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Samsung Galaxy S Duos S7562-DS vs Vivo Y19s

2G Network GSM 850 / 900 / 1800 / 1900 (HSDPA 900 / 2100) SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 850 / 900 / 2100  
4G Network LTE band 1(2100), 5(850), 8(900), 40(2300)  
Dimensions 165.8 x 76.1 x 8.1 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight 120 g 198 g  
Display Type TFT capacitive touchscreen, 16M colors IPS LCD Capacitive Touchscreen, 16M Colors   90Hz, 1000 nits (HBM)  
Display Size 480 x 800 pixels, 4 inches (~233 ppi pixel density 6.68 Inches   720 x 1612 Pixels (~264 PPI)  
Memory 4GB built-in, microSD card (supports up to 32GB) 128GB Built-in, 6GB RAM, eMMC 5.1  
Card slot microSDXC (dedicated slot)  
RAM 768 RAM
GPRS Yes Yes
3G Yes
WLAN Yes Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Yes v5.2 with A2DP, LE  
USB Yes USB Type-C 2.0, OTG  
NFC No  
GPS Yes + A-GPS support & Glonass, BDS, GALILEO, QZSS  
Main Camera Dual Camera: 50 MP, f/1.8, (wide), 1/1.95", PDAF + Auxiliary lens, Ring-LED flash   Panorama, Video (1080p@30fps)  
Front Camera 5 MP, f/2.2  
OS Android OS, v4.0 (Ice Cream Sandwich) Android 14 OS  
Chipset Unisoc Tiger T612 (12 nm)  
Processor Qualcomm MSM7227A Snapdragon Octa-core (2 x 1.8 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU Mali-G57  
Sensors Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser Android HTML5  
Sound Stereo FM Radio with RDS, MP4/H.264/H.263 player, MP3/WAV/eAAC+ player, Youtube, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, Dual Speaker  
Colors Black , white Pearl Silver, Glossy Black, Glacier Blue  
Battery (Li-ion Non removable), 5500 mAh   - Battery charging 15W wired, Reverse wired  
Misc SMS(threaded view), MMS, Email, Push Mail, IM   Glass front, plastic back, plastic frame, IP64, dust and water resistant, MIL-STD-810H compliant*, * does not guarantee ruggedness or use in extreme conditions, Document viewer, Photo/video editor