Asus Zenfone 4 Pro ZS551KL vs Asus Zenfone 6 ZS630KL
Asus Zenfone 4 Pro ZS551KL
Asus Zenfone 6 ZS630KL
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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 800, 850, 900, 1700(AWS), 1800, 1900, 2100HSDPA 850, 900, 1700/2100, 1900, 2100
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4G networkLTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 19(800), 20(800), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) - Global, Taiwan; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 41(2500) - US, Canada, Brazil; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500) - IndiaLTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 26(850), 28(700), 38(2600), 39(1900), 40(2300), 41(2500)
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HSDPA speed42.2 Mbps42 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speed-LTE Cat 18, 1.2 Gbps download, 221 Mbps upload
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LTE-A speedLTE-A, (3CA) Cat12, 600 Mbps download, 150 Mbps upload-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2017-82019-5
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Status2017-102019-5
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Design
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Build-Aluminium alloy, glass
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SIMHybrid Dual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual SIM stand-by)
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Height156.9 mm159.1 mm
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Width75.6 mm75.44 mm
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Thickness7.6 mm9.1 mm
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Weight175 g190 g
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ColorsMoonlight white, Pure BlackBlack, Silver
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Display
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Display typeAMOLED capacitive touchscreenIPS
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Physical size5.5 inches6.4 inches
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Resolution1080 x 1920 pixels1080 x 2340 pixels
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Pixel density401 ppi403 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass 52.5D curved glass screen, Scratch resistant, Corning Gorilla Glass 6
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MultitouchYes, max 10 fingersYes
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Display features-HDR10, Bluelight Filter
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.45 GHz KryoSingle-core 2.84 GHz Kryo 485
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CPU(second)quad-core 1.9 GHz KryoTriple-core 2.42 GHz Kryo 485
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CPU(third)Quad-core 1.8 GHz Kryo 485
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ChipsetQualcomm MSM8998 Snapdragon 835Qualcomm SDM855 Snapdragon 855
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GPUAdreno 540Adreno 640
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Memory RAM6 GB6, 8 GB
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Internal storage64, 128 GB64, 128, 256 GB
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Memory cardmicroSD(uses second SIM slot)microSD, microSDHC, microSDXC
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Memory card max256 GB1024 GB
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Storage-UFS 2.1
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OS
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OSAndroid 7.1.1 (Nougat)ZENUI 6.0 (Android 9.0 Pie)
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Main camera
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Camera typeDualDual
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Main camera12 MP, f/1.7 , 25 mm, 2x optical zoom48 MP, f/1.8 , 26 mm, 1/2" , 0.8 µm
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16 MP, 50 mm13 MP, 11 mm, f/2.4
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Primary camera resolution-8000 x 6000 pixels
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Primary camera video2160p@30fps, 1080p@30/60fps, 1080p@120fps, 720p@240fps2160p@60fps, 1080p@240fps, 720@480fps
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Primary camera Autofocuslaser/phase detection autofocus-
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Primary camera flashLED flashdual LED flash
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Primary camera optical image stabilization4-axis optical image stabilization-
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Camera features25mm (1/2.55" sensor size, 1.4 µm pixel size), 50mm (1/3.1" sensor size, 1.0 µm pixel size), geo-tagging, touch focus, face detection, HDR, panoramaAutofocus, continuous shooting, digital 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, RAW, laser autofocus, motorized flip to secondary camera
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Selfie camera
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Selfie camera8 MP, f/1.9 , 22 mm, 1.4 µm
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Selfie camera video1080p-
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Sound
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3.5mm jackYesYes
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LoudspeakerYes, dual speakersYes, with stereo speakers
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NotificationsVibration; MP3, WAV ringtones-
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Earpiece-Yes
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Multimedia
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Radio-Yes
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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, 802.11n 5Ghz, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual BandYesYes
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USBType-C reversible connectorType-C 1.0 reversible connector
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USB On-The-Go-Yes
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Bluetoothv5.0v5.0
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Bluetooth A2DPYesYes
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bluetooth AVRCP-Yes
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bluetooth HFP-Yes
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bluetooth OPP-Yes
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bluetooth LEYes-
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bluetooth HDP-Yes
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bluetooth MAP-Yes
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bluetooth PBAP-PBAP/PAB
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bluetooth GAP-Yes
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Bluetooth EDRYesYes
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bluetooth HSP-Yes
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Bluetooth AptXYes-
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InfraredYes-
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NFCYesYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYesYes
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Beidou-Yes
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BDSYes-
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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 IMIM-
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Messaging Push EmailPush Email-
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JavaNo-
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SensorsFingerprint (front-mounted), accelerometer, color spectrum, compass, gyro, proximityAccelerometer, compass, fingerprint, gyroscope, proximity, light, hall
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity3600 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging50% in 32 minQualcomm Quick Charge 4
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Talk time 2G-33 h
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Talk time 3G27 h 30 min33 h
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Standby time 2G-624 h
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Standby time 3G-624 h