HTC Desire 820 dual sim vs Oppo A31 (2015)
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HTC Desire 820 dual sim
Oppo A31 (2015)
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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, 2100TD-SCDMA 1880, 2010
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps uploadLTE, Cat4, 150 Mbps download, 50 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Status2014-112015
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Oficially announced2014-92015-4
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Design
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM/ Micro-SIM, dual stand-by)
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Height157.7 mm131.9 mm
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Width78.7 mm65.5 mm
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Thickness7.7 mm8 mm
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Weight155 g135 g
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ColorsBlue Misty, Flamingo Grey, Marble White, Milky-way Grey, Monarch Orange, Saffron Grey, Santorini White, Tangerine White, Tuxedo GreyBlue, White
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Display
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Display typeLCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size5.5 inches4.5 inches
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Resolution720 x 1280 pixels480 x 854 pixels
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Pixel density267 ppi218 ppi
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Display colors1677721616777216
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Hardware
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CPUQuad-core 1.7 GHz ARM Cortex-A53Quad-core ARM Cortex-A53
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ChipsetQualcomm MSM8939 Snapdragon 615Qualcomm MSM8916 Snapdragon 410
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GPUAdreno 405Adreno 306
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Memory RAM2 GB1 GB
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Internal storage16 GB8 GB
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Memory cardmicroSDmicroSD
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Memory card max128 GB128 GB
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OS
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OSAndroid OS, v4.4.2 (KitKat)Android OS, v4.4 (KitKat)
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Main camera
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Main camera13 MP8 MP
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Primary camera resolution4160 x 3120 pixels3264 x 2448 pixels
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Primary camera video1080p@30fps, 720p@60fps1080p@30fps
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Primary camera Autofocusautofocusautofocus
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, HDR, face detection, simultaneous HD video and image recording, touch focusGeo-tagging
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Selfie camera
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Selfie camera8 MP5 MP
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Selfie camera video1080p-
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Sound
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3.5mm jackYesYes
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LoudspeakerYes, with stereo speakersYes
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NotificationsVibration; MP3, WAV ringtonesVibration; MP3, WAV ringtones
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Multimedia
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Radio FMFM radio-
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11nWi-Fi
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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WLAN DLNAYes-
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USBmicroUSB 2.0microUSB 2.0
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USB hostYes-
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Bluetoothv4.0v4.0
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Bluetooth A2DPYes-
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Bluetooth AptXYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging Push EmailPush EmailPush Email
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JavaYes, via Java MIDP emulatorNo
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SensorsAccelerometer, compass, proximityAccelerometer, proximity
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Browser
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HTMLHTML5Yes
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity2600 mAh2000 mAh
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Battery removableNon-removable-
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Talk time-7 h
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Talk time 3G22 h 40 min-
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Standby time-240 h
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Standby time 3G424 h-
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