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Samsung Galaxy S23 Ultra 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 163.4 x 78.1 x 8.9 mm   163.7 x 75 x 8.2 mm  
Sim Type Dual Sim, eSIM (Nano-SIM), (2 Nano-SIMs and eSIM, dual stand-by)   Dual Sim, Dual Standby (Nano-SIM)  
Weight 233 g   188 g  
Display Type Dynamic AMOLED 2X Capacitive Touchscreen, Multitouch   Always-on display, 120Hz, HDR10+, 1750 nits (peak)   IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 720 nits (peak)  
Display Size 6.8 Inches   1440 x 3088 Pixels (~501 PPI)   6.56 Inches   720 x 1612 Pixels (~269 PPI)  
Protection Corning Gorilla Glass Victus   Corning Gorilla Glass  
Memory 512GB Built-in, 12GB 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/6e, tri-band, Wi-Fi Direct   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, OTG   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 Quad Camera: 200 MP, f/1.8, 23mm (wide), 1/1.3", PDAF, Laser AF, OIS 10 MP, f/4.9, 230mm (periscope telephoto), 1/3.52", 1.12µm, dual pixel PDAF, OIS, 10x optical zoom + 10 MP, f/2.4, 70mm (telephoto), 1/3.52", dual pixel PDAF, OIS, 3x optical zoom + 12 MP, f/2.2, 13mm, (ultrawide), 1/2.55", dual pixel PDAF, 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 40 MP, f/2.2, 26mm (wide), 1/2.82   5 MP, f/2.2, (wide), Panorama, Video (1080p@30fps)  
OS Android 13 OS   Android 13 OS  
Chipset Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)   Mediatek MT6769 Helio G85 (12nm)  
Processor Octa-core (1 x 3.36 GHz Cortex-X3 + 2 x 2.8 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; other colors   Glowing Black, Glowing Blue  
Battery (Li-ion Non removable), 5000 mAh   - Fast battery 45W wired, PD3.0 15W 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+), Glass back + Gorilla Glass Victus+), Aluminum frame, IP68 dust/water resistant (up to 1.5m for 30 mins), Armor aluminum frame with tougher drop and scratch resistance (advertised), Stylus, 2.8ms latency (Bluetooth integration, accelerometer, gyro), Samsung DeX, Samsung Wireless DeX (desktop experience support), Bixby natural language commands and dictation, Samsung Pay (Visa, MasterCard certified), Ultra Wideband (UWB) support   SMS(threaded view), MMS, Email, Push Mail, IM   IP54, dust and splash resistant, Photo/video editor, Document viewer