Cell Phone,In the 1990s, the 'second generation' mobile phone systems emerged. Two systems competed for supremacy in the global market: the European developed GSM standard and the U.S. developed CDMA standard. These differed from the previous generation by using digital instead of analog transmission, and also fast out-of-band phone-to-network signaling. The rise in mobile phone usage as a result of 2G was explosive and this era also saw the advent of prepaid mobile phones.

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Friday, May 25, 2018

Oppo A3

  Oppo A3

specification
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA 3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1700(AWS) / 1900 / 21004G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
Dimensions
156 x 75.3 x 7.8 mm (6.14 x 2.96 x 0.31 in)
Weight
159 g (5.61 oz)
BATTERY
Stand-by Time not available Non-removable Li-Ion 3400 mAh battery
MEMORY
Phonebook Interna l128 GB, 4 GB RAM Card slot micro SD, up to 256 GB (dedicated slot) 
Mobile with Memory Card
FEATURES
OSAndroid 8.1 (Oreo)CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
Chipset Mediatek Helio P60GPU Mali-G72 MP3 Sensors Accelerometer, gyro, proximity, 
compass Speed HSPA, LTE 
Messaging 
SMS, MMS, Email, Push Mail SMS(threaded view)
Browser HTML5,nternet Mobile Phones Colors Knight Black, Soybean 
Stardust Silver, Garnet Red FM Radio, MP3 Player, Games, 
Video Calling, Photo editor Mobiles with FM Radio 
Gaming Mobiles Accelerometer Yes GPS Receiver Yes Photo Editor Yes 
MP4/H.264/FLAC player, MP3/eAAC+/WAV player, Document viewer, 
Photo viewer/editor, GPS: Yes, with A-GPS
DATA
Bluetooth 4.2, A2DP, LE Bluetooth Mobiles USB micro
USB 2.0, USB On-The-Go USB Mobiles GPRS Yes GPRS Mobiles EDGE Yes 
EDGE Mobiles WLAN Wi-Fi 802.11 b/g/n/ac, dual-band, WiFi Direct, hotspot WLAN Mobiles
DISPLAY
Type Touch Screen 16M colors, LTPS IPS LCD capacitive touchscreen
Size 2280 x 1080, 6.2 inches, 96.Resolution 1080 x 2280 pixels, 19:9 
ratio (~405 ppi dens Multituch Yes Description Color OS 5.0
CAMERA
Primary16 MP, 16 MP Mobiles, Camera Mobiles Video 1080p@30 fps  FeaturesAuto Focus,
Video, Video Call  Secondary 8 MP (f/2.2) Geo-tagging, touch focus, face detection, 
HDR, panorama
SOUND
Alert types Loudspeaker Yes3.5mm jack Yes MP3 , WAV Type Vibration; MP3, WAV 
ringtones Vibration yes Active noise cancellation with dedicated mic
TESTS
Displayyes Loudspeaker Yes Audio qualityYes Camerayes

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