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Sony Xperia Z2a vs Oppo A18 128GB

2G Network 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 700 / 850 / 900 / 1800 / 1900 / 2100 / 2600 LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)  
Dimensions 137 x 72 x 11 mm 163.7 x 75 x 8.2 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight 163 g 188 g  
Display Type IPS LCD capacitive touchscreen, 16M colors, Shatter proof and scratch-resistant glass, Triluminos display, X-Reality Engine IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 720 nits (peak)  
Display Size 1080 x 1920 pixels, 5.0 inches (approx. 441 ppi pixel density) 6.56 Inches   720 x 1612 Pixels (~269 PPI)  
Multitouch Yes
Protection Corning Gorilla Glass  
Memory 16GB built-in 3GB RAM 128GB Built-in, 4GB RAM (+4GB virtual RAM)  
Card slot microSDXC  
GPRS Yes
WLAN WLAN (HSDPA Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth v4.0 with A2DP v5.3 with A2DP, LE, aptX  
USB USB ( microUSB v2.0 (MHL 3), USB On-the-go, USB Host) USB Type-C 2.0, OTG  
NFC No  
GPS Yes Yes + A-GPS support & Glonass, BDS, GALILEO  
Main Camera 20.7MP, 5248 x 3936 pixels, autofocus, LED Flash, 1/2.3'' sensor size, Geo-tagging, touch focus, face and smile detection, image stabilization, HDR, panorama, Video 2160p@30fps, 1080p@60fps, 720p@120fps, video stabilization, HDR, 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 VGA 5 MP, f/2.2, (wide), Panorama, Video (1080p@30fps)  
OS Android OS, v4.4.2 (KitKat) Android 13 OS  
Chipset GPU: Adreno 33 Mediatek MT6769 Helio G85 (12nm)  
Processor 2.3 GHz Quad-core Krait 400, Qualcomm MSM8974AB Snapdragon 801 Octa-core (2 x 2.0 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU GPU: Adreno 330 Arm Mali-G52  
Sensors Accelerometer, gyro, proximity, compass, barometer Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Sound Stereo FM radio with RDS, 3.5mm audio jack, Xvid/MP4/H.263/H.264 player, MP3/eAAC+/WMA/WAV/Flac player, SNS integration, Games (built-in + downloadable) 3.5mm Audio Jack, MP3/WAV/WMA/eAAC+/FLAC player, MP4/WMV/H.265 player, Speaker  Phone  
Colors Black, White, Turquoise Glowing Black, Glowing Blue  
Battery Music play up to 120 hrs 3000 mAh (Li-Po Non removable), 5000 mAh  
StandBy Time Talk time Up to 15 hrs Stand-by Up to 690 hrs
Misc GPS + A-GPS, support, GLONASS, Active noise cancellation with dedicated mic, ANT+ support, Organizer, TV-out (via MHL 3 A/V link), Document viewer, Voice memo/dial, Predictive text input SMS(threaded view), MMS, Email, Push Mail, IM   IP54, dust and splash resistant, Photo/video editor, Document viewer