Cat B15 vs Celkon S1
Cat B15
Celkon S1
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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3G networkHSDPA 900, 2100HSDPA 2100
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HSDPA speedHSDPA, 7.2 MbpsHSDPA
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HSUPA speedHSUPA, 3.6 MbpsHSUPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-122014-2
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Status2014-122014-2
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Design
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SIMDual SIMDual SIM
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Height125 mm144 mm
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Width69.5 mm71 mm
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Thickness15 mm8.9 mm
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Weight170 g137 g
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ColorsBlackBlack
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Display
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Display typeTFT capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size4.0 inches5.0 inches
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Resolution480 x 800 pixels1080 x 1920 pixels
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Pixel density233 ppi441 ppi
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Display colors1677721616777216
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Hardware
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CPUDual-core 1 GHzQuad-core 1.5 GHz
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ChipsetMediatek MT6577-
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GPUPowerVR SGX531-
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Memory RAM512 MB1 GB
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Internal storage4 GB16 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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OS
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OSAndroid OS, v4.1 (Jelly Bean)Android OS, v4.2.1 (Jelly Bean)
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Main camera
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Main camera5 MP13 MP
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Primary camera resolution2592 x 1944 pixels4160 x 3120 pixels
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Primary camera videovideovideo
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Primary camera Autofocusautofocusautofocus
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraVGA camera-
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Selfie camera8 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; Polyphonic, MP3 ringtonesVibration, Polyphonic, MP3 ringtones
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Multimedia
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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv3.0Yes
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GPSYes, with A-GPSYes, with A-GPS
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush EmailPush Mail
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLYesYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity2000 mAh2300 mAh
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Talk time16 h-
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Standby time456 h-