BLU Studio G4 vs Cat S31
BLU Studio G4
Cat S31
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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(AWS), 1900, 2100HSDPA 850, 900, 1900, 2100 - EU; HSDPA 850, 900, 1700(AWS), 1900, 2100 - USA
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4G network-LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800) - EU; LTE frequency band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 12(700), 17(700) - USA
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HSDPA speed21 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speed-LTE, Cat4, 150 Mbps download, 50 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-72017-9
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Status2018-72017-10
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Design
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BuildPlastic-
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SIMDual SIM (Nano-SIM, dual stand-by)Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
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Height141.5 mm146 mm
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Width75.5 mm74.4 mm
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Thickness8.5 mm12.6 mm
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Weight126 g200 g
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Waterproof-IP68, 1.2 m and 35 minutes
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Dust proof-IP68
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MIL-STD-810G-Yes - dust, humidity, rain, salt, vibration, solar radiation, transport and thermal shock resistant
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ColorsBlack, Blue, GoldBlack
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Display
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Display typeIPS capacitive touchscreenTFT capacitive touchscreen
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Physical size5.2 inches4.7 inches
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Resolution720 x 1280 pixels720 x 1280 pixels
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Pixel density282 ppi312 ppi
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Display colors16777216-
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Protection2.5D curved glass screenCorning Gorilla Glass 3
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MultitouchYesYes
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Hardware
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CPUQuad-core 1.3 GHz Cortex-A7Quad-core 1.3 GHz Cortex-A7 ARM
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ChipsetMediatek MT6580Qualcomm MSM8909 Snapdragon 210
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GPUMali-400 MP2Adreno 304
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Memory RAM1 GB2 GB
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Internal storage16 GB16 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD
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Memory card max64 GB64 GB
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OS
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OSAndroid 8.1 Oreo Go EditionAndroid 7.0 (Nougat)
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Main camera
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Main camera8 MP8 MP
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Primary camera resolution3264 x 2448 pixels-
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Primary camera video1080p@30fps720p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashLED flash
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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-modeGeo-tagging, face detection, touch focus
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Selfie camera
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Selfie camera2 MP2 MP
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Selfie camera resolution1600 x 1200 pixels-
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Selfie camera video480p@30fps-
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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Notifications-Vibration; MP3, WAV ringtones
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EarpieceYes-
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Multimedia
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Radio FMFM radioFM 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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USB On-The-Go-Yes
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Bluetoothv4.0v4.1
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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BDS-Yes
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging Email-Email
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Messaging IM-IM
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Messaging Push Email-Push Email
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Java-No
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SensorsAccelerometer, light, proximityAccelerometer, compass, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity2000 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Talk time 2G24 h-
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Talk time 3G15 h-
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Standby time 2G575 h-
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Standby time 3G500 h-
