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Oppo A1K 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 / 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 154.4 x 77.4 x 8.4mm   163.7 x 75 x 8.2 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)   Dual Sim, Dual Standby (Nano-SIM)  
Weight 170 g   188 g  
Display Type IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 720 nits (peak)  
Display Size 720 x 1560 Pixels (~282 PPI)   6.56 Inches   720 x 1612 Pixels (~269 PPI)  
Protection Corning Gorilla Glass 3   Corning Gorilla Glass  
Memory 32GB Built-in, 2GB RAM   128GB Built-in, 4GB RAM (+4GB virtual RAM)  
Card slot microSD Card, (supports up to 256GB)   microSDXC  
GPRS Yes
WLAN Wi-Fi 802.11 b/g/n, hotspot   Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth v4.2 with A2DP, LE   v5.3 with A2DP, LE, aptX  
USB microUSB 2.0, USB On-The-Go   USB Type-C 2.0, OTG  
NFC No   No  
GPS Yes + A-GPS support & Glonass, BDS   Yes + A-GPS support & Glonass, BDS, GALILEO  
Main Camera Phase detection, Geo-tagging, touch focus, face detection, HDR, panorama, Video ([email protected])   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 5 MP, f/2.0, 1/5", HDR, Video 720p   5 MP, f/2.2, (wide), Panorama, Video (1080p@30fps)  
OS Android 9.0 Pie   Android 13 OS  
Chipset Mediatek MT6762 Helio P22 (12 nm)   Mediatek MT6769 Helio G85 (12nm)  
Processor 2.0 Ghz Octa Core Cortex-A53   Octa-core (2 x 2.0 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU PowerVR GE8320   Arm Mali-G52  
Sensors Accelerometer, Compass, Proximity   Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5   HTML5  
Sound 3.5mm Audio Jack, MP4/H.264/FLAC player, MP3/eAAC+/WAV player, Speaker Phone   3.5mm Audio Jack, MP3/WAV/WMA/eAAC+/FLAC player, MP4/WMV/H.265 player, Speaker  Phone  
Colors Red, Black   Glowing Black, Glowing Blue  
Battery (Li-ion Non removable), 4000 mAh   (Li-Po Non removable), 5000 mAh  
Misc Active noise cancellation with dedicated mic, Document viewer, Photo viewer/editor   SMS(threaded view), MMS, Email, Push Mail, IM   IP54, dust and splash resistant, Photo/video editor, Document viewer