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LG Optimus 4X HD P880 vs Vivo Y73

2G Network GSM 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 2100  
4G Network LTE band 1(2100), 5(850), 8(900), 40(2300)  
Dimensions 132.4 x 68.1 x 8.9 mm 161.2 x 74.3 x 7.38mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight 133 g 170 g  
Display Type True HD-IPS LCD capacitive touchscreen, 16M colors, Multi-touch, Optimus UI v3.0 AMOLED Capacitive Touchscreen, 16M Colors, Multitouch   HDR10, 430 nits (typ), 570 nits (HBM)  
Display Size 6.4 Inches   1080 x 2400 Pixels (~409 PPI)  
Protection Corning Gorilla Glass 2
Memory 16 GB built-in 128GB Built-in, 8GB RAM  
Card slot microSDXC (dedicated slot)  
RAM 1GB RAM
GPRS Yes Yes
WLAN WLAN (Wi-Fi 802.11 a/b/g/n Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot  
BlueTooth Bluetooth v4.0 with A2DP v5.0 with A2DP, LE  
USB USB USB Type-C 2.0, OTG  
NFC No  
GPS Yes Yes + A-GPS support & Glonass, BDS, GALILEO  
Main Camera 8MP, 3264x2448 pixels, autofocus, LED flash, Geo-tagging, face and smile detection, photo sphere, image stabilization, Video (30fps), 2ndary 1.3MP Triple Camera: 664 MP, f/1.8, 26mm (wide), 1/1.72", PDAF + 2 MP, f/2.4, (macro) + 2 MP, f/2.4, (depth), LED Flash   Geo-tagging, Phase detection, Panorama, HDR, Video (4K@30fps, 1080p@30fps, gyro-EIS)  
Front Camera 16 MP, f/2.0, (wide), HDR, Video (1080p@30fps)  
OS Android OS, v4.0 (Ice Cream Sandwich) Android 11 OS  
Chipset Mediatek Helio G95 (12 nm)  
Processor Quad-core 1.5 GHz Cortex-A9, Nvidia Tegra 3 chipset Octa-core (2 x 2.05 GHz Cortex-A76 + 6 x 2.0 GHz Cortex-A55)  
GPU Mali-G76 MC4  
Sensors Accelerometer, Compass, Fingerprint (under display, optical), Gyro, Proximity  
Browser HTML5, Adobe Flash HTML5  
Sound Stereo FM Radio, 3.5mm jack, DivX/Xvid/MP4/DivX/XviD/H.264/H.263 player, MP3/WAV/WMA/eAAC+ player, Google Search, Maps, Gmail, YouTube, Google Talk, Picasa, Games (built-in) 3.5mm Audio Jack, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Speaker Phone  
Colors Black, White Diamond Flare, Roman Black  
Battery Stand-by Up to 730 h (Li-Po Non removable), 4000 mAh   - Fast charging 33W wired, 61% in 30 min (advertised)  
StandBy Time Stand-by Up to 730 h
Misc GPS + A-GPS support, SNS integration, Active noise cancellation with dedicated mic, Document viewer (Word, Excel, PowerPoint, PDF), Organizer, Voice memo, Speakerphone SMS(threaded view), MMS, Email, Push Mail, IM   Active noise cancellation with dedicated mic, Document viewer, Photo/video editor