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LG Optimus 3D Max P720 vs Vivo Y28 8GB

2G Network GSM 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 900 / 1900 / 2100 HSDPA 850 / 900 / 2100  
4G Network LTE band 1(2100), 3(1800), 5(850), 8(900), 28(700), 38(2600), 40(2300), 41(2500)  
Dimensions 126.8 x 67.4 x 9.6 mm 165.7 x 76 x 8 mm  
Sim Type Dual Sim, Hybrid Dual SIM (Nano-SIM)  
Weight 148 g 199 g  
Display Type 3D LCD capacitive touchscreen, 16M colors, LG 3D UI IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 760 nits (typ), 1000 nits (HBM)  
Display Size 6.68 Inches   720 x 1608 Pixels (~264 PPI)  
Protection Corning Gorilla Glass 2
Memory 8 GB built-in 128GB Built-in, 8GB RAM (+8GB Extended RAM), UFS 2.2  
Card slot microSD card (supports up to 32GB) microSDXC (uses shared SIM slot)  
RAM 1GB RAM
GPRS Yes Yes
WLAN WLAN (Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n, dual-band  
BlueTooth Bluetooth v3.0 with A2DP v5.0 with A2DP, LE  
USB USB USB Type-C 2.0, OTG  
NFC No  
GPS Yes Yes + AGPS, GLONASS, BDS, GALILEO  
Main Camera 5MP, 2592?1944 pixels, autofocus, LED flash, Geo-tagging, face and smile detection, Stereoscopic photos & videos (30fps), video stabilization, 2ndary Dual Camera: 50 MP, f/1.8, (wide), PDAF + 2 MP, f/2.4, (depth), LED Flash   Geo-tagging, Phase detection, Panorama, HDR, Video (1080p@30fps)  
Front Camera 8 MP, f/2.1, (wide), Video (1080p@30fps)  
OS Android OS, v2.3 (Gingerbread), planned upgrade to v4.0 (Ice Cream Sandwich) Android 14 OS  
Chipset MediaTek Helio G85 SoC  
Processor Dual-core 1.2 GHz Cortex-A9, TI OMAP 4430 chipset 2.0 Ghz Octa Core  
GPU Mali G57 MP2  
Sensors Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5, Adobe Flash HTML5  
Sound Stereo FM radio with RDS, 3.5mm jack, MP4/DivX/XviD/H.264/H.263 player, MP3/WMA/eAAC+ player, TV-out (via MHL A/V link), 1080p@30fps (2D), 720@30fps (3D) playback, HD Converter (games, apps), Google Search, Maps, Gmail, YouTube, Google Talk, Games (built-in) 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone   Smartphone deals
Colors Black Agate Green, Gleaming Orange  
Battery Stand-by Up to 450 h (Non removable), 6000 mAh   - Fast battery 44W wired  
StandBy Time Stand-by Up to 450 h
Misc GPS + A-GPS support, SNS integration, 3D/2D image&video editor, Document viewer/editor (Word, Excel, PowerPoint, PDF), Organizer, Voice memo/dial/commands, Speakerphone SMS(threaded view), MMS, Email, Push Mail, IM   Notification LED round light on the back, Glass front, plastic frame, plastic back, IP64 dust/water resistant, Document viewer, Photo/video editor