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Samsung Galaxy J Max 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), 7(2600), 8(900), 40(2300), 44(700) LTE band 1(2100), 3(1800), 5(850), 8(900), 28(700), 38(2600), 40(2300), 41(2500)  
Dimensions 186.9 x 108.8 x 8.7 mm 165.7 x 76 x 8 mm  
Sim Type Dual Sim, Hybrid Dual SIM (Nano-SIM)  
Weight N/a 199 g  
Display Type TFT capacitive touchscreen, 16M colors IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 760 nits (typ), 1000 nits (HBM)  
Display Size 7.0 inches, 800 x 1280 pixels (~216 ppi pixel density) 6.68 Inches   720 x 1608 Pixels (~264 PPI)  
Multitouch Yes
Memory 8GB built-in 128GB Built-in, 8GB RAM (+8GB Extended RAM), UFS 2.2  
Card slot microSD card (support up to 256GB) (dedicated slot) microSDXC (uses shared SIM slot)  
RAM 1.5GB 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 v4.0 v5.0 with A2DP, LE  
USB USB (microUSB v2.0, USB On-The-Go) USB Type-C 2.0, OTG  
NFC No  
GPS Yes Yes + AGPS, GLONASS, BDS, GALILEO  
Main Camera 8 MP, f/1.9, autofocus, LED flash, Geo-tagging, touch focus, face detection, HDR, panorama, Video (720p@30fps), 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 2 MP, f/2.2 8 MP, f/2.1, (wide), Video (1080p@30fps)  
OS Android OS, v5.1 (Lollipop) Android 14 OS  
Chipset MediaTek Helio G85 SoC  
Processor 1.5 GHz Quad-Core Cortex-A7, Spreadtrum SC8830 Mali-400MP2 2.0 Ghz Octa Core  
GPU Mali G57 MP2  
Sensors Accelerometer Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Sound FM radio with RDS recording, 3.5mm audio jack, MP4/H.264 player, MP3/WAV/eAAC+/Flac player, YouTube, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone   Smartphone deals
Colors Black, Gold Agate Green, Gleaming Orange  
Battery 4000 mAh (Non removable), 6000 mAh   - Fast battery 44W wired  
Misc GPS + A-GPS support & GLONASS, Dual SIM + Nano-SIM, dual stand-by), Google Search, Maps, Gmail, Photo/video editor, Document viewer, Google Talk, 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