exmor RX IMX471 sensor -
Lens Aperture (Front) F/2.45 F/2.2 Samsung Galaxy A31 has better front lens aperture than OnePlus 8.
Pixel Size (Front) 1 μm -
Focus Adjustment Focus free Focus free
Special Effects (Front) HDR, face retouch -
Camera Modes (Front) Time-lapse mode -
Light Source (Front) Display flash -
Video Resolutions (Front) 1920 x 1080 (1080p) at 30 fps -
Camera Features (Front) Electronic Image Stabiliser (EIS) -
BATTERY AND CHARGING OnePlus 8 Samsung Galaxy A31
Battery Capacity (Battery Size) 4300 mAh 5000 mAh Samsung Galaxy A31 has larger battery capacity than OnePlus 8.
Fast Charging Technology Warp Charge 30 technology, Warp Charge 30T technology - OnePlus 8 has fast charging technology.
Talk Time 1740 minutes 1980 minutes Samsung Galaxy A31 has longer battery life when making calls than OnePlus 8.
Run Time Details Talk: up to 1740 min
Standby: up to 391 hrs
Active online usage (LTE): up to 20 hrs
Active online usage (Wi-Fi): up to 20 hrs
Playback (video): up to 22 hrs
Playback (audio): up to 97 hrs
Talk (LTE): up to 1980 min
Battery Technology Lithium Ion -
CELLULAR OnePlus 8 Samsung Galaxy A31
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 5G 4G OnePlus 8 has more advanced generation mobile network.
Operating System OxygenOS (based on Android 10) Android 10
User Interface - One UI
Payment Technology - Samsung Pay
Navigation GPS, A-GPS, GLONASS, BeiDou, Galileo GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS OnePlus 8 Samsung Galaxy A31
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, LTE Advanced, FDD-LTE, TDD-LTE, 5G NR FR1 GPRS, EDGE, HSDPA, HSUPA, HSPA+, 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, Band 9, Band 19 Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 1700, 850, 900, 1700, 800 2100, 1900, 1700, 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 34, Band 38, Band 39, Band 40, Band 41, Band 42, Band 46, Band 66 Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 20, Band 28, Band 38, Band 40, Band 41, Band 66
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 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 5150, FDD 1700 - 2110 AWS-3 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 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3
5G NR Band N1, n3, n7, n28, n78 -
5G NR Frequency FDD 2100, FDD 1800, FDD 2600, FDD 700APT, TDD TD 3500 -
Wireless Interface IEEE 802.11a/b/g/n/ac, IEEE 802.11a/b/g/n/ac/ax IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 5.1 Bluetooth 5.0
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Modem Snapdragon X55 5G -
Messaging Services SMS, MMS SMS, MMS
MEDIA OnePlus 8 Samsung Galaxy A31
Supported Digital Audio Standards WAV, WMA, AAC, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, apt-X, LDAC, IMY, EAC3, MID, AMR-WB, AMR-NB, SBC, apt-X HD, EAC3-JOC, AC-4 WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID
Supported Digital Video Standards MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2
Sound Enhancements Qualcomm aptX audio, Qualcomm aptX HD audio, Dolby Atmos Surround Sound -
FEATURES OnePlus 8 Samsung Galaxy A31
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert 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, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor
Security Devices Fingerprint reader (under display), face recognition Fingerprint reader (under display)
Additional Phone Features Face Unlock, Noise Cancellation Technology, MIMO technology, Alert Slider Samsung KNOX, Game Booster, Samsung Smart Switch, Virtual Proximity Sensing
OTHERS OnePlus 8 Samsung Galaxy A31
Included Accessories SIM card removal tool, sticker, screen protector, USB-C cable, protective case, Warp Charge 30 power adapter Power adapter
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