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Microsoft Lumia 850 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 IPS LCD capacitive touchscreen, 16M colors, ClearBlack display IPS LCD Capacitive Touchscreen   120Hz  
Display Size 5.0 inches, 720 x 1280 pixels 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 1GB RAM
GPRS Yes
WLAN WLAN (Wi-Fi 802.11 a/b/g/n Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth v4.1 with A2DP v5.4 with A2DP, LE  
USB USB (microUSB v2.0) USB Type-C  
NFC No  
GPS Yes Yes + A-GPS support  
Main Camera 10 MP, autofocus, LED flash, Carl Zeiss optics, OIS, 1/3.4" sensor size, PureView technology, geo-tagging, face detection, panorama, Video (1080p@30fps, optical stabilization, stereo sound rec), Single Camera: 50 MP, (wide), PDAF Auxiliary lens, Dual LED Flash   Panorama, Video (1440p@30fps, 1080p@30fps)  
Front Camera 2 MP, LED flash 8 MP, (wide), Dual LED Flash, Video (1080p@30fps)  
OS Microsoft Windows 10 Android 15 OS  
Chipset Mediatek Helio G81 (12 nm)  
Processor Qualcomm MSM8916 Snapdragon 410 Octa-core (2 x 2.0 GHz Cortex-A75 + 6x 1.8 GHz Cortex-A55)  
GPU Mali-G52 MC2  
Sensors Accelerometer, gyro, proximity, compass Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Sound Stereo FM radio, 3.5mm audio jack, MP4/H.264/WMV player, MP3/WAV/eAAC+/WMA player, Games (built-in) 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone  
Colors Various Ink Black, Titanium Grey, Veil White, Mirage Blue  
Battery N/a 5200 mAh   - Fast battery 45W wired, 55 min to 100%  
Misc GPS + A-GPS support, Optional Dual SIM + Nano-SIM, dual stand-by), Wireless charging (Qi-enabled), Active noise cancellation with dedicated mic, Document viewer, video photo/editor, Speakerphone SMS(threaded view), MMS, Email, Push Mail, IM   IP64 dust tight and water resistant (water splashes), Drop resistant up to 1.5m