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LG Optimus G vs Oppo A57

2G Network GSM 850 / 900 / 1800 / 1900 SIM1: SIM1 GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 900 / 2100 - E975 HSDPA 850 / 900 / 2100  
4G Network LTE 800 / 900 / 1800 / 2100 / 2600 LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)  
Dimensions 131.9 x 68.9 x 8.5 mm 163.7 x 75 x 8 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight 145 g 187 g  
Display Type True HD-IPS + LCD capacitive touchscreen, 16M colors IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   60Hz  
Display Size 6.53 Inches   720 x 1612 Pixels (~270 PPI)  
Memory 32GB built-in 64GB Built-in, 3GB RAM  
Card slot microSDXC  
RAM 2GB RAM
GPRS Yes Yes
EDGE Yes
WLAN WLAN (Wi-Fi 802.11 a/b/g/n Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot  
BlueTooth Bluetooth v5.0 with A2DP, LE  
USB USB USB-C port  
NFC No  
GPS Yes + A-GPS support  
Main Camera 13 MP, autofocus, LED flash, Geo-tagging, face detection, image stabilization, HDR, video(1080p@30fps), 2ndary (1.3MP) Dual 13 MP, f/2.2, 26mm (wide), 1/3.06", AF + 2 MP, f/2.4, (depth), LED Flash   Geo-tagging, touch focus, face detection, HDR, panorama, Video (1080p@30fps)  
Front Camera 8 MP, f/2.0, (wide), HDR, Video (1080p@30fps)  
OS Android OS, v4.1.2 (Jelly Bean) Android 11 OS  
Chipset GP MediaTek MT6765G Helio G35 (12 nm)  
Processor Quad-core 1.5 GHz Krait, Qualcomm MDM9615/APQ8064 Chipset Octa-core (4 x 2.3 GHz Cortex-A53 + 4 x 1.8 GHz Cortex-A53)  
GPU GPU PowerVR GE8320  
Sensors Accelerometer, Compass, FingerPrint, Proximity  
Browser HTML5, Adobe Flash HTML5  
Sound Stereo FM radio with RDS, MP3/WMA/WAV/FLAC/eAAC+/AC3 player, MP4/H.264/H.263/WMV/DviX player, TV-out (via MHL A/V link), SNS applications, Games (Built-in + Downloadable) 3.5mm Audio Jack, MP4/H.264/FLAC player, MP3/eAAC+/WAV player, Speaker Phone  
Colors Black, White Glowing Green, Glowing Black  
Battery Stand-by Up to 456 h (Li-Po Non removable), 5000 mAh   - Fast charging 33W, 50% in 30 min (advertised)  
StandBy Time Stand-by Up to 456 h
Misc Active noise cancellation with dedicated mic, Photo viewer/editor, Document viewer/editor, Organizer, Voice memo/dial/commands, Predictive text input SMS (threaded view), MMS, Email, Push Email   IPX4 water resistant, IP5X dust resistant ,Glass front, Plastic frame, Plastic back, Document viewer, Photo/video editor