OPPO Reno2 Z vs. Samsung Galaxy A31

Phone Comparison, Reviews and Tests

Detailed comparison and review of OPPO Reno2 Z and Samsung Galaxy A31. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.

Phone Specifications Comparison

OPPO Reno2 Z vs. Samsung Galaxy A31 Comparison Chart
DESIGN AND DIMENSIONS OPPO Reno2 Z Samsung Galaxy A31
Product Type Smartphone Smartphone
Manufacturer Model Number - SM-A315G/DS
Form Factor Touch Touch
Height 161.8 mm 159.3 mm OPPO Reno2 Z has greater height than Samsung Galaxy A31.
Width 75.8 mm 73.1 mm OPPO Reno2 Z has greater width than Samsung Galaxy A31.
Depth 8.7 mm 8.6 mm Samsung Galaxy A31 is narrower than OPPO Reno2 Z.
Weight 195 g 185 g Samsung Galaxy A31 is lighter than OPPO Reno2 Z.
Body Colour Luminous black | Sky white Prism crush black
Body Material Corning Gorilla Glass 5 -
Waterproof (Water-resistant) - -
SAR Value 0.872 W/kg (head), 3.99 W/kg (limb), 1.282 W/kg (body) 1.68 W/kg (body), 0.488 W/kg (head)
Connector Type USB Type-C - 24 pin USB-C
Handset jack - mini-phone 3.5mm
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 OPPO Reno2 Z Samsung Galaxy A31
Display Type OLED display OLED display
Display Technology AMOLED Super AMOLED
Screen Size (Display Size) 6.5" 6.4" OPPO Reno2 Z has larger screen size than Samsung Galaxy A31.
Screen Resolution (Display Resolution) 2340 x 1080 pixels 2400 x 1080 pixels Samsung Galaxy A31 has better screen resolution than OPPO Reno2 Z.
Display Format - Full HD+
Pixel Density 394 ppi -
Max Brightness 430 cd/m² -
Colour Depth 16.7 million colours 16.7 million colours Both phones have the same color depth.
Contrast Ratio 60000:1 -
Display Enhancement Technology OnCell technology -
Display Features - Night mode, Edge-to-Edge screen, Infinity U Display
Display Protection (Screen Protector) Corning Gorilla Glass 5 (scratch resistant glass) -
PROCESSOR OPPO Reno2 Z Samsung Galaxy A31
Processor Type (CPU) MediaTek Helio P90 -
Clock Speed - 2 GHz
Processor Core Qty - 8-core
Graphics System (GPU) IMG 9XM-HP8 -
MEMORY OPPO Reno2 Z Samsung Galaxy A31
RAM 8 GB 4 GB OPPO Reno2 Z has more RAM than Samsung Galaxy A31.
Internal Memory Size (Storage Capacity) 128 GB 64 GB OPPO Reno2 Z has more internal memory than Samsung Galaxy A31.
User Memory - 46.2 GB
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 256 GB microSDHC, microSDXC - up to 512 GB
CAMERA OPPO Reno2 Z Samsung Galaxy A31
MAIN CAMERA
Number of Main Cameras 4 4
Sensor Resolution 48 Megapixel 48 Megapixel Both phones have the same camera resolution.
Sensor Size 1/2" -
Sensor Name Sony Exmor RS IMX586 sensor -
Lens Aperture F/1.7 F/2.0 OPPO Reno2 Z has better lens aperture than OPPO Reno2 Z.
Lens Construction 6-element -
Field of View (FoV) - 80 degree(s)
Pixel Size 0.8 μm -
Focus Adjustment Automatic Automatic
Digital Zoom 10x 8x OPPO Reno2 Z has better digital zoom than Samsung Galaxy A31.
Special Effects HDR -
Camera Modes Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Professional mode, Night scene mode, Portrait Mode 2.0, Portrait bokeh mode Depth bokeh
Light Source Dual LED flash LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps 1920 x 1080 (1080p) at 30 fps
Camera Features (Functions) Electronic Image Stabiliser (EIS), NPU Acceleration Live Focus
SECOND CAMERA
Sensor Resolution (2nd Camera) 8 Megapixel 8 Megapixel Both phones have the same second camera resolution.
Sensor Size (2nd Camera) 1/4.0" -
Lens Type (2nd Camera) Wide-angle lens Ultra wide-angle lens
Lens Aperture (2nd Camera) F/2.2 F/2.2 Both phones have the same second camera lens aperture.
