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Oppo A91
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Phone Insight
Full Specifications September 4, 2026
Oppo A91 Android 9
Oppo · 2019

Oppo A91

Oppo A91 Android smartphone. Announced Dec 2019. Features 6.4″ display, MT6771V Helio P70 chipset, 4025 mAh battery, 256 GB storage, 8 GB RAM, Corning Gorilla Glass 5.

Display 6.4"
Chipset Helio P70
RAM 4/8 GB
Storage 128GB/256GB storage, microSDXC
Camera 48 MP
Battery 4025 mAh
OS Android 9.0, up to Android 11, ColorOS 11
Build 172g, 7.9mm thickness

Launch

Announced 2019, December 20. Released 2019, December
Status Discontinued

Platform

OS Android 9.0 (Pie), upgradable to Android 11, ColorOS 11
Chipset Mediatek MT6771V Helio P70 (12 nm)
CPU Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU Mali-G72 MP3

Display

Type AMOLED, 430 nits (typ)
Size 6.4 inches, 100.4 cm 2 (~85.5% screen-to-body ratio)
Resolution 1080 x 2400 pixels, 20:9 ratio (~408 ppi density)
Protection Corning Gorilla Glass 5

Memory

Card slot microSDXC (dedicated slot)
Internal 128GB 4GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
memoryother UFS 2.1

Main Camera

Quad 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.3, 119˚ (ultrawide), 1/4.0", 1.12µm 2 MP B/W, f/2.4, 1/5.0", 1.75µm Auxiliary lens
Features LED flash, HDR, panorama
Video 1080p@30fps, gyro-EIS

Selfie camera

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

Body

Dimensions 160.2 x 73.3 x 7.9 mm (6.31 x 2.89 x 0.31 in)
Weight 172 g (6.07 oz)
Build Glass front (Gorilla Glass 5), plastic back, plastic frame
SIM Nano-SIM + Nano-SIM

Battery

Type Li-Po 4025 mAh, non-removable
Charging 20W wired, 50% in 30 min

Sound

Loudspeaker Yes
3.5mm jack Yes

Comms

WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 4.2, A2DP, LE
Positioning GPS, GLONASS, BDS
NFC No
Radio FM radio
USB USB Type-C 2.0, OTG

Network

Technology GSM / CDMA / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 1700(AWS) / 1900 / 2100 - International
4G bands 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International
Speed HSPA, LTE

Features

Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

Misc

Colors Lightening Black, Unicorn White, Blazing Blue, Red
Models PCPM00, CPH2001, CPH2021
Phone Insight phoneinsight.org/ Printed September 4, 2026

For live pricing, photos, and comparisons, visit phoneinsight.org/phones/oppo-a91/

In depth

Full specifications

Announced 2019, December 20. Released 2019, December
Status Discontinued
OS Android 9.0 (Pie), upgradable to Android 11, ColorOS 11
Chipset Mediatek MT6771V Helio P70 (12 nm)
CPU Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU Mali-G72 MP3
Type AMOLED, 430 nits (typ)
Size 6.4 inches, 100.4 cm 2 (~85.5% screen-to-body ratio)
Resolution 1080 x 2400 pixels, 20:9 ratio (~408 ppi density)
Protection Corning Gorilla Glass 5
Card slot microSDXC (dedicated slot)
Internal 128GB 4GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
memoryother UFS 2.1
Quad 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.3, 119˚ (ultrawide), 1/4.0", 1.12µm 2 MP B/W, f/2.4, 1/5.0", 1.75µm Auxiliary lens
Features LED flash, HDR, panorama
Video 1080p@30fps, gyro-EIS
Single 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Features HDR
Video 1080p@30fps
Dimensions 160.2 x 73.3 x 7.9 mm (6.31 x 2.89 x 0.31 in)
Weight 172 g (6.07 oz)
Build Glass front (Gorilla Glass 5), plastic back, plastic frame
SIM Nano-SIM + Nano-SIM
Type Li-Po 4025 mAh, non-removable
Charging 20W wired, 50% in 30 min
Loudspeaker Yes
3.5mm jack Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth 4.2, A2DP, LE
Positioning GPS, GLONASS, BDS
NFC No
Radio FM radio
USB USB Type-C 2.0, OTG
Technology GSM / CDMA / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 1700(AWS) / 1900 / 2100 - International
4G bands 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International
Speed HSPA, LTE
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Colors Lightening Black, Unicorn White, Blazing Blue, Red
Models PCPM00, CPH2001, CPH2021
Price About 200 EUR
PhoneInsight Benchmark
44.3/100
Mid-range

A specs-derived composite score, not a lab benchmark -- useful for ranking and comparison.

Processor 34.8
Display 69.2
Camera 65.5
Battery 65
0.3%Popularity rank
1,307,841 hitsTotal views
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