vivo X21 vs Energizer Ultimate U620S
vivo X21
Energizer Ultimate U620S
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMAGSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 900, 1900, 2100
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4G networkLTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500)
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HSPA speedHSPA-
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LTE speedLTE-
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GPRSYesYes
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EDGEYesYes
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Availability
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Status20182019-1
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Oficially announced2018-32019-1
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Design
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BuildFront glass, aluminum bodyPlastic, metal
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SIMHybrid Dual SIM (Nano-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height154.5 mm155.8 mm
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Width74.8 mm75.5 mm
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Thickness7.4 mm8.3 mm
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Weight156.2 g-
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ColorsAurora White, Black, Ruby RedBlue, Red
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Display
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Display typeSuper AMOLED capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size6.28 inches6.2 inches
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Resolution1080 x 2280 pixels720 x 1520 pixels
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Pixel density402 ppi265 ppi
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Display colors1677721616777216
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Protection-Scratch resistant, 2.5D curved glass screen
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MultitouchYesYes
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.2 GHz Kryo 260Quad-core 2.3 GHz Cortex-A53
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CPU(second)quad-core 1.8 GHz Kryo 260quad-core 1.8 GHz Cortex-A53
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ChipsetQualcomm SDM660 Snapdragon 660Mediatek MT6765 Helio P35
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GPUAdreno 512PowerVR GE8320
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Memory RAM6 GB4 GB
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Internal storage64, 128 GB64 GB
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Memory cardmicroSD(uses second SIM slot)microSD, microSDHC, microSDXC
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Memory card max256 GB128 GB
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OS
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OSAndroid 8.1 (Oreo)Android 9.0 Pie
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Main camera
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Camera typeDualTriple
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Main camera12 MP, f/1.8 , 1/2.5" , 1.4 µm16 MP
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5 MP, f/2.42 MP
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0.3 MP
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Primary camera resolution4032 x 3024 pixels4608 x 3456 pixels
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Primary camera video1080p@30fps1080p@30fps
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Primary camera Autofocusdual pixel phase detection autofocus-
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Primary camera flashLED flashdual-LED flash
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focusAutofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, scene-mode
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Selfie camera
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Selfie camera12 MP, f/2.016 MP
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Selfie camera resolution4032 x 3024 pixels4608 x 3456 pixels
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Selfie camera video1080p@30fps-
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtones-
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EarpieceYesYes
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Multimedia
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Radio-FM Radio
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Radio FMFM radio-
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11acWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual BandYesYes
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USBmicroUSB 2.0Type-C 1.0 reversible connector
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USB On-The-GoYesYes
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Bluetoothv5.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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Features
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Messaging SMSSMS(threaded view)-
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging Push EmailPush Email-
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SensorsFingerprint (rear-mounted), accelerometer, compass, proximityAccelerometer, fingerprint, compass, gyro, proximity
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Browser
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HTMLHTML5-
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity3200 mAh4000 mAh
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Battery removableNon-removableRemovable
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Fast battery chargingYesYes