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Samsung Galaxy S Duos S7562 vs Oppo Reno 15 Pro

2G Network SIM 1: GSM 850 / 900 / 1800 / 1900SIM 2: GSM 850 / 900 / 1800 / 1900 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  
Dimensions 121.5 x 63.1 x 10.5 mm 151.2 x 72.4 x 8.0 mm  
Sim Type Nano-SIM + Nano-SIM + eSIM (max 2 at a time)  
Weight 120 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 inches (~233 ppi pixel density) 6.32 Inches   1216 x 2640 Pixels (~460 PPI)  
Protection Corning Gorilla Glass 7i  
Memory 4GB built-in 256GB Built-in, 12GB RAM, UFS 3.1  
Card slot microSD card (supports up to 32GB) No  
RAM 768 RAM
GPRS Yes
WLAN WLAN (Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band  
BlueTooth Bluetooth v3.0 with A2DP v5.4 with A2DP, LE, aptX HD, LHDC 5  
USB USB USB Type-C 2.0, OTG  
NFC Yes  
GPS Yes Yes + GPS, GLONASS, GALILEO, BDS, QZSS  
Main Camera 5MP, 2592x1944 pixels, Video (VGA 30fps), autofocus, Geo-tagging 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 50 MP, f/2.0, 18mm, (ultrawide), AF, Panorama, HDR, Video (4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR)  
OS Android OS, v4.0 (Ice Cream Sandwich) Android 16 OS  
Chipset GPU Adreno 20 Mediatek Dimensity 8450 (4 nm)  
Processor 1 GHz Cortex-A5, Qualcomm MSM7227A Snapdragon Octa-core (1 x 3.25 GHz Cortex-A725 + 3 x 3.0 GHz Cortex-A725 + 4 x 2.1 GHz Cortex-A725)  
GPU GPU Adreno 200 Mali-G720 MC7  
Sensors Accelerometer, proximity, compass Accelerometer, Compass, Fingerprint (under display, optical), Gyro, Proximity, BeaconLink calls via bluetooth, up to 200m  
Browser HTML, Flash HTML5  
Sound Stereo FM Radio with RDS, MP4/H.264/H.263 player, MP3/WAV/eAAC+ player, Youtube, Google Talk, Games (built-in + downloadable) 24-bit/192kHz audio, Speaker  Phone  
Colors White Dusk Brown, Aurora Blue  
Battery Talk time Up to 13 hrsStand-by Up to 445 hrs1500mAh 6200 mAh   - Fast battery 80W wired, 13.5W PD, 55W PPS, 100% in 53 min, Reverse wired  
StandBy Time Talk time Up to 13 hrsStand-by Up to 445 hrs1500mAh
Misc GPS with A-GPS support, Dual SIM (dual stand-by), Organizer, Document editor, Image editor, Google Search, Maps, Gmail, Calendar, Picasa integration, Voice memo/dial, Predictive text input (Swype), 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)