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Samsung Galaxy S Duos 2 vs Oppo Reno 15 Pro

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 800 / 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), 12(700), 17(700), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)  
5G Network SA/NSA  
Available Available. Released 2013, December
Dimensions 21.5 x 63.1 x 10.6 mm 151.2 x 72.4 x 8.0 mm  
Sim Type Dual SIM, dual call (dual stand-by) Nano-SIM + Nano-SIM + eSIM (max 2 at a time)  
Weight 118 g 187 g  
Display Type TFT capacitive touchscreen, 16M colors AMOLED Capacitive Touchscreen, 1B Colors   120Hz, HDR10+, 600 nits (typ), 1800 nits (HBM)  
Display Size 480 x 800 pixels, 4.0 inches (~233 ppi pixel density) 6.32 Inches   1216 x 2640 Pixels (~460 PPI)  
Multitouch Yes
Protection Corning Gorilla Glass 7i  
Memory 4 GB internal (1.8 GB user available) 256GB Built-in, 12GB RAM, UFS 3.1  
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/6e, dual-band  
BlueTooth Yes, v4.0 with A2DP v5.4 with A2DP, LE, aptX HD, LHDC 5  
USB Yes, microUSB v2.0 USB Type-C 2.0, OTG  
NFC Yes  
GPS Yes, with A-GPS support and GLONASS Yes + GPS, GLONASS, GALILEO, BDS, QZSS  
Main Camera 5 MP, 2592?1944 pixels, autofocus, LED flash, Video: 720p@30fps Triple Camera: 200 MP, f/1.8, 24mm (wide), 1/1.56", PDAF, OIS + 50 MP, f/2.8, 85mm (telephoto), PDAF, OIS, 3.5x optical zoom + 50 MP, f/2.0, 16mm, (ultrawide), AF, LED Flash   Color spectrum sensor, HDR, panorama, Video (4K@30/60fps, 1080p@30/60/120/240/480fps, gyro-EIS, HDR, OIS)  
Front Camera Yes, VGA 50 MP, f/2.0, 18mm, (ultrawide), AF, Panorama, HDR, Video (4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR)  
OS Android OS, v4.2 (Jelly Bean) Android 16 OS  
Chipset Mediatek Dimensity 8450 (4 nm)  
Processor Dual-core 1.2 GHz Octa-core (1 x 3.25 GHz Cortex-A725 + 3 x 3.0 GHz Cortex-A725 + 4 x 2.1 GHz Cortex-A725)  
GPU Mali-G720 MC7  
Sensors Accelerometer, proximity, compass Accelerometer, Compass, Fingerprint (under display, optical), Gyro, Proximity, BeaconLink calls via bluetooth, up to 200m  
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 audio, Speaker  Phone  
Colors White, Black Dusk Brown, Aurora Blue  
Battery Li-Ion 1500 mAh battery 6200 mAh   - Fast battery 80W wired, 13.5W PD, 55W PPS, 100% in 53 min, Reverse 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   Glass front + Gorilla Glass 7i), aluminum frame, glass back, IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)