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Oppo R9 Plus vs Vivo Y28 8GB

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 band 1(2100), 3(1800), 5(850), 38(2600), 39(1900), 40(2300), 41(2500) LTE band 1(2100), 3(1800), 5(850), 8(900), 28(700), 38(2600), 40(2300), 41(2500)  
Dimensions 163.1 x 80.8 x 7.4 mm 165.7 x 76 x 8 mm  
Sim Type Dual Sim, Hybrid Dual SIM (Nano-SIM)  
Weight 185g 199 g  
Display Type Capacitive touchscreen, 16M colors, Color OS 3.0 IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 760 nits (typ), 1000 nits (HBM)  
Display Size 6.0 Inches, 1080 x 1920 pixels (~367 ppi pixel density) 6.68 Inches   720 x 1608 Pixels (~264 PPI)  
Multitouch Yes
Protection Corning Gorilla Glass 4
Memory 64/128GB built-in 128GB Built-in, 8GB RAM (+8GB Extended RAM), UFS 2.2  
Card slot microSDXC (uses shared SIM 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, dual-band  
BlueTooth Bluetooth v4.1 v5.0 with A2DP, LE  
USB USB(microUSB v2.0, USB Host) USB Type-C 2.0, OTG  
NFC No  
GPS Yes Yes + AGPS, GLONASS, BDS, GALILEO  
Main Camera 16 MP, f/2.0, phase detection autofocus, LED flash, 1/2.8" sensor size, geo-tagging, touch focus, face detection, panorama, HDR, Video (1/2.8" sensor size, geo-tagging, touch focus, face detection, panorama, HDR), 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 16 MP>, f/2.0 8 MP, f/2.1, (wide), Video (1080p@30fps)  
OS Android OS, v5.1 (Lollipop) Android 14 OS  
Chipset Qualcomm MSM89 MediaTek Helio G85 SoC  
Processor 1.8 GHz Quad-Core Cortex-A72, 1.2 GHz Quad-Core Cortex-A53 2.0 Ghz Octa Core  
GPU GPU: Adreno 510 Mali G57 MP2  
Sensors Accelerometer, proximity, compass, GYro, Fingerprint Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Sound 3.5mm audio jack, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone   Smartphone deals
Colors Gold Agate Green, Gleaming Orange  
Battery 4120 mAh (Non removable), 6000 mAh   - Fast battery 44W wired  
Misc GPS + A-GPS support, Active noise cancellation with dedicated mic, Fast battery charging, Google Search, Maps, Gmail, Youtube, Calendar, 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