Plum Optimax 13 vs Xiaomi Redmi K20
Plum Optimax 13
Xiaomi Redmi K20
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900, CDMA 800
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3G networkHSDPA 850, 1900, 2100HSDPA 850, 900, 1700, 1900, 2100, TD-SCDMA 1900, 2000
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4G network-LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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HSDPA speed21.1 Mbps42 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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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-122019-5
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Status2019-12019-6
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Design
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Build-Aluminium alloy, glass
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SIMDual SIM (Mini-SIM, dual stand-by)Dual SIM (Nano-SIM, dual SIM stand-by)
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Height250.8 mm156.7 mm
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Width158.8 mm74.3 mm
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Thickness10.2 mm8.8 mm
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Weight510 g191 g
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ColorsBlack, Gold, WhiteBlack, Blue, Red
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Display
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Display typeIPS LCD capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size10.1 inches6.39 inches
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Resolution800 x 1280 pixels1080 x 2340 pixels
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Pixel density149 ppi403 ppi
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Display colors1677721616777216
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Protection-2.5D curved glass screen, Scratch resistant, Corning Gorilla Glass 6
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MultitouchYes, max 5 fingersYes
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Display features-HDR 10, Always-On display
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.3 GHz Cortex-A7Dual-core 2.2 GHz Kryo 470
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CPU(second)Hexa-core 1.8 GHz Kryo 470
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ChipsetSpreadtrum SC7731Qualcomm Snapdragon 730
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GPUMali-400Adreno 618
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Memory RAM1 GB6, 8 GB
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Internal storage8 GB64, 128, 256 GB
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Memory cardmicroSDNo
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Memory card max32 GB-
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Storage-UFS 2.1
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OS
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OSAndroid 8.0 Oreo Go EditionMIUI V10.2 (Android 9.0 Pie)
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Main camera
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Camera type-Triple
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Main camera5 MP48 MP, f/1.8 , 26 mm, 1/2" , 0.8 µm, 2x optical zoom
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8 MP, f/2.4 , 53 mm, 1/4" , 1.12 µm
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13 MP, f/2.4 , 12 mm, 1/3" , 0.8 µm
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Primary camera resolution-8000 x 6000 pixels
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Primary camera video720p@30fps2160p@30fps, 1080p@960fps
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Primary camera flashLED flashdual LED flash
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Camera features-Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, RAW, phase detection
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Selfie camera
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Selfie camera2 MP20 MP, f/2.2 , 18 mm
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Selfie camera resolution-5184 x 3880 pixels
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Selfie camera video480p@30fps1080p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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Earpiece-Yes
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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 reversible connector
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USB On-The-Go-Yes
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Bluetoothv4.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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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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Beidou-Yes
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Features
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SensorsAccelerometerAccelerometer, proximity, light, compass, in-display fingerprint, gyroscope, barometer, hall, step detector, step counter
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Browser
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HTMLWAPHTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity4700 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Qualcomm Quick Charge 4+
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Talk time3.5 h-
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Standby time72 h-
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