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Samsung Galaxy Y Duos S6312 vs Tecno   Camon 40 Premier

2G Network Sim 1: GSM 850 / 900 / 1800 / 1900 Sim 2: GSM 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100  
4G Network LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300), 41(2500)  
5G Network SA/NSA  
Dimensions N/A 161 x 75 x 7.7 mm  
Sim Type Nano-SIM + Nano-SIM  
Weight N/A 193 g  
Display Type HVGA LCD, 256K colors, TouchWiz UI LTPO AMOLED Capacitive Touchscreen, 1B Colors   Always-on display, HDR image support, 144Hz, HDR, 1600 nits (HBM)  
Display Size 320 x 480 pixels, 3.27 inches (~127 ppi pixel density) 6.67 Inches   1260 x 2800 Pixels (~460 PPI)  
Protection Corning Gorilla Glass 7i  
Memory 4GB built-in 256GB Built-in, 12GB RAM (+12GB Extended RAM), UFS 4.x  
Card slot microSD card(supports up to 64GB) No  
RAM 768 MB RAM
GPRS Yes
WLAN WLAN (Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth v3.0 with A2DP v5.4 with A2DP, LE  
USB USB USB Type-C 2.0, OTG  
NFC Yes  
GPS Yes Yes + A-GPS support  
Main Camera 3 MP, 2048 x 1536 pixels, Geo-tagging, Video (QVGA 24fps) Triple Camera: 50 MP, f/1.9, 23mm (wide), 1/1.56", PDAF, OIS + 50 MP, f/2.2, 70mm (periscope telephoto), 1/2.76", PDAF (15cm - ?), 3x optical zoom + 50 MP, f/2.2, 14mm, (ultrawide), 1/2.76", PDAF, Dual LED Flash   Panorama, HDR, Video (4K@30/60fps (HDR), 1080p@30fps)  
Front Camera 50 MP, f/2.5, 24mm (wide), 1/2.8", PDAF, Video (4K@30fps, 1080p)  
OS Android 4.1, Jelly Bean Android 15 OS, up to 3 major Android upgrades  
Chipset Mediatek Dimensity 8350 (4 nm)  
Processor 1Ghz Octa-core (1 x 3.35 GHz Cortex-A715 + 3 x 3.20 GHz Cortex-A715 + 4 x 2.20 GHz Cortex-A510)  
GPU Mali G615-MC6  
Sensors Accelerometer, proximity, compass Accelerometer, Compass, Fingerprint (under display, optical), Gyro, Proximity, Circle to Search  
Browser HTML (Adobe Flash) HTML5  
Sound Stereo FM radio with RDS, 3.5mm audio jack, MP4/WMV/H.264 player, MP3/WAV/eAAC+ player, YouTube, Google Talk, Image/video editor, SNS integration, Games (built-in + downloadable) 24-bit/192kHz Hi-Res audio, Speaker Phone  
Colors Black Emerald Lake Green, Galaxy Black  
Battery Stand-by Up to 360 h Li-ion Si-Ca 5100 mAh   - Fast battery 70W wired  
StandBy Time Stand-by Up to 360 h
Misc Dual SIM (dual stand-by), GPS + A-GPS support, Samsung hub service,Games hub, DropBox Cloud storage, Sync & backup, Quickoffice document viewer/editor, Google Search, Maps, Gmail, Calendar, Picasa integration, Organizer, Predictive text input (Swype) SMS(threaded view), MMS, Email, Push Mail, IM   IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 2m for 30 min)