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Samsung Galaxy A02s 4GB vs Vivo Y18 6GB

2G Network SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900   SIM1: GSM 850 / 900 / 1800SIM2: GSM 850 / 900 / 1800  
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), 20(800), 38(2600), 40(2300), 41(2500)   LTE band 1(2100), 5(850), 8(900), 40(2300)  
Dimensions 164.2 x 75.9 x 9.1mm   163.6 x 75.6 x 8.4 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)   Dual Sim, Dual Standby (Nano-SIM)  
Weight 196 g   185 g  
Display Type PLS TFT Capacitive touchscreen, 16M Colors, Multitouch   Capacitive IPS LCD Touchscreen, 16M Colors, Multitouch   90Hz, 840 nits (HBM)  
Display Size 720 x 1600 Pixels (~270 PPI)   6.6 Inches   720 x 1612 Pixels (~269 PPI)  
Protection Corning Gorilla Galss (unspecified version)  
Memory 64GB Built-in, 4GB RAM   128GB Built-in, 6GB RAM  
Card slot microSD Card, (supports up to 1TB)   microSDXC (dedicated slot, supports up to 1TB)  
GPRS Yes Yes
EDGE Yes
WLAN Wi-Fi 802.11 b/g/n, hotspot   Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot, 2.4GHz/5GHz  
BlueTooth v4.2 with A2DP, LE   v5.0 with A2DP, LE  
USB USB Type-C port   USB Type-C 2.0, OTG  
NFC No   No  
GPS Yes + A-GPS support & Glonass, BDS, GALILEO   Yes + AGPS, GLONASS, BDS, Galileo, QZSS  
Main Camera Geo-tagging, touch focus, face detection, panorama, HDR, Video ([email protected])   Dual Camera: 50 MP, f/1.8, (wide), PDAF+ 0.08 MP, f/3.0 (auxiliary lens), LED Flash   Geo-tagging, Phase detection, Panorama, HDR, Video (1080p@30fps)  
Front Camera 5 MP, f/2.2   8 MP, f/2.0, (wide)  
OS Android 10.0 OS   Android 14 OS  
Chipset Qualcomm SM4250 Snapdragon 450 (11 nm)   Mediatek Helio G85 (12nm)  
Processor 1.8 Ghz Octa Core   Octa-core (2 x 2.0 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU Adreno 506   Mali-G52 MC2  
Sensors Accelerometer, Light Sensor, Proximity   Accelerometer, FingerPrint (Side-mounted), Proximity, Compass  
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, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Speaker Phone  
Colors Black, White   Mocha Brown, Wave Aqua  
Battery - Fast battery charging 15W   (Li-ion Non removable), 5000 mAh   - Battery charging 15W wired  
Misc Glass front + plastic back, plastic frame, Active noise cancellation with dedicated mic, Photo/video editor, Document viewer   SMS(threaded view), MMS, Email, Push Mail, IM   Glass front, plastic frame, plastic back, IP54, dust and splash resistant, Document viewer, Photo/video editor