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Samsung Galaxy S23 vs Oppo A18 128GB

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 / 1700(AWS) / 1900 / 2100   HSDPA 850 / 900 / 2100  
4G Network LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100)   LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)  
5G Network SA/NSA/Sub6  
Dimensions 146.3 x 70.9 x 7.6 mm   163.7 x 75 x 8.2 mm  
Sim Type Nano-SIM and eSIM, Dual SIM (2 Nano-SIMs and eSIM, dual stand-by)   Dual Sim, Dual Standby (Nano-SIM)  
Weight 167 g   188 g  
Display Type Dynamic AMOLED 2X Capacitive Touchscreen, Multitouch   120Hz, HDR10+, Always-on display   IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 720 nits (peak)  
Display Size 6.1 Inches   1980 x 2340 Pixels (~503 PPI)   6.56 Inches   720 x 1612 Pixels (~269 PPI)  
Protection Corning Gorilla Glass Victus 2   Corning Gorilla Glass  
Memory 256 Built-in, 8GB RAM, UFS 4.0, UFS 3.1   128GB Built-in, 4GB RAM (+4GB virtual RAM)  
Card slot No   microSDXC  
GPRS Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot   Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth v5.3 with A2DP, LE   v5.3 with A2DP, LE, aptX  
USB USB Type-C 3.2, USB On-The-Go   USB Type-C 2.0, OTG  
NFC Yes   No  
GPS Yes + A-GPS support & Glonass, BDS, GALILEO   Yes + A-GPS support & Glonass, BDS, GALILEO  
Main Camera Triple Camera: 50 MP, f/1.8, 24mm (wide), 1/1.56", Dual Pixel PDAF, OIS + 10 MP, f/2.4, 70mm (telephoto), 1/3.94", PDAF, 3x optical zoom + 12 MP, f/2.2, 13mm, (ultrawide), 1/2.55", Dual Pixel PDAF, Super Steady video, LED Flash   Geo-tagging, touch focus, face/smile detection, Auto HDR, panorama, Video (8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS)   Dual Camera: 8 MP, f/2.0, (wide), AF + 2 MP, f/2.4, (depth, LED Flash   Geo-tagging, touch focus, face detection, panorama, HDR, Video (1080p@30fps)  
Front Camera 12 MP, f/2.2, 25mm (wide), PDAF, Dual video call, Auto-HDR, HDR10+, Video (4K@30/60fps, 1080p@30fps)   5 MP, f/2.2, (wide), Panorama, Video (1080p@30fps)  
OS Android 13 OS   Android 13 OS  
Chipset Qualcomm SM8550 Snapdragon 8 Gen 2 (4 nm)   Mediatek MT6769 Helio G85 (12nm)  
Processor Octa-core (1 x 3.2 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 + 2 x 2.8 GHz Cortex-A710 + 3 x 2.0 GHz Cortex-A510)   Octa-core (2 x 2.0 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU Adreno 740   Arm Mali-G52  
Sensors Accelerometer, Barometer, Compass, FingerPrint (under display, ultrasonic), Gyro, Proximity   Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5   HTML5  
Sound 32-bit/384kHz audio Tuned by AKG, Speaker Phone   3.5mm Audio Jack, MP3/WAV/WMA/eAAC+/FLAC player, MP4/WMV/H.265 player, Speaker  Phone  
Colors Black, Cotton, Green, Violet   Glowing Black, Glowing Blue  
Battery (Li-ion Non removable), 3900 mAh   - Fast charging 25W wired, PD3.0, 50% in 30 min (advertised), 10W wireless (Qi/PMA), 4.5W reverse wireless   (Li-Po Non removable), 5000 mAh  
Misc SMS(threaded view), MMS, Email, Push Mail, IM   Glass front + Gorilla Glass Victus 2), Glass back + Gorilla Glass Victus 2), Aluminum frame, P68 dust/water resistant (up to 1.5m for 30 mins), Armor aluminum frame with tougher drop and scratch resistance (advertised), Document viewer, Photo/video editor   SMS(threaded view), MMS, Email, Push Mail, IM   IP54, dust and splash resistant, Photo/video editor, Document viewer