Ulefone Armor X vs vivo Y51s
Ulefone Armor X
vivo Y51s
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA
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3G networkHSDPA 850, 900, 1700, 1900, 2100HSDPA 850, 900, 1700(AWS), 2100
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4G networkLTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 18(800)LTE frequency band 1, 3, 4, 5, 8, 34, 38, 39, 40, 41
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5G network-5G band 1, 41, 78; SA/NSA
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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LTE speedLTE, Cat4 150 Mbps download, 51 Mbps uploadLTE Cat 4, 150.8 Mbps download, 51 Mbps upload
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5G speed-3.6+ Gbps download
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-22020-07
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Status2018-22020-07
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Design
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BuildMetal, plasticPlastic
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height159 mm162 mm
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Width78.3 mm76.6 mm
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Thickness14.5 mm8.5 mm
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Weight270 g190 g
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WaterproofYes, IP68-
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Dust proofYes, IP68-
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ColorsBlack, Rose-goldBlack, Blue, White
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Display
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Display typeIPS capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size5.45 inches6.53 inches
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Resolution720 x 1440 pixels1080 x 2340 pixels
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Pixel density295 ppi395 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, Corning Gorilla Glass 3, Oleophobic(lipophobic) coating-
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MultitouchYes-
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.3 GHz Cortex-A53Dual-core 2.0 GHz Cortex-A77
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CPU(second)Hexa-core 1.8 GHz Cortex-A76
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ChipsetMediatek MT6739Exynos 880
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GPUPowerVR GE8100Mali-G76
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Memory RAM2 GB6 GB
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Internal storage16 GB128 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max128 GB-
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Storage-UFS 2.1
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OS
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OSAndroid OS, v7.0 NougatFuntouch 10.5 OS (Android 10)
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Main camera
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Camera typeDualTriple
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Main camera13 MP, f/2.048 MP, f/1.8 , 25 mm, 1/2.0" , 0.8 µm
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5 MP2 MP, f/2.4
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2 MP, f/2.4
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Primary camera resolution4160 x 3120 pixels8000 x 6000 pixels
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Primary camera video720p@30fps4K@30fps, 1080p@30fps; gyro-EIS
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Primary camera flashdual-LED flashLED flash
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Camera featuresAutofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-modeAutofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, RAW
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Selfie camera
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Selfie camera5 MP, f/2.08 MP, f/2.0
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Selfie camera interpolated resolution8 MP-
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Selfie camera resolution2560 x 1920 pixels3264 x 2448 pixels
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Selfie camera video720p@30fps1080p@30fps
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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Earpiece-Yes
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Multimedia
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Radio-No
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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, 802.11n 5 GHzWi-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 Direct-Yes
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WLAN WiFi Dual BandYesYes
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USBmicroUSB 2.0microUSB 2.0
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USB On-The-Go-Yes
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Bluetoothv4.1v5.0
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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Bluetooth AptX-aptX HD
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NFCYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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GALILEO-Yes
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BDS-Yes
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Features
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SensorsAccelerometer, compass, fingerprint, light, proximityAccelerometer, compass, gyroscope, 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 mAh4500 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Talk time 4G-16.7 h
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Standby time 4G-312 h
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Cost
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Price-240 USD
