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Oppo F1 vs Realme C51 128GB

2G Network SIM1: GSM 900 / 1800 / 1900 SIM2: GSM 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 LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)  
Dimensions 143.5 x 71 x 7.3 mm 167.2 x 76.7 x 8 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight 134g 186 g  
Display Type IPS LCD capacitive touchscreen, 16M colors, Color OS 2.1 IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   90Hz, 560 nits (peak)  
Display Size 5.0 inches, 1080 x 1920 pixels (~294 ppi pixel density) 6.74 Inches   720 x 1600 Pixels (~260 PPI)  
Multitouch Yes
Protection Corning Gorilla Glass 4 Panda Glass  
Memory 16GB built-in 128GB Built-in, 4GB RAM  
Card slot MicroSD card (Support up to 128GB) (uses SIM 2 slot) microSDXC (dedicated slot)  
RAM 3GB RAM
GPRS Yes Yes
WLAN WLAN (Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth v4.0 v5.0 with A2DP, LE  
USB USB (microUSB v2.0, USB Host) USB Type-C 2.0  
NFC Yes  
GPS Yes Yes + A-GPS support, & GLONASS, BDS, GALILEO  
Main Camera 13 MP, f/2.2, phase detection Autofocus, Geo-tagging, LED flash, touch focus, face detection, HDR, panorama, Dual Camera: 50 MP, f/1.8, 27mm (wide), 1/2.76", PDAF + 0.08 MP, f/3.0, (depth), LED Flash   HDR, panorama, Video (1080p@30fps)  
Front Camera 8 MP 1080p, flash 5 MP, f/2.2, 28mm (wide), 1/5", HDR, Video (720p@30fps)  
OS Android OS, v5.1 (Lollipop) Android 13 OS  
Chipset Qualcomm MSM89 Unisoc Tiger T612 (12 nm)  
Processor 1.7 GHz Octa-Core Cortex-A53 Octa-core (2 x 1.8 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU GPU: Adreno 405 Mali-G57  
Sensors Accelerometer, proximity, compass Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Sound FM radio (Not yet confirmed), 3.5mm audio jack, MP4/H.264/FLAC player, MP3/eAAC+/WAV player, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, Speaker Phone  
Colors White, Gold Mint Green, Carbon Black  
Battery 2500 mAh (Li-Po Non removable), 5000 mAh   - Fast charging 33W wired, 0-50% in 28 min (advertised)  
Misc GPS + A-GPS support, Dual SIM + Nano-SIM/ Micro-SIM, dual stand-by), Document viewer, Photo/video editor, Google Search, Maps, Gmail, Youtube, Calendar, Speakerphone SMS(threaded view), MMS, Email, Push Mail, IM   NFC 360? (market/region dependent), Glass front, plastic frame, plastic back, Photo/video editor, Document viewer