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General

NameOppo R15 Dream Mirror EditionOPPO A31 2020-
ModelR15 Dream Mirror EditionA31 2020-
PriceTK. 51,990Tk 20,500-

Network

Network TypeGSM / CDMA / HSPA / LTEGSM / HSPA / LTE-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMAGSM 850 / 900 / 1800 / 1900 – SIM 1& SIM 2-
Network 3GHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 2100, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA-
Network 4GLTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International, 1, 2, 3, 4, 5, 7, 8, 28, 38, 41, 66 - USA,1, 3, 5, 8, 38, 40, 41 - India, 1, 3, 5, 7, 8, 38, 40, 41 - Asia-
Network SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE-A-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeAMOLED capacitive touchscreen, 16M ColorsIPS LCD Display-
Display Size6.28 inches, 98.9 cm2 (~84.9% screen-to-body ratio6.5 inches, 102.0 cm2 (~82.4% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels720 x 1600 pixels, 20:9 ratio-
Display MultitouchYesYes-
Display Density401 ppi density270 ppi density-
Display Screen ProtectionCorning Gorilla Glass 5 - ColorOS 5.0--

Camera

Primary CameraDual: 16 MP (f/1.7, 1/2.6`, 1.22 µm, PDAF) + 20 MP (f/1.7, 1/2.8`, 1 µm), , phase detection autofocus, LED Flash12MP, f/1.8, (wide), PDAF
2MP, f/2.4, 27mm (macro), 1/5
2MP, f/2.4, (depth)
-
Secondary Camera20 MP, f/2.0, 1080p 8MP-
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panoramaDigital Zoom, Auto Flash, Face detection, Touch to focus-
Video[email protected]1080p @30fps, 1920×1080 pixels-

Body

Body Dimensions155.3 x 75 x 7.5 mm (6.11 x 2.95 x 0.30 in)163.9 x 75.5 x 8.3 mm (6.45 x 2.97 x 0.33 in)-
Body Weight155.3 x 75 x 7.5 mm (6.11 x 2.95 x 0.30 in)180 g (6.35 oz)-
Body BuildFront glass, ceramic bodyGlass front, plastic back, plastic frame-
Body ColorCeramic Black, Dream Mirror RedFantasy White, Mystery Black, Lake Green-

Launch

Launch AnnouncementMarch, 2018Rumored-
Launch DateRelease April 1st, 201814 February, 2020-

Platform

Operating SystemAndroid 8.1 OreoAndroid 9.0 (Pie); ColorOS 6.1-
CPUOcta-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)-
GPUAdreno 512PowerVR GE8320-
ChipsetQualcomm SDM660 Snapdragon 660Mediatek MT6765V/CB Helio P35 (12nm)-

Memory

Memory Internal128 GB64GB -
Memory ExternalmicroSD, up to 256 GB (uses SIM 2 slot)microSDXC (dedicated slot)-
Ram6 GB 4GB -

Battery

Battery TypeNon-removable Li-Po BatteryLi-Poly (Lithium Polymer)-
Battery Capacity3400 mAh 4230 mAh-

Multimedia

Fm RadioNoNo-

Sound

AudioVibration, MP3, WAV RingtonesVibration, MP3, WAV ringtones-
LoudspeakerYesYes-
3.5mm JackYes - Active noise cancellation with dedicated micYes-

Connectivity

WiFiWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, HotspotWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot-
Bluetooth5.0, A2DP, LE, EDR5.0, A2DP, LE-
USBmicroUSB 2.0, USB On-The-GomicroUSB 2.0, USB On-The-Go-
GPSYes, with A-GPS, GLONASSYes, with A-GPS, GLONASS, BDS-

Features

SensorsFingerprint/rear-mounted, accelerometer, gyro, proximity, compassFingerprint rear-mounted, accelerometer, gyro, proximity, compass-
MessagingSMS(threaded view), MMS, Email, Push EmailSMS(threaded view), MMS, Email, Push Email, IM-
BrowserHTML5HTML5-
JavaNoNo-

Other

Made ByChinaChina-
Other FeaturesFast battery charging: VOOC Flash Charge ,5V/4A MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Document viewer, Photo/video editor--