BLU S91 Pro vs Fairphone 4
BLU S91 Pro
Fairphone 4
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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, 1700(AWS), 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, 18, 19, 20, 28, 32, 38, 40, 41, 71
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5G network-5G band 1, 3, 5, 7, 8, 20, 28, 38, 41, 71, 77, 78 SA/NSA/Sub6
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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 (4CA), Cat18, 1200 Mbps download, 150 Mbps upload
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5G speed-2.3 Gbps download
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2022-072021-09
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Status2022-072021-09
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Design
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Build-Glass front (Gorilla Glass 5), plastic back, plastic frame
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height164.7 mm162 mm
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Width76 mm75.5 mm
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Thickness8.9 mm10.5 mm
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Weight202 g225 g
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Waterproof-IP54
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Dust proof-IP54
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MIL-STD-810G-Yes
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ColorsBlack, GreenGray, Green, Speckled Green
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Display
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Display typeIPS LCDIPS LCD
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Physical size6.5 inches6.3 inches
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Resolution720 x 1600 pixels1080 x 2340 pixels
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Pixel density270 ppi409 ppi
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Display colors1677721616777216
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Protection-Scratch resistant, Corning Gorilla Glass 5
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.3 GHz Cortex-A53Dual-core 2.2 GHz Kryo 570
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CPU(second)quad-core 1.8 GHz Cortex-A53Hexa-core 1.8 GHz Kryo 570
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Chipset-Qualcomm SM7225 Snapdragon 750G 5G
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GPU-Adreno 619
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Memory RAM4 GB6, 8 GB
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Internal storage128 GB128, 256 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max256 GB2 TB
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OS
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OSAndroid 12Android 11
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Main camera
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Camera typeTripleTriple
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Main camera(wide) , 50 MP, f/1.8 , 0.7 µm(wide) , 48 MP, f/1.6 , 0.8 µm, 1/2.0" , 8x digital zoom
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(ultrawide) , 2 MP, f/2.4 , 115˚(ultrawide) , 48 MP, f/2.2 , 120˚ , 1/2.0" , 0.8 µm
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(depth) , 0.8 MP, f/2.4TOF 3D
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Primary camera resolution-8000 x 6000 pixels
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Primary camera video1080p@30fps4K@30fps, 1080p@30/60fps, gyro-EIS
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Primary camera flashLED flashdual-LED dual-tone flash
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Camera features-Autofocus, continuous shooting, digital zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, scene-mode, phase detection autofocus
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Selfie camera
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Selfie camera type-Single
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Selfie camera13 MP25 MP, (wide) , f/2.2 , 1/2.78" , 0.9 µm
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Selfie camera features-Digital image stabilization, face detection, face unlock, HDR
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Selfie camera video1080p@30fps1080p@30fps, gyro-EIS
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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EarpieceYesYes
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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 3.0, DisplayPort
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USB On-The-GoYes-
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Bluetoothv5.0v5.1
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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NFCNoYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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GALILEO-Yes
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BDS-Yes
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Features
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SensorsAccelerometer, compass, fingerprint, proximityAccelerometer, compass, fingerprint, gyroscope, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity5000 mAh3905 mAh
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Battery removableNon-removableRemovable
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Fast battery charging-Quick Charge, 20W (50% in 30 min)
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Talk time 3G-30 h
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Talk time 4G-13 h
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Standby time 4G-200 h
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Cost
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Price180 USD670 USD
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Tests and performance
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Antutu-385000 (v9)
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Geekbench(single-core)-642 (v5.4)
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Geekbench(multi-core)-1878 (v5.4)
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SAR value
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SAR EU(head)-0.49 W/kg
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SAR EU(body)-0.99 W/kg
