BLU S91 vs Oukitel WP21 Ultra
BLU S91
Oukitel WP21 Ultra
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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, 13, 17, 18, 19, 20, 26, 28, 38, 40, 41, 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, 151 Mbps download, 51 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2022-062023-03
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Status2022-062023-03
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Design
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Build-Metal, polycarbonate, TPU
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height164.8 mm177.3 mm
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Width76.3 mm84.3 mm
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Thickness8.9 mm18.4 mm
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Weight202 g398 g
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Waterproof-IP68/IP69K
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Dust proof-IP68/IP69K
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MIL-STD-810G-Yes
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ColorsBlack, GreenBlack
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Display
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Display typeIPS LCDIPS TFT
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Physical size6.5 inches6.78 inches
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Resolution720 x 1600 pixels1080 x 2400 pixels
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Pixel density270 ppi388 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 2.0 GHz Cortex-A53Dual-core 2.2 GHz Cortex-A76
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CPU(second)quad-core 1.5 GHz Cortex-A53Hexa-core 2.0 GHz Cortex-A55
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Chipset-MediaTek Helio G99 MT6789
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GPU-Mali-G57 MC2
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Memory RAM4 GB12 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 GB1 TB
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OS
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OSAndroid 11Android 12
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Main camera
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Camera typeTripleTriple
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Main camera(wide) , 13 MP(wide) , 64 MP, f/1.9 , 1/1.72" , 0.8 µm
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(macro) , 0.3 MP, f/2.4(night vision) , 20 MP, f/2.4 , 1/2.78" , 1 µm
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(depth) , 0.3 MP, f/2.45 MP
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Primary camera resolution-9280 x 6920 pixels
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Primary camera video1080p@30fps1440p@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 MP20 MP
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Selfie camera features-Face unlock, face detection
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Selfie camera video1080p@30fps1080p@30fps
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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 RadioFM Radio
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Connectivity
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WLANWi-Fi 802.11a, 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 DirectYesYes
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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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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, gyroscope, proximityAccelerometer, barometer, compass, fingerprint, gyroscope, light, pedometer, 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 mAh9800 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Talk time 3G-68.5 h
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Talk time 4G-68.5 h
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Standby time 3G-1150 h
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Standby time 4G-1150 h
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Cost
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Price180 USD470 USD
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Tests and performance
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Antutu-345535 (v9)
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Geekbench(single-core)-546 (v5.2)
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Geekbench(multi-core)-1762 (v5.2)
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SAR value
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SAR EU(head)-0.31 W/kg
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SAR EU(body)-1.08 W/kg
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