Xiaomi Redmi K40S vs alcatel Go Flip 4
Xiaomi Redmi K40S
alcatel Go Flip 4
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800GSM 850, 1900
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xHSDPA 850, 1700(AWS), 1900
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4G networkLTE frequency band 1, 2, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42LTE frequency band 2, 4, 5, 12, 25, 26, 41, 66, 71
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5G network5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA-
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speedLTE-ALTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Status2022-032021-09
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Oficially announced2022-032021-09
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Design
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BuildGlass front (Gorilla Glass 5), plastic back-
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SIMDual SIM (Nano-SIM, dual stand-by)Nano-SIM
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Height163.2 mm107.3 mm
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Width76 mm55.6 mm
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Thickness7.7 mm19.9 mm
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Weight195 g133 g
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Splash resistantYes-
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ColorsBlack, Blue, Gray, GreenBlue
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Display
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Display typeAMOLEDTN TFT LCD
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Physical size6.67 inches2.8 inches
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Resolution1080 x 2400 pixels240 x 320 pixels
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Pixel density395 ppi143 ppi
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Display colors16777216-
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ProtectionScratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5-
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Display features120Hz, HDR10+, 1300 nits (peak)-
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Additional display-TN TFT
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Resolution of additional display-128 x 128 pixels
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Size of additional display-1.44 inches
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Hardware
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CPUOcta-core-
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CPUSingle-core 3.2 GHz Kryo 585Quad-core 1.3 GHz Cortex-A53
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CPU(second)Triple-core 2.42 GHz Kryo 585
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CPU(third)Quad-core 1.80 GHz Kryo 585
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ChipsetQualcomm SM8250-AC Snapdragon 870 5GQM215 Snapdragon 215
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GPUAdreno 650Adreno 308
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Internal storage128, 256 GB4 GB
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Memory RAM6, 8, 12 GB512 MB
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Memory cardNomicroSD, microSDHC, microSDXC
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StorageUFS 3.1-
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OS
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OSAndroid 12, MIUI 13KaiOS 3.0
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Main camera
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Camera typeTripleSingle
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Main camera(wide) , 48 MP, f/1.8 , 1/2" , 0.8 µm2 MP
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(ultrawide) , 8 MP, 119˚
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(macro) , 2 MP, f/2.4
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Primary camera resolution8000 x 6000 pixels-
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Primary camera video4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS480p@30fps
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Primary camera flashdual-LED dual-tone flash-
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Camera featuresAutofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus-
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Selfie camera
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Selfie camera typeSingle-
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Selfie camera(wide) , 20 MP
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Selfie camera featuresFace unlock, HDR-
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Selfie camera video1080p@30/120fps-
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Sound
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3.5mm jackNoYes
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LoudspeakerYes, with stereo speakersYes
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EarpieceYes-
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Multimedia
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RadioNoFM Radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11axWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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USBType-C 2.0Type-C 2.0
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USB On-The-GoYes-
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Bluetoothv5.2v4.2
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Bluetooth A2DPYesYes
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bluetooth LEYes-
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NFCYesNo
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GPSYes, with A-GPSYes
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GLONASSYes-
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GALILEOYes-
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BDSYes-
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QZSSYes-
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NavICYes-
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Features
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SensorsAccelerometer, color spectrum, compass, fingerprint, gyroscope, proximity-
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Browser
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HTMLHTML5-
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity4500 mAh1850 mAh
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Battery removableNon-removableRemovable
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Fast battery chargingQuick Charge 3+, 67W (100% in 38 min)-
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Tests and performance
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Antutu715000 (v9)-
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Geekbench(single-core)983 (v5.2)-
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Geekbench(multi-core)3362 (v5.2)-
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Cost
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Price290 USD75 USD
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SAR value
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SAR(head)-0.78 W/kg
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SAR(body)-1.27 W/kg
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