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Oppo R9 vs Vivo Y19s

2G Network SIM1: GSM 850 / 900 / 1800 / 1900 SIM2: 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 LTE band 1(2100), 5(850), 8(900), 40(2300)  
Dimensions N/a 165.8 x 76.1 x 8.1 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight N/a 198 g  
Display Type Capacitive touchscreen, 16M colors, Color OS IPS LCD Capacitive Touchscreen, 16M Colors   90Hz, 1000 nits (HBM)  
Display Size 6.0 Inches, 1440 x 2560 pixels (~490 ppi pixel density) 6.68 Inches   720 x 1612 Pixels (~264 PPI)  
Multitouch Yes
Protection Corning Gorilla Glass 4
Memory 64GB built-in 128GB Built-in, 6GB RAM, eMMC 5.1  
Card slot microSDXC (dedicated slot)  
RAM 4GB RAM
GPRS Yes Yes
WLAN WLAN (Wi-Fi 802.11 a/b/g/n/ac Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth v4.2 v5.2 with A2DP, LE  
USB USB(microUSB v2.0, USB Host) USB Type-C 2.0, OTG  
NFC No  
GPS Yes Yes + A-GPS support & Glonass, BDS, GALILEO, QZSS  
Main Camera 21 MP, f/2.0, phase detection autofocus, LED flash, f/2.0, phase detection autofocus, LED flash, Video (2160p@30fps, 1080p@30fps), Dual Camera: 50 MP, f/1.8, (wide), 1/1.95", PDAF + Auxiliary lens, Ring-LED flash   Panorama, Video (1080p@30fps)  
Front Camera 13 MP 5 MP, f/2.2  
OS Android v6.0 (Marshmallow) Android 14 OS  
Chipset Qualcomm MSM89 Unisoc Tiger T612 (12 nm)  
Processor 2.15 Dual-Core GHz Kryo, 1.6 GHz Dual-Core Kryo Octa-core (2 x 1.8 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU GPU: Adreno 530 Mali-G57  
Sensors Accelerometer, proximity, compass, GYro, Fingerprint Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Sound FM radio (Not yet Confirmed), 3.5mm audio jack, MP4/WMV/H.264 player, MP3/WAV/WMA/eAAC+/FLAC player, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, Dual Speaker  
Colors Various Pearl Silver, Glossy Black, Glacier Blue  
Battery 3700 mAh (Li-ion Non removable), 5500 mAh   - Battery charging 15W wired, Reverse wired  
Misc GPS + A-GPS support, Active noise cancellation with dedicated mic, Fast battery charging: 75% in 30 min, Google Search, Maps, Gmail, Youtube, Calendar, 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