General Mobile GM 9 Pro vs Oppo A31
General Mobile GM 9 Pro
Oppo A31
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 900, 2100
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4G networkLTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 18(800), 38(2600), 40(2300)LTE frequency band 1(2100), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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HSDPA speed42 Mbps42 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speedLTE Cat7, 301.5 Mbps download, 102 Mbps uploadLTE-A
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced20182020-02
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Status20182020-02
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Design
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BuildMetal, glassPlastic
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SIMDual SIM (Nano-SIM/microSD)Dual SIM (Nano-SIM, dual stand-by)
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Height159 mm163.9 mm
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Width75.8 mm75.5 mm
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Thickness7.9 mm8.3 mm
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Weight175 g180 g
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ColorsGray, Gold, SilverBlack, White
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Display
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Display typeAMOLED capacitive touchscreenIPS capacitive touchscreen
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Physical size6.01 inches6.5 inches
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Resolution1080 x 2160 pixels720 x 1600 pixels
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Pixel density402 ppi270 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, Corning Gorilla Glass 5, Oleophobic (lipophobic) coatingScratch resistant
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MultitouchYesYes
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.2 GHz Kryo 260Quad-core 2.3 GHz Cortex-A53
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CPU(second)quad-core 1.84 GHz Kryo 260quad-core 1.8 GHz Cortex-A53
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ChipsetQualcomm Snapdragon 660 MSM8976 PlusMediatek MT6765V/CB Helio P35
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GPUAdreno 512PowerVR GE8320
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Memory RAM4 GB4 GB
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Internal storage64 GB128 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max-256 GB
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Storage-eMMC 5.1
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OS
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OSAndroid 8.1 OreoColorOS 6.1 (Android 9.0 Pie)
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Main camera
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Camera typeDualTriple
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Main camera12 MP, f/1.8 , 25 mm, 1/2.55" , 1.4 µm12 MP, f/1.8
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8 MP2 MP, f/2.4 , 27 mm
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2 MP, f/2.4
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Primary camera resolution4032 x 3025 pixels4096 x 3072 pixels
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Primary camera video2160p@30fps, 720@120fps1080p@30fps
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Primary camera flashdual LED flashLED flash
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Camera featuresAutofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detectionAutofocus, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocus
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Selfie camera
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Selfie camera8 MP, f/2 , 1.4 µm8 MP, f/2.0
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1/5.0" , 1.75 µm
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Selfie camera resolution3264 x 2448 pixels3264 x 2448 pixels
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Selfie camera video1080p@30fps1080p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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EarpieceYesYes
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Multimedia
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RadioFM RadioFM Radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11 acWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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Wi-Fi display-Yes
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WLAN WiFi Dual BandYesYes
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USBType-C reversible connectormicroUSB 2.0
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USB On-The-GoYesYes
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Bluetoothv5.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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GALILEOYes-
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BeidouYes-
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BDS-Yes
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Features
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SensorsAccelerometer, compass, proximity, light, fingerprintAccelerometer, compass, fingerprint, light, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Po
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Battery capacity3800 mAh4230 mAh
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Battery removableNon-removableNon-removable
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Cost
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Price-200 USD
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