Xiaomi Mi 4 vs Yezz Classic C21
Xiaomi Mi 4
Yezz Classic C21
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Network
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2G networkGSM 850, 900, 1800, 1900, CDMA 800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1900, 2100, TD-SCDMA 2010-2025/1880-1920, CDMA2000 1xEV-DO-
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4G networkTD-LTE 2570-2620, 1880-1920, 2300-2400-
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HSDPA speed42 Mbps-
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HSUPA speedHSUPA-
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EV-DO speed3.1 Mbps-
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LTE speedLTE-
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2014-72014-3
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Status2014-82014-4
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Design
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SIMMicro-SIMDual SIM (Mini-SIM)
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Height139.2 mm106 mm
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Width68.5 mm45 mm
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Thickness8.9 mm14.5 mm
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Weight149 g73 g
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ColorsBlack, WhiteBlack, Blue, Gray, Green, Purple, Red, White
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Display
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Display typeIPS LCD capacitive touchscreenTFT
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Physical size5.0 inches1.8 inches
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Resolution1080 x 1920 pixels128 x 160 pixels
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Pixel density441 ppi114 ppi
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Display colors1677721666560
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Hardware
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CPUQuad-core 2.5 GHz Krait 400
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ChipsetQualcomm MSM8974AC Snapdragon 801-
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GPUAdreno 330-
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Memory RAM3 GB-
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Internal storage16, 64 GB64 MB
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Memory cardmicroSD
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Memory card max-8 GB
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OS
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OSAndroid OS, v4.4.3 (KitKat)-
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Main camera
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Camera typePhoto / Video-
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Main camera13 MP
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Primary camera resolution4128 x 3096 pixels640 x 480 pixels
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Primary camera video2160p@30fps, 1080p@30fps, 720p@120fpsno
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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Selfie camera
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Secondary camera-No
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Selfie camera8 MP
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Selfie camera video1080p@30fps-
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration; ringtones
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Multimedia
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Radio FMFM radioStereo FM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
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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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WLAN DLNAYes-
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USBmicroUSB 2.0Yes
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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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InfraredYes-
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GPSYes, with A-GPSNo
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GLONASSYes-
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GPS NavigatorBeidou-
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMSMMSMMS
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Messaging EmailEmail-
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Messaging IMIMIM
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Messaging Push EmailPush Mail-
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WAP-Yes
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JavaYes, via Java MIDP emulatorNo
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Browser
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HTMLHTML5-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity3080 mAh600 mAh
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Battery removableNon-removable-
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Talk time-4 h
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Standby time-150 h
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Standby time 3G280 h-