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Samsung Galaxy S Duos 2 vs Tecno   Camon 40 Premier

2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 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  
Available Available. Released 2013, December
Dimensions 21.5 x 63.1 x 10.6 mm 161 x 75 x 7.7 mm  
Sim Type Dual SIM, dual call (dual stand-by) Nano-SIM + Nano-SIM  
Weight 118 g 193 g  
Display Type TFT capacitive touchscreen, 16M colors LTPO AMOLED Capacitive Touchscreen, 1B Colors   Always-on display, HDR image support, 144Hz, HDR, 1600 nits (HBM)  
Display Size 480 x 800 pixels, 4.0 inches (~233 ppi pixel density) 6.67 Inches   1260 x 2800 Pixels (~460 PPI)  
Multitouch Yes
Protection Corning Gorilla Glass 7i  
Memory 4 GB internal (1.8 GB user available) 256GB Built-in, 12GB RAM (+12GB Extended RAM), UFS 4.x  
Card slot microSD, up to 64 GB No  
RAM 768 MB
GPRS Yes
EDGE Yes
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Yes, v4.0 with A2DP v5.4 with A2DP, LE  
USB Yes, microUSB v2.0 USB Type-C 2.0, OTG  
NFC Yes  
GPS Yes, with A-GPS support and GLONASS Yes + A-GPS support  
Main Camera 5 MP, 2592?1944 pixels, autofocus, LED flash, Video: 720p@30fps 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 Yes, VGA 50 MP, f/2.5, 24mm (wide), 1/2.8", PDAF, Video (4K@30fps, 1080p)  
OS Android OS, v4.2 (Jelly Bean) Android 15 OS, up to 3 major Android upgrades  
Chipset Mediatek Dimensity 8350 (4 nm)  
Processor Dual-core 1.2 GHz 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 HTML5 HTML5  
Radio Stereo FM radio with RDS
Sound 3.5mm HeadJack, Loud Speaker, MP3/MP4/H.263/H.264/WMV player 24-bit/192kHz Hi-Res audio, Speaker Phone  
Colors White, Black Emerald Lake Green, Galaxy Black  
Battery Li-Ion 1500 mAh battery Li-ion Si-Ca 5100 mAh   - Fast battery 70W wired  
StandBy Time (2G) / Up to 280 h (3G)
TalkTime (2G) / Up to 8 h (3G)
Misc Organizer, Document editor, Image editor, Google Search, Maps, Gmail, Calendar, , Voice memo/dial, Predictive text input, Speakerphone 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)