Oppo A31 vs Oppo A91

Oppo A31

Oppo A31

February, 2020


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Oppo A91

Oppo A91

December, 2019


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Oppo A31 vs Oppo A91


Oppo A31

Oppo A91

Price
EUR: €210EUR: €277
USD: N/AUSD: $645
GBP: N/AGBP: £279
INR: ₹11,490INR: N/A
PKR: Rs.29,999PKR: N/A
Body
Form Factor
Candybar, TouchscreenCandybar, Touchscreen
Dimensions
163.9 x 75.5 x 8.3 mm (6.45 x 2.97 x 0.33 in)160.2 x 73.3 x 7.9 mm (6.31 x 2.89 x 0.31 in)
Weight
180 g (6.35 oz)172 g (6.07 oz)
Build
Glass front (Gorilla Glass 3), plastic back, plastic frameGlass front (Gorilla Glass 5), plastic back, plastic frame
Colors
Fantasy White, Mystery Black, Lake GreenLightening Black, Unicorn White, Blazing Blue, Red
SIM
Dual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
Models
CPH2015, CPH2073, CPH2081, CPH2029, CPH2031PCPM00, CPH2001, CPH2021
Display
Type
IPS LCD, 480 nits (typ)AMOLED, 430 nits (typ)
Size
6.5 inches, 102.0 cm2 (~82.4% screen-to-body ratio)6.4 inches, 100.4 cm2 (~85.5% screen-to-body ratio)
Resolution
720 x 1600 pixels, 20:9 ratio (~270 ppi density)1080 x 2400 pixels, 20:9 ratio (~408 ppi density)
Protection
Corning Gorilla Glass 3Corning Gorilla Glass 5
Brightness
480 nits typ. brightness (advertised)430 nits typ. brightness (advertised)
Network
Technology
GSM / HSPA / LTEGSM / CDMA / HSPA / LTE
2G Bands
GSM 850 / 900 / 1800 / 1900 SIM 1 & SIM 2GSM 850 / 900 / 1800 / 1900 SIM 1 & SIM 2
3G Bands
HSDPA 850 / 900 / 2100 InternationalHSDPA 850 / 1700(AWS) / 1900 / 2100 International
4G Bands
1, 3, 5, 7, 8, 20, 28, 38, 40, 41 International1, 3, 5, 7, 8, 20, 28, 38, 40, 41 International
Memory
Internal
64GB ROM, 4GB RAM

128GB ROM, 4GB RAM

128GB ROM, 6GB RAM
128GB ROM, 4GB RAM

128GB ROM, 8GB RAM

256GB ROM, 8GB RAM
Card Slot
microSDXC (dedicated slot)microSDXC (dedicated slot)
Storage Type
eMMC 5.1UFS 2.1
Connectivity
Speed
HSPA 42.2/5.76 Mbps, LTE-AHSPA 42.2/11.5 Mbps, LTE-A
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspotWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth
5.0, A2DP, LE4.2, A2DP, LE
USB
microUSB 2.0, USB On-The-GoUSB Type-C 2.0, USB On-The-Go
GPS
Yes, with A-GPS, GLONASS, BDSYes, with A-GPS, GLONASS, BDS
NFC
NoNo
Camera
Main Camera
Primary: 12 MP, f/1.8, (wide), 1/2.86", 1.25µm, PDAF

Secondary: 2 MP, f/2.4, (macro)

Third: 2 MP, f/2.4, (depth)
Primary: 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF

Secondary: 8 MP, f/2.3, 119" (ultrawide), 1/4.0", 1.12µm

Third: 2 MP B/W, f/2.4, 1/5.0", 1.75µm

Forth: 2 MP, f/2.4, (depth)
Camera Features
LED flash, HDR, panoramaLED flash, HDR, panorama
Video
1080p@30fps1080p@30fps, gyro-EIS
Selfie Camera
8 MP, f/2.0, (wide), 1/4.0", 1.12µm

Features: HDR

Video: 1080p@30fps
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm

Features: HDR

Video: 1080p@30fps
Multimedia
Radio
FM radioFM radio
Software
Operating System (OS)
Android OS, v9.0 (Pie)Android OS, v9.0 (Pie)
Upgradable
Upgradable to Android 11
UI
ColorOS 6.1ColorOS 11
Hardware
Chipset
Mediatek MT6765V/CB Helio P35 (12nm)Mediatek MT6771V Helio P70 (12nm)
CPU
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU
PowerVR GE8320Mali-G72 MP3
Sensors
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Speakers
YesYes
Audio Jack
3.5 mm3.5 mm
Battery
Battery Type
Li-Po 4230 mAh, non-removableLi-Po 4025 mAh, non-removable
Charging
Fast charging 20W, 50% in 30 min (advertised)

VOOC 3.0

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