BLU S91 Pro vs Ulefone Armor 21
BLU S91 Pro
Ulefone Armor 21
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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, 17, 19, 20, 28, 34, 38, 39, 40, 41, 66
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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EV-DO speed-EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
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LTE speed-LTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2022-072023-05
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Status2022-072023-05
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Design
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Build-Polycarbonate, TPU, metal
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height164.7 mm176 mm
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Width76 mm81.6 mm
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Thickness8.9 mm18.1 mm
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Weight202 g400 g
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Waterproof-IP68/IP69K (1.5m and 30 mins)
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Dust proof-IP68/IP69K
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MIL-STD-810H-Yes
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ColorsBlack, GreenBlack
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Display
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Display typeIPS LCDIPS LCD
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Physical size6.5 inches6.58 inches
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Resolution720 x 1600 pixels1080 x 2408 pixels
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Pixel density270 ppi401 ppi
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Display colors1677721616777216
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Protection-Scratch resistant
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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 Cortex-A76
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CPU(second)quad-core 1.8 GHz Cortex-A53Hexa-core 2.0 GHz Cortex-A55
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Chipset-MediaTek MT8781 Helio G99
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GPU-Mali-G57 MC2
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Memory RAM4 GB8 GB
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Internal storage128 GB256 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 13
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Main camera
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Camera typeTripleDual
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Main camera(wide) , 50 MP, f/1.8 , 0.7 µm(wide) , 64 MP, f/1.9 , 0.8 µm
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(ultrawide) , 2 MP, f/2.4 , 115˚(night vision) , 24 MP, f/1.8
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(depth) , 0.8 MP, f/2.4
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Primary camera resolution-9280 x 6180 pixels
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Primary camera video1080p@30fps-
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Primary camera flashLED flashLED flash
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Camera features-Autofocus, continuous shooting, digital zoom, 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 camera type-Single
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Selfie camera13 MP16 MP, (wide) , f/2.2 , 1.0 µm
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Selfie camera resolution-4608 x 3456 pixels
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Selfie camera features-Face unlock, HDR, face detection
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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 RadioStereo FM radio, RDS, recording
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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 DirectYes-
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WLAN WiFi Dual Band-Yes
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USBType-C 2.0Type-C 2.0
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USB On-The-GoYesYes
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Bluetoothv5.0v5.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Infrared-Yes
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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, barometer, 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-Po
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Battery capacity5000 mAh9600 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes, 33W
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Cost
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Price180 USD240 USD
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Tests and performance
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Antutu-370000 (v9)
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Geekbench(single-core)-567 (v5.2)
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Geekbench(multi-core)-1857 (v5.2)
