BLU S91 Pro vs Microsoft Surface Duo
BLU S91 Pro
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 850, 900, 1700, 1900, 2100HSDPA 850, 900, 1900, 2100
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 12, 13, 17, 28, 66LTE 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 speed42.2 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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Status2022-072020-08
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Oficially announced2022-072020-08
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Design
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Build-Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5)
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SIMDual SIM (Nano-SIM, dual stand-by)Nano-SIM, eSIM
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Height164.7 mm145.2 mm
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Width76 mm93.3 mm
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Thickness8.9 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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Weight202 g250 g
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Stylus-Yes
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ColorsBlack, GreenWhite
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Display
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Display typeIPS LCDAMOLED capacitive touchscreen
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Physical size6.5 inches8.1 inches
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Resolution720 x 1600 pixels1800 x 2700 pixels
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Pixel density270 ppi401 ppi
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Display colors1677721616777216
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Protection-Corning Gorilla Glass 5
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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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CPUOcta-coreOcta-core
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CPUQuad-core 2.3 GHz Cortex-A53Single-core 2.84 GHz Kryo 485
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CPU(second)quad-core 1.8 GHz Cortex-A53Triple-core 2.42 GHz Kryo 485
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CPU(third)Quad-core 1.78 GHz Kryo 485
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Chipset-Qualcomm SM8150 Snapdragon 855
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GPU-Adreno 640
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Memory RAM4 GB6 GB
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Internal storage128 GB128, 256 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max256 GB-
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Storage-UFS 3.0
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OS
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OSAndroid 12Android 10
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Main camera
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Camera typeTripleSingle
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Main camera(wide) , 50 MP, f/1.8 , 0.7 µm11 MP, f/2.0 , 1.0 µm, 23 mm
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(ultrawide) , 2 MP, f/2.4 , 115˚
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(depth) , 0.8 MP, f/2.4
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Primary camera video1080p@30fps4K@30/60fps, 1080p@30/60fps, gyro-EIS
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Primary camera flashLED flash-
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Selfie camera
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Selfie camera13 MP
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Selfie camera video1080p@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 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11acWi-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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WLAN WiFi Dual Band-Yes
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USBType-C 2.0Type-C reversible connector
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USB On-The-GoYes-
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Bluetoothv5.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptX-aptX Adaptive
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NFCNo-
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GPSYes, with A-GPSYes, with A-GPS
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Features
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SensorsAccelerometer, compass, fingerprint, proximityAccelerometer, fingerprint, 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 capacity5000 mAh3577 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Cost
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Price180 USD1400 USD