AGM A9 vs Yezz C21
AGM A9
Yezz C21
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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 850, 900, 1700, 1900, 2100-
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4G networkLTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 12(700), 18(800); LTE-TDD 1900, 2300, 2500, 2600 MHz-
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LTE speedLTE, Cat4, 150 Mbps download, 51 Mbps upload-
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GPRSYesUp to 48 kbps
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EDGEYesNo
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Availability
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Oficially announced2018-102016-7
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Status2018-102016-8
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Design
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BuildAluminium alloy, plastic-
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SIMDual SIM (Nano-SIM/Nano-SIM(microSD))Dual SIM (Mini-SIM)
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Height168 mm113 mm
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Width81.4 mm48.5 mm
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Thickness12.6 mm14.6 mm
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Weight251 g70 g
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WaterproofYes, IP68-
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Dust proofYes, IP68-
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MIL-STD-810GYes-
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ColorsBlackBlack, Blue, Red, White
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Display
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Display typeIPS capacitive touchscreenTFT
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Physical size5.99 inches1.8 inches
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Resolution1080 x 2160 pixels128 x 160 pixels
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Pixel density403 ppi114 ppi
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Display colors16777216262144
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MultitouchYes-
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Hardware
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CPUOcta-core 1.8 GHz Cortex-A53321 MHz
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ChipsetQualcomm Snapdragon 450Spreadtrum SC6531DA
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GPUAdreno 506-
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Memory RAM3, 4 GB4 MB
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Internal storage32, 64 GB4 MB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD
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Memory card max128 GB8 GB
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StorageeMMC-
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Phonebook-Yes
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Call records-Yes
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OS
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OSAndroid 8.1 Oreo-
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Main camera
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Main camera12 MP, 1/2.9" , 1.25 µm
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Primary camera-VGA
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Primary camera resolution4000 x 3000 pixels-
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Primary camera video1080p@30fpsvideo
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Primary camera flashdual-LED flash-
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Primary camera phase detection autofocusphase detection autofocus-
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Camera featuresAutofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-modeNo
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Selfie camera
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Secondary camera-No
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Selfie camera16 MP, f/1.8
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Selfie camera resolution4608 x 3456 pixels-
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Selfie camera video720p@30fps-
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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Notifications-Vibration, Polyphonic, MP3
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EarpieceYes-
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Multimedia
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RadioFM Radio-
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Radio FM-Stereo FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n, 802.11n 5GHz
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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USBType-C reversible connectormicroUSB 2.0
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USB On-The-GoYes-
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Bluetoothv4.0v2.1
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Bluetooth A2DPYes-
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bluetooth LEYes-
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NFCYes-
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GPSYes, with A-GPSNo
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GLONASSYes-
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BeidouYes-
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Features
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Messaging SMS-SMS
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WAP-Yes
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Java-No
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SensorsAccelerometer, compass, fingerprint, gyroscope, light, proximity-
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Browser
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HTMLHTML5-
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity5400 mAh600 mAh
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Battery removableNon-removableRemovable
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Fast battery chargingQualcomm Quick Charge 3.0-
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Talk time-3 h
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Standby time-180 h