BLU J4 vs Oppo Ace2
BLU J4
Oppo Ace2
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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, 1900, 2100HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
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4G network-LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 34, 38, 39, 40, 41 - China
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5G network-5G band 1, 3, 41, 78, 79 SA/NSA - China
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HSDPA speed21.1 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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EV-DO speed-3.1 Mbps download, 1.8 Mbps upload
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LTE speed-LTE Cat 20
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2019-102020-04
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Status2019-102020-04
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Design
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BuildPlasticGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height151 mm160 mm
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Width72.3 mm75.4 mm
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Thickness10 mm8.6 mm
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Weight158 g186 g
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ColorsBlack, Blue, BrownGrey, Purple, Silver
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Display
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Display typeIPS LCD capacitive touchscreenAMOLED capacitive touchscreen
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Physical size5.5 inches6.55 inches
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Resolution720 x 1440 pixels1080 x 2400 pixels
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Pixel density293 ppi402 ppi
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Display colors1677721616777216
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Protection-2.5D curved glass screen, Scratch resistant, Corning Gorilla Glass 5
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MultitouchYes-
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Display features-500 nits typ. brightness, HDR10+, 90Hz refresh rate
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.3 GHz Cortex-A7Single-core 2.84 GHz Kryo 585
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CPU(second)Triple-core 2.42 GHz Kryo 585
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CPU(third)Quad-core 1.8 GHz Kryo 585
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Chipset-Qualcomm SM8250 Snapdragon 865
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GPUMali-400Adreno 650
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Memory RAM1 GB8, 12 GB
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Internal storage32 GB128, 256 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max64 GB-
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StorageeMMC 5.1UFS 3.0
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OS
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OSAndroid 8.1 Oreo Go EditionColorOS 7.1 (Android 10)
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Main camera
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Camera typeSingleQuad
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Main camera8 MP48 MP, f/1.7 , 26 mm, 1/2.0" , 0.8 µm
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8 MP, f/2.2 , 13 mm, 1/4.0" , 1.12 µm
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2 MP
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2 MP
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Primary camera resolution-8000 x 6000 pixels
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Primary camera video720p@30fps4K@30/60fps, 1080p@30/60/240fps; gyro-EIS
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Primary camera flashLED flashLED flash
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Camera features-Autofocus, 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, contrast detection autofocus
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Selfie camera
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Selfie camera8 MP16 MP, f/2.4 , 29 mm, 1/3.06" , 1.0 µm
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Selfie camera resolution-4608 x 3456 pixels
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Selfie camera video720p@30fps1080p@30fps
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes, with stereo speakers
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EarpieceYesYes
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Multimedia
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RadioFM RadioNo
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-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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Wi-Fi display-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C 1.0 reversible connector
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USB On-The-Go-Yes
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Bluetoothv4.1v5.1
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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NFC-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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GALILEO-Yes
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Beidou-Yes
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QZSS-Yes
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Features
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SensorsAccelerometerAccelerometer, compass, fingerprint, 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 capacity2200 mAh4000 mAh
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Battery removableRemovableNon-removable
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Fast battery charging-SuperVOOC 2.0 (100% in 30 min)
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Wireless charging-50% in 30 min
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Wireless reverse charging-Yes
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Cost
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Price75 USD780 USD
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