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Oppo A17K vs Vivo Y28 8GB

2G Network SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900   SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 850 / 900 / 2100   HSDPA 850 / 900 / 2100  
4G Network LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 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 164.2 x 75.6 x 8.3 mm   165.7 x 76 x 8 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)   Dual Sim, Hybrid Dual SIM (Nano-SIM)  
Weight 189 g   199 g  
Display Type IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   480 nits (typ), 600 nits (HBM)   IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 760 nits (typ), 1000 nits (HBM)  
Display Size 5.6 Inches   720 x 1612 Pixels (~269 PPI)   6.68 Inches   720 x 1608 Pixels (~264 PPI)  
Protection Panda Glass  
Memory 64GB Built-in, 3GB RAM (+4GB Extendd RAM)   128GB Built-in, 8GB RAM (+8GB Extended RAM), UFS 2.2  
Card slot microSDXC   microSDXC (uses shared SIM slot)  
GPRS Yes Yes
EDGE Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot   Wi-Fi 802.11 a/b/g/n, dual-band  
BlueTooth v5.3 with A2DP, LE, aptX HD   v5.0 with A2DP, LE  
USB microUSB 2.0, USB On-The-Go   USB Type-C 2.0, OTG  
NFC No   No  
GPS Yes + A-GPS support & Glonass, BDS, GALILEO   Yes + AGPS, GLONASS, BDS, GALILEO  
Main Camera 8 MP, f/2.0, (wide), AF, LED Flash   Geo-tagging, touch focus, face detection, panorama, HDR, Video (1080p@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 5 MP, f/2.2, (wide), Video (1080p@30fps)   8 MP, f/2.1, (wide), Video (1080p@30fps)  
OS Android 12 OS   Android 14 OS  
Chipset MediaTek MT6765 Helio G35 (12 nm)   MediaTek Helio G85 SoC  
Processor Octa-core (4 x 2.3 GHz Cortex-A53 + 4 x 1.8 GHz Cortex-A53)   2.0 Ghz Octa Core  
GPU PowerVR GE8320   Mali G57 MP2  
Sensors Accelerometer, Compass, Fingerprint (side-mounted), Proximity   Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5   HTML5  
Sound 3.5mm Audio Jack, MP3/WAV/WMA/eAAC+/FLAC player, MP4/WMV/H.265 player, Speaker Phone   3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone   Smartphone deals
Colors Navy Blue, Gold   Agate Green, Gleaming Orange  
Battery (Li-Po Non removable), 5000 mAh   - Battery charging 10W   (Non removable), 6000 mAh   - Fast battery 44W wired  
Misc SMS(threaded view), MMS, Email, Push Mail, IM   IPX4 water resistance, Photo/video editor, Document viewer   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