Bravis A511 Harmony vs Microsoft Surface Duo
Bravis A511 Harmony
Microsoft Surface Duo
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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 900, 2100HSDPA 850, 900, 1900, 2100
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4G network-LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 19 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 66
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HSDPA speed21 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speed-LTE-A (CA) Cat18, 1200 Mbps download, 100 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-122020-08
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Status2018-122020-08
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Design
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BuildPlasticGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5)
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SIMDual SIM (Micro-SIM, dual stand-by)Nano-SIM, eSIM
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Height146 mm145.2 mm
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Width72 mm93.3 mm
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Thickness10 mm9.9 mm
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Height unfolded-186.9 mm
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Width unfolded-145.2 mm
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Thickness unfolded-4.8 mm
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Weight143 g250 g
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Stylus-Yes
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ColorsGold, BlackWhite
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Display
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Display typeIPS capacitive touchscreenAMOLED capacitive touchscreen
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Physical size5 inches8.1 inches
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Resolution720 x 1280 pixels1800 x 2700 pixels
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Pixel density294 ppi401 ppi
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Display colors1677721616777216
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Protection-Corning Gorilla Glass 5
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MultitouchYes-
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Cover display-AMOLED capacitive touchscreen
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Cover display physical size-5.6 inches
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Cover display resolution-1350 x 1800 pixels
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.3 GHz Cortex-A7Single-core 2.84 GHz Kryo 485
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CPU(second)Triple-core 2.42 GHz Kryo 485
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CPU(third)Quad-core 1.78 GHz Kryo 485
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ChipsetMediatek MT6580AQualcomm SM8150 Snapdragon 855
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GPUMali-400 MP2Adreno 640
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Memory RAM1 GB6 GB
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Internal storage8 GB128, 256 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max32 GB-
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Storage-UFS 3.0
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OS
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OSAndroid v8.1 OreoAndroid 10
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Main camera
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Camera typeDualSingle
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Main camera8 MP11 MP, f/2.0 , 23 mm, 1.0 µm
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Primary camera resolution3264 x 2448 pixels-
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Primary camera video720p@30fps4K@30/60fps, 1080p@30/60fps, gyro-EIS
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Primary camera 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-
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Selfie camera
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Selfie camera5 MP
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Selfie camera resolution2560 x 1920 pixels-
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Selfie camera video480p@30fps4K@30/60fps, 1080p@30/60fps, gyro-EIS
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Sound
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3.5mm jackYes-
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LoudspeakerYesYes, with stereo speakers
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EarpieceYes-
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Multimedia
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RadioFM RadioNo
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-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 Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C reversible connector
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Bluetoothv4.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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Bluetooth AptX-aptX Adaptive
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GPSYes, with A-GPSYes, with A-GPS
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Features
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SensorsAccelerometer, fingerprintAccelerometer, fingerprint, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity3200 mAh3577 mAh
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Battery removable-Non-removable
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Fast battery charging-Yes
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Cost
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Price-1400 USD
