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Samsung Galaxy W vs Tecno Spark 40

2G Network GSM 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  Best smartphone
3G Network HSDPA 850 / 1900 / 2100 HSDPA 900 / 2100  
4G Network LTE 850 / 1800 / 2100 / 2600 LTE  
Dimensions 191.8 x 99.6 x 8.8 mm 165.6 x 77 x 7.7 mm  
Sim Type Nano-SIM + Nano-SIM  
Weight 245 g N/A  
Display Type TFT capacitive touchscreen, 16M colors IPS LCD Capacitive Touchscreen   120Hz  
Display Size 7.0 inches720 x 1280 pixels(approx 210 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 microSD card (supports up to 64GB) microSDXC  
RAM 1.5GB 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 v4.0 with A2DP v5.4 with A2DP, LE  
USB USB USB Type-C  
NFC No  
GPS Yes Yes + A-GPS support  
Main Camera 8MP, 3264 x 2448 pixels, autofocus, LED flash, geo-tagging, Video 1080p@30fps, 2ndary (2 MP) 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 OS, v4.3 (Jelly Bean) Android 15 OS  
Chipset Mediatek Helio G81 (12 nm)  
Processor 1.2 GHz Quad-core Octa-core (2 x 2.0 GHz Cortex-A75 + 6x 1.8 GHz Cortex-A55)  
GPU Mali-G52 MC2  
Sensors Accelerometer, compass, proximity Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Sound 3.5mm audio jack, MP4/MP4/WMV/H.264/H.263 player, MP3/WAV/eAAC+/AC3/FLAC player, SNS integration, YouTube, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone  
Colors Black, white, red Ink Black, Titanium Grey, Veil White, Mirage Blue  
Battery Talk-Time up to 21 hrs 3200mAh 5200 mAh   - Fast battery 45W wired, 55 min to 100%  
StandBy Time Stand-by time up to
Misc GPS + A-GPS support & GLONASS, Document viewer, Google Search, Maps, Gmail, Voice memo/dial/commands, ANT+ support, Predictive text input, 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