Field of View (2nd Camera) 119 degree(s) 123 degree(s) Samsung Galaxy A31 has larger second camera lens field of view than OPPO Reno2 Z.
Pixel Size (2nd Camera) 1.12 μm -
Minimum Focal Length (2nd Camera) - 40 mm
Camera Functions (2nd Camera) - Macro camera
THIRD CAMERA
Sensor Resolution (3rd Camera) 2 Megapixel 5 Megapixel Samsung Galaxy A31 has higher resolution third camera than OPPO Reno2 Z.
Lens Aperture (3rd Camera) F/2.4 F/2.4 Both phones have the same lens aperture of the third camera.
Pixel Size (3rd Camera) 1.75 μm -
Camera Functions (3rd Camera) - Depth camera
FOURTH CAMERA
Sensor Resolution (4th Camera) 2 Megapixel 5 Megapixel Samsung Galaxy A31 has higher resolution fourth camera than OPPO Reno2 Z.
Lens Type (4th Camera) Bokeh lens -
Lens Aperture (4th Camera) F/2.4 F/2.4 Both phones have the same lens aperture of the fourth camera.
Camera Functions (4th Camera) - Depth camera
FRONT CAMERA
Number of Front Cameras 1 1
Front Camera Design Pop-up -
Sensor Resolution (Front) 16 Megapixel 20 Megapixel Samsung Galaxy A31 has better front camera resolution than OPPO Reno2 Z.
Lens Aperture (Front) F/2.0 F/2.2 OPPO Reno2 Z has better front lens aperture than OPPO Reno2 Z.
Lens Element Qty (Front) 5-element -
Focus Adjustment - Focus free
Special Effects (Front) Video bokeh effect -
Video Resolutions (Front) 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps -
BATTERY AND CHARGING OPPO Reno2 Z Samsung Galaxy A31
Battery Capacity (Battery Size) 4000 mAh 5000 mAh Samsung Galaxy A31 has larger battery capacity than OPPO Reno2 Z.
Fast Charging Technology VOOC Flash Charge technology 3.0 - OPPO Reno2 Z has fast charging technology.
Talk Time - 1980 minutes
Run Time Details Gaming: up to 8 hrs
Playback (video): up to 13 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
CELLULAR OPPO Reno2 Z Samsung Galaxy A31
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System ColorOS 6.1 (based on Android 9) Android 10
User Interface - One UI
Payment Technology - Samsung Pay
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS OPPO Reno2 Z Samsung Galaxy A31
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE 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 6, Band 8, Band 19 Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 1700, 850, 800, 900, 800 2100, 1900, 1700, 850, 900
4G LTE Band Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 18, Band 19, Band 20, Band 26, Band 28, Band 38, Band 39, Band 40, Band 41 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 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300, TDD 2500 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
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 5.0 Bluetooth 5.0
NFC Yes Yes Both phones have an NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA OPPO Reno2 Z Samsung Galaxy A31
Supported Digital Audio Standards - 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, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2
Sound Enhancements Dolby Atmos sound technology, Hi-Res audio -
FEATURES OPPO Reno2 Z 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, hall sensor Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor
Security Devices Fingerprint reader (under display) Fingerprint reader (under display)
Additional Phone Features Fingerprint 3.0, SLA Dual Channel Network 2.0 Samsung KNOX, Game Booster, Samsung Smart Switch, Virtual Proximity Sensing
OTHERS OPPO Reno2 Z Samsung Galaxy A31
Included Accessories Headset, power adapter, SIM card removal tool, cover, USB-C cable, screen protector (pre-applied) Power adapter
Other projects: