Compare: Oppo A71 vs Oppo A31
General Features
-
5.2"IPS LCD
-
13MP1080p
-
3GB RAMMT6750
-
3000 mAhLi-Ion
Pros
Low sar value (USA)
SD Card area available
Dual sim support
Headphone jack
Cons
No FM Radio
HD+ Screen
Brand
Oppo
Announced
Release Date
2017, September
Status
Available
Out Price
About 180 EUR
Display
Type
IPS LCD
Aspect Ratio and PPI
16:9 ratio - 282 ppi density
Size
5.2 inches, 74.5 cm2 (~68.2% screen-to-body ratio)
Resolution
720 x 1280 pixels
Peak brightness (nit)
Protection
Corning Gorilla Glass 3
Features
BODY
Colors
Gold
Black
Dimensions
148.1 x 73.8 x 7.6 mm (5.83 x 2.91 x 0.30 in)
Weight
137 gr (4.83 oz)
Material
Aluminiumalloy
Certification
Waterproof
Sensors
Accelerometer, proximity, compass
3.5mm Jack
Yes
NFC
No
Infrared
USB Type
microUSB 2.0, USB On-The-Go
Loudspeaker Loudness (dB)
PLATFORM
Chipset
Mediatek MT6750 (28 nm)
CPU
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Bits
64Bit
Cores
8
Process technology
28 nm
GPU
Mali-T860MP2
GPU Cores
2
GPU Frequency
OS
Android 7.1 (Nougat); ColorOS 3.1
MEMORY
RAM Capacity
3GB
RAM Type
LPDDR3
Storage
16GB
SD Card Slot
microSD, up to 256 GB (dedicated slot)
PERFORMANCE SCORES
Antutu Score
Antutu
Geek Bench Score
GeekBench
Single Score
BATTERY
Capacity
3000
Type
Li-Ion
Quick Charge Technology
Video Playback Time
Fast Charging
Wireless Charging
Main Camera
First Camera
Resolution
Sensor
Aperture
f/2.2
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Second Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Third Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Fourth Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Fifth Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Sixth Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Image Resolution
4160 x 3120 pixels, 12.98 MP
Video Resolution and FPS
1080@30
Optical Stabilisation (OIS)
No
Electronic Stabilisation (EIS)
Slow Motion Video
Features
DxOMark Score
Mobile Score (Rear)
Mobile
Selfie Score
Selfie
Selfie Camera
First Camera
Resolution
5 MP
Sensor
Aperture
f/2.4
Pixel Size
Sensor Size
Extra
Second Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Extra
Third Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Extra
Video Resolution and FPS
null
Features
CONNECTIVITY
Technology
GSM / UMTS / LTE
2G Bands
GSM - 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Bands
UMTS 900 / 2100 / 850
4G Bands
LTE Band - 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 40(2300), 41(2500)
5G Bands
TD-SCDMA
Navigation
Yes, with A-GPS
Network Speed
HSPA, LTE
SIM Card Type
Dual SIM (Nano-SIM, dual stand-by)
Number of SIM Area
2
Wi-Fi
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
4.0, A2DP
OTHERS
VoLTE
Yes
FM Radio
No
SAR The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue.
Body SAR (EU)
Head SAR (EU)
Body SAR (USA)
0.422 W/kg
Head SAR (USA)
0.561 W/kg
Additional
Extra
Cooling System
HDMI
General Features
-
4.5"IPS LCD
-
8MPSingle camera
-
1GB RAMSnapdragon 410
-
2000 mAhLi-Ion
Pros
SD Card area available
Dual sim support
Headphone jack
Cons
Low battery capacity
No FM Radio
Brand
Oppo
Announced
Release Date
2015, April 17
Status
Available
Out Price
About 150 EUR
Display
Type
IPS LCD
Aspect Ratio and PPI
16:9 ratio - 218 ppi density
Size
4.5 inches, 55.8 cm2 (~64.6% screen-to-body ratio)
Resolution
480 x 854 pixels
Peak brightness (nit)
Protection
Features
BODY
Colors
White
Blue
Dimensions
131.9 x 65.5 x 8 mm (5.19 x 2.58 x 0.31 in)
Weight
135 gr (4.76 oz)
Material
Glass, Aluminiumalloy
Certification
Waterproof
Sensors
Accelerometer, proximity
3.5mm Jack
Yes
NFC
No
Infrared
USB Type
microUSB 2.0
Loudspeaker Loudness (dB)
PLATFORM
Chipset
Qualcomm Snapdragon 410 8916
CPU
Quad-core 1.2 GHz Cortex-A53
Bits
64Bit
Cores
4
Process technology
28 nm
GPU
Adreno 306
GPU Cores
GPU Frequency
OS
Android 4.4 (KitKat)
MEMORY
RAM Capacity
1GB
RAM Type
LPDDR3
Storage
8GB
SD Card Slot
microSD, up to 256 GB (dedicated slot)
PERFORMANCE SCORES
Antutu Score
Antutu
Geek Bench Score
GeekBench
Single Score
BATTERY
Capacity
2000
Type
Li-Ion
Quick Charge Technology
Video Playback Time
Fast Charging
Wireless Charging
Main Camera
First Camera
Resolution
Sensor
Sony IMX179 Exmor R
Aperture
f/2.2
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Second Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Third Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Fourth Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Fifth Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Sixth Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Optical Zoom
Lens
Extra
Image Resolution
3264 x 2448 pixels, 7.99 MP
Video Resolution and FPS
1920x1080 (Full) - (30 fps)
Optical Stabilisation (OIS)
No
Electronic Stabilisation (EIS)
Slow Motion Video
Features
DxOMark Score
Mobile Score (Rear)
Mobile
Selfie Score
Selfie
Selfie Camera
First Camera
Resolution
5 MP
Sensor
Aperture
Pixel Size
Sensor Size
Extra
Second Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Extra
Third Camera
Resolution
Sensor
Aperture
Pixel Size
Sensor Size
Extra
Video Resolution and FPS
null
Features
CONNECTIVITY
Technology
GSM / LTE
2G Bands
GSM - 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Bands
TD-SCDMA
4G Bands
LTE Band - 38(2600), 39(1900), 40(2300), 41(2500)
5G Bands
TD-SCDMA
TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
TD-SCDMA 2010-2025 MHz
Navigation
Yes, with A-GPS
Network Speed
TD-SCDMA, LTE Cat4 150/50 Mbps
SIM Card Type
Dual SIM (Nano-SIM/ Micro-SIM, dual stand-by)
Number of SIM Area
2
Wi-Fi
Wi-Fi 802.11 b/g/n
Bluetooth
4.0, A2DP
OTHERS
VoLTE
FM Radio
No
SAR The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue.
Body SAR (EU)
Head SAR (EU)
Body SAR (USA)
Head SAR (USA)
Additional
Extra
Cooling System
HDMI