Digma Optima Prime 4 3G vs Xiaomi Redmi K30 5G Racing
Digma Optima Prime 4 3G
Xiaomi Redmi K30 5G Racing
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 1900HSDPA 850, 900, 1900, 2100
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4G network-LTE frequency band 1, 3, 5, 7, 8, 34, 38, 39, 40, 41
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5G network-5G band 41, 78; SA/NSA/Sub6
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HSDPA speed-42 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE-A
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5G speed-2+ Gbps download
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-42020-05
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Status2018-42020-05
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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 (Micro-SIM/Mini-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height107.8 mm165.3 mm
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Width188 mm76.6 mm
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Thickness10 mm8.8 mm
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Weight270 g208 g
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ColorsBlackBlue, Mint, Purple, Red, White
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Display
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Display typeTNIPS LCD capacitive touchscreen
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Physical size7 inches6.67 inches
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Resolution1024 x 600 pixels1080 x 2400 pixels
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Pixel density170 ppi395 ppi
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Display colors1677721616777216
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Protection-2.5D curved glass screen, Scratch resistant, Corning Gorilla Glass 5, Oleophobic coating
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MultitouchYes-
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Display features-HDR10, 120Hz sampling rate
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.2 GHz Cortex-A7Single-core 2.8 GHz Kryo 475 Prime
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CPU(second)Single-core 2.2 GHz Kryo 475 Gold
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CPU(third)Hexa-core 1.8 GHz Kryo 475 Silver
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ChipsetSpreadtrum SC7731CQualcomm SDM768 Snapdragon 768G
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GPUMali-400 MP1Adreno 620
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Memory RAM1 GB6 GB
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Internal storage8 GB128 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max64 GB-
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Storage-UFS 2.1
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OS
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OSAndroid 7.0 NougatMIUI 11 (Android 10.0)
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Selfie camera
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Selfie camera type-Dual
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Selfie camera0.31 MP20 MP, f/2.2 , 27 mm, 1/3.4" , 0.8 µm
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2 MP, f/2.4 , 1/5" , 1.75 µm
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Selfie camera resolution640 x 480 pixels5184 x 3800 pixels
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Selfie camera video480p@30fps MP1080p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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EarpieceYesYes
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Multimedia
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RadioFM RadioFM Radio
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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 Hotspot-Yes
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WLAN WiFi Direct-Yes
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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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Bluetoothv4.0v5.1
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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Infrared-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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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 mAh4500 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes(100% in 57 min)
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Main camera
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Camera type-Quad
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Main camera64 MP, f/1.9 , 26 mm, 1/1.72" , 0.8 µm
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8 MP, f/2.2 , 1/4" , 1.12 µm
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5 MP, f/2.4
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2 MP, f/2.4
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Primary camera resolution-5183 x 3800 pixels
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Primary camera video-4K@30fps, 1080p@30/120fps, 720p@960fps; gyro-EIS
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Primary camera flash-dual LED flash
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Camera features-Autofocus, 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, macro-mode, phase detection autofocus
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Cost
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Price-310 USD
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