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Oppo R11 vs Tecno Spark 40

2G Network SIM1: GSM 850 / 900 / 1800 / 1900 SIM2: GSM 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  Best smartphone
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 900 / 2100  
4G Network LTE LTE  
Dimensions N/a 165.6 x 77 x 7.7 mm  
Sim Type Nano-SIM + Nano-SIM  
Weight N/a N/A  
Display Type Capacitive touchscreen, 16M colors IPS LCD Capacitive Touchscreen   120Hz  
Display Size 5.5 Inches, 1080 x 1920 pixels (~401 ppi pixel density) 6.67 Inches   1080 x 2460 Pixels (~403 PPI)  
Multitouch Yes
Memory 16GB built-in 128/256GB Built-in, 4/6/8GB RAM  
Card slot microSDXC  
RAM 2GB RAM
GPRS Yes
WLAN WLAN (Wi-Fi 802.11 a/b/g/n/ac Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth v4.1 v5.4 with A2DP, LE  
USB USB(microUSB v2.0) USB Type-C  
NFC No  
GPS Yes Yes + A-GPS support  
Main Camera Yes Single Camera: 50 MP, (wide), PDAF Auxiliary lens, Dual LED Flash   Panorama, Video (1440p@30fps, 1080p@30fps)  
Front Camera 8 MP, (wide), Dual LED Flash, Video (1080p@30fps)  
OS Android V6.0 (marshmallw) Android 15 OS  
Chipset Mediatek Helio G81 (12 nm)  
Processor Octa-Core, MediaTek MT6580 Octa-core (2 x 2.0 GHz Cortex-A75 + 6x 1.8 GHz Cortex-A55)  
GPU Mali-G52 MC2  
Sensors Accelerometer, proximity, compass, GYro, Fingerprint Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Sound FM radio (not confirmed yet), 3.5mm audio jack, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone  
Colors Varios Ink Black, Titanium Grey, Veil White, Mirage Blue  
Battery 3000 mAh 5200 mAh   - Fast battery 45W wired, 55 min to 100%  
Misc GPS + A-GPS support, Active noise cancellation with dedicated mic, Google Search, Maps, Gmail, Youtube, Calendar, Speakerphone SMS(threaded view), MMS, Email, Push Mail, IM   IP64 dust tight and water resistant (water splashes), Drop resistant up to 1.5m