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Realme 12 vs Oppo A3x 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 / 2100   HSDPA 850 / 900 / 2100  
4G Network LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500)   LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)  
Dimensions 165.6 x 76.1 x 7.7 mm   165.8 x 76.1 x 7.7 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)   Dual Sim, Dual Standby (Nano-SIM)  
Weight 188 g   186 g  
Display Type AMOLED Capacitive Touchscreen, 16M Colors, Multitouch   120Hz, 600 nits (typ), 2000 nits (peak)   IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 1000 nits (HBM)  
Display Size 6.7 Inches   1080 x 2400 Pixels (~392 PPI)   6.67 Inches   720 x 1604 Pixels (~264 PPI)  
Protection Panda Glass  
Memory 256GB Built-in, 8GB RAM (+8GB Extended RAM)   128GB Built-in, 4GB RAM, eMMC 5.1  
Card slot No   microSDXC  
GPRS Yes Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band   Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth v5.2 with A2DP, LE   v5.0 with A2DP, LE  
USB USB Type-C 2.0   USB Type-C 2.0, OTG  
NFC No   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, 26mm (wide), 1/1.67", PDAF+ 2 MP, f/2.4, (depth), LED Flash   Geo-tagging, Phase detection, HDR, Panorama, Video (1080p@30fps)   Dual Camera: 8 MP, f/2.0, (wide), PDAF + Auxiliary lens, LED Flash   HDR, panorama, Video (1080p@30/60fps)  
Front Camera 16 MP, f/2.4, 24mm (wide), HDR, Video (1080p@30fps, gyro-EIS)   5 MP, f/2.2, (wide), Video (1080p@30fps)  
OS Android 14 OS   Android 14 OS  
Chipset Qualcomm Snapdragon 685 Chipset   Qualcomm Snapdragon 6s Gen 1  
Processor Octa-core (2 x 2.2 GHz Cortex-A76 + 6 x 2.0 GHz Cortex-A55)   Octa Core  
GPU Qualcomm Adreno 610   Adreno 610  
Sensors Accelerometer, Compass, Fingerprint (side-mounted), Gyro, Proximity   Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5   HTML5  
Sound 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker  Phone   3.5mm Audio Jack, Speaker Phone  
Colors Twilight Purple, Woodland Green   Nebula Red, Ocean Blue  
Battery (Li-Po Non removable), 5000 mAh   - Fast battery 67W wired   (Non removable), 5100 mAh   - Fast battery 45W wired, PD2.0, PPS, 50% in 30 min (advertised)  
Misc SMS(threaded view), MMS, Email, Push Mail, IM   Glass front, silicone polymer back (eco leather), plastic frame, IP54, dust and splash resistant, Document viewer, Photo/video editor   SMS(threaded view), MMS, Email, Push Mail, IM   IP54, dust and splash resistant MIL-STD-810H compliant*, * does not guarantee ruggedness or use in extreme conditions, Document editor, Photo/video editor