Oppo A8 vs Oppo A91

Phones Images
PHONES
Phone Names Oppo A8 Oppo A91
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100HSDPA 850 / 1700(AWS) / 1900 / 2100 - International
4G bands1, 3, 5, 8, 34, 38, 39, 40, 411, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / CDMA / HSPA / EVDO / LTEGSM / CDMA / HSPA / LTE
 CDMA2000 1xEV-DO 1, 3, 4, 5, 8, 34, 38, 39, 40, 41 - China
Launch
Announced2019, December. Released 2019, December2019, December 20. Released 2019, December
StatusDiscontinuedDiscontinued
Body
BuildGlass front, plastic back, plastic frameGlass front (Gorilla Glass 5), plastic back, plastic frame
Dimensions163.9 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)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight180 g (6.35 oz)172 g (6.07 oz)
Display
Protection-Corning Gorilla Glass 5
Resolution720 x 1600 pixels, 20:9 ratio (~269 ppi density)1080 x 2400 pixels, 20:9 ratio (~408 ppi density)
Size6.5 inches, 102.8 cm2 (~83.0% screen-to-body ratio)6.4 inches, 100.4 cm2 (~85.5% screen-to-body ratio)
TypeIPS LCD, 480 nits (typ)AMOLED, 430 nits (typ)
Platform
CPUOcta-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
ChipsetMediatek MT6765V/CB Helio P35 (12 nm)Mediatek MT6771V Helio P70 (12 nm)
GPUPowerVR GE8320Mali-G72 MP3
OSAndroid 9.0 (Pie), ColorOS 6.1Android 9.0 (Pie), upgradable to Android 11, ColorOS 11
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (dedicated slot)
Internal128GB 4GB RAM, 64GB 4GB RAM128GB 4GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
 eMMC 5.1UFS 2.1
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
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
Triple12 MP, f/1.8, (wide), PDAF 2 MP (macro) Auxiliary lens-
Video1080p@30fps1080p@30fps, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single8 MP, f/2.016 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE4.2, A2DP, LE
NFCNoNo
PositioningGPS, BDSGPS, GLONASS, BDS
RadioFM radioFM radio
USBmicroUSB 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (rear-mounted), accelerometer, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging-20W wired, 50% in 30 min
TypeLi-Po 4230 mAhLi-Po 4025 mAh, non-removable
Misc
ColorsGreen, BlackLightening Black, Unicorn White, Blazing Blue, Red
ModelsPDBM00PCPM00, CPH2001, CPH2021
PriceAbout 150 EURAbout 200 EUR