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Samsung Galaxy Core 2 vs Vivo Y19s

2G Network SIM1 850 / 900 / 1800 / 1900 SIM2 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 900 / 2100 HSDPA 850 / 900 / 2100  
4G Network LTE band 1(2100), 5(850), 8(900), 40(2300)  
Dimensions 130.3 x 68 x 9.8 mm 165.8 x 76.1 x 8.1 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight 138 g 198 g  
Display Type TFT capacitive touchscreen, 16M colors IPS LCD Capacitive Touchscreen, 16M Colors   90Hz, 1000 nits (HBM)  
Display Size 4.5 inches 480 x 800 pixels (~207 ppi pixel density) 6.68 Inches   720 x 1612 Pixels (~264 PPI)  
Multitouch Yes
Memory 4GB built-in 128GB Built-in, 6GB RAM, eMMC 5.1  
Card slot microSD card (supports up to 64GB) microSDXC (dedicated slot)  
RAM 768MB RAM
GPRS Yes Yes
WLAN WLAN (Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth v4.0 with A2DP v5.2 with A2DP, LE  
USB USB V2.0 USB Type-C 2.0, OTG  
NFC No  
GPS Yes Yes + A-GPS support & Glonass, BDS, GALILEO, QZSS  
Main Camera 5MP, 2592 x 1944 pixels, autofocus, LED flash, geo-tagging, touch focus, face and smile detection, Video (480p@30fps), 2ndary VGA 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, v4.4.2 (KitKat) Android 14 OS  
Chipset Unisoc Tiger T612 (12 nm)  
Processor 1.2 GHz Quad-Core Octa-core (2 x 1.8 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU Mali-G57  
Sensors Accelerometer Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML 5 HTML5  
Sound FM radio, 3.5mm audio jack, MP4/H.264/H.263 player, MP3/WAV/eAAC+ player, SNS integration, YouTube, Google Talk, Image/video editor, Games (built-in + downloadable) 3.5mm Audio Jack, Dual Speaker  
Colors White, Black Pearl Silver, Glossy Black, Glacier Blue  
Battery 2000mAh (Li-ion Non removable), 5500 mAh   - Battery charging 15W wired, Reverse wired  
Misc GPS + A-GPS support & GLONASS, Document viewer, Google Search, Maps, Gmail, Predictive text input,Google Talk, Picasa, Speakerphone 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