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Oppo A77s 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 800 / 850 / 900 / 1700(AWS) / 1900 / 2100   HSDPA 850 / 900 / 2100  
4G Network LTE   LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)  
Dimensions 163.8 x 75 x 8 mm   163.7 x 75 x 8.2 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)   Dual Sim, Dual Standby (Nano-SIM)  
Weight 187 g   188 g  
Display Type IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 480 nits (typ), 600 nits (HBM)   IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 720 nits (peak)  
Display Size 6.6 Inches   720 x 1612 Pixels (~269 PPI)   6.56 Inches   720 x 1612 Pixels (~269 PPI)  
Protection Corning Gorilla Glass  
Memory 128GB Built-in, 8GB RAM, UFS 2.2   128GB Built-in, 4GB RAM (+4GB virtual RAM)  
Card slot microSDXC   microSDXC  
GPRS Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot   Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth v5.0 with A2DP, LE, aptX HD   v5.3 with A2DP, LE, aptX  
USB USB Type-C 2.0, USB On-The-Go   USB Type-C 2.0, OTG  
NFC Yes   No  
GPS Yes + A-GPS support, & GLONASS, BDS, GALILEO, QZSS   Yes + A-GPS support & Glonass, BDS, GALILEO  
Main Camera Dual Camera: 50 MP, f/1.8, (wide), PDAF + 2 MP, f/2.4, (depth), LED Flash   Phase detection, Panorama, HDR, Video (1080p@30fps)   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 8 MP, f/2.0, 26mm (wide), Panorama, Video (1080p@30fps)   5 MP, f/2.2, (wide), Panorama, Video (1080p@30fps)  
OS Android 12 OS   Android 13 OS  
Chipset Qualcomm SM6225 Snapdragon 680 4G (6 nm)   Mediatek MT6769 Helio G85 (12nm)  
Processor Octa-core (4 x 2.4 GHz Kryo 265 Gold + 4 x 1.9 GHz Kryo 265 Silver)   Octa-core (2 x 2.0 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU Adreno 610   Arm Mali-G52  
Sensors Accelerometer, Compass, Fingerprint (side-mounted), Proximity   Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5   HTML5  
Sound 3.5mm Audio Jack, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Speaker Phone   3.5mm Audio Jack, MP3/WAV/WMA/eAAC+/FLAC player, MP4/WMV/H.265 player, Speaker  Phone  
Colors Sunset Orange, Starry Black   Glowing Black, Glowing Blue  
Battery (Li-Po Non removable), 5000 mAh   - Fast charging 33W, 100% in 69 min (advertised)   (Li-Po Non removable), 5000 mAh  
Misc SMS(threaded view), MMS, Email, Push Mail, IM   IP54, dust and water resistant, Glass front, plastic frame, plastic back, Document editor   SMS(threaded view), MMS, Email, Push Mail, IM   IP54, dust and splash resistant, Photo/video editor, Document viewer