vivo X21i vs Panasonic Eluga Ray 550
vivo X21i
Panasonic Eluga Ray 550
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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, 2100HSDPA 900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 40(2300), 41(2500)
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HSPA speedHSPAHSPA
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LTE speedLTELTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-52018-4
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Status2018-52018-4
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Design
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BuildAluminium alloy, glassMetal
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SIMHybrid Dual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height154.4 mm152.5 mm
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Width75 mm73.3 mm
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Thickness7 mm8.5 mm
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Weight159 g152 g
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ColorsAurora White, Black, Ruby RedBlack, Blue, Gold
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Display
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Display typeSuper AMOLED capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size6.28 inches5.7 inches
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Resolution1080 x 2280 pixels720 x 1440 pixels
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Pixel density402 ppi282 ppi
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Display colors1677721616777216
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Protection-Asahi Glass
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MultitouchYesYes
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Hardware
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CPUOcta-core-
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CPUQuad-core 2 GHz Cortex-A73Quad-core 1.3 GHz Cortex-A53 ARM
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CPU(second)quad-core 2 GHz Cortex-A53
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ChipsetMediatek MT6771 Helio P60MediaTek MT6737H
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GPUMali-G72 MP3Mali-T720MP2
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Memory RAM4, 6 GB3 GB
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Internal storage64, 128 GB32 GB
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Memory cardmicroSD(uses second SIM slot)microSD
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Memory card max256 GB128 GB
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OS
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OSAndroid 8.1 (Oreo)Android 7.0 (Nougat)
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Main camera
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Camera typeDual-
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Main camera12 MP, f/1.8 , 1/2.5" , 1.4 µm13 MP
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5 MP, f/2.4
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Primary camera resolution4032 x 3024 pixels4160 x 3120 pixels
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Primary camera video1080p@30fps1080p@30fps
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Primary camera Autofocusdual pixel phase detection autofocusautofocus
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focusGeo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Flash-LED flash
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Selfie camera24 MP8 MP
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Selfie camera resolution5632 x 4224 pixels3264 x 2448 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 ringtonesVibration; MP3, WAV ringtones
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EarpieceYesYes
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Multimedia
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Radio FMFM radioFM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11acWi-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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USBmicroUSB 2.0microUSB 2.0
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USB On-The-GoYesYes
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Bluetoothv5.0v4.1
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Bluetooth A2DPYesYes
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bluetooth LEYes-
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Infrared-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IM-IM
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Messaging Push EmailPush EmailPush Email
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SensorsFingerprint (rear-mounted), accelerometer, compass, proximityFingerprint (rear-mounted), accelerometer, compass, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity3425 mAh3250 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYes-