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LG Optimus 4X HD P880 vs Xiaomi Redmi 13

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 / 1900 / 2100  
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)  
Dimensions 132.4 x 68.1 x 8.9 mm 168.6 x 76.3 x 8.2 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight 133 g 198.5 g  
Display Type True HD-IPS LCD capacitive touchscreen, 16M colors, Multi-touch, Optimus UI v3.0 Capacitive IPS LCD Touchscreen, 16M Colors, Multitouch   90Hz  
Display Size 6.8 Inches   1080 x 2400 Pixels (~388 PPI)  
Protection Corning Gorilla Glass 2
Memory 16 GB built-in 128GB Built-in, 8GB RAM  
Card slot microSDXC  
RAM 1GB 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  
BlueTooth Bluetooth v4.0 with A2DP v5.3 with A2DP, LE  
USB USB USB Type-C  
NFC Yes  
GPS Yes Yes + A-GPS support & Glonass, GALILEO,BDS  
Main Camera 8MP, 3264x2448 pixels, autofocus, LED flash, Geo-tagging, face and smile detection, photo sphere, image stabilization, Video (30fps), 2ndary 1.3MP Dual Camera: 108 MP, (wide), PDAF + 2 MP, (depth), LED Flash   HDR, Video (1080p@30fps)  
Front Camera 13 MP, (wide), Video (1080p@30fps)  
OS Android OS, v4.0 (Ice Cream Sandwich) Android 14 OS  
Chipset Mediatek Helio G91 Ultra  
Processor Quad-core 1.5 GHz Cortex-A9, Nvidia Tegra 3 chipset Octa-core (2 x 2.0 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU Mali-G52 MC2  
Sensors Accelerometer, Compass, Fingerprint (side-mounted), Gyro, Virtual proximity sensing  
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, Speaker Phone  
Colors Black, White Black, Blue, Pink, Yellow  
Battery Stand-by Up to 730 h (Non removable), 5030 mAh   - Fast charging 33W wired  
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   NFC (market dependent), IP53, dust and splash resistant, Glass front, plastic frame, glass back, Photo/video editor, Document viewer