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Xiaomi Mi 4S 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 / 1900 / 2100 HSDPA 900 / 2100  
4G Network LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) LTE  
Dimensions 139.3 x 70.8 x 7.8 mm 165.6 x 77 x 7.7 mm  
Sim Type Nano-SIM + Nano-SIM  
Weight 133 g N/A  
Display Type IPS LCD capacitive touchscreen, 16M colors, MUltitouch, MIUI 7.0 IPS LCD Capacitive Touchscreen   120Hz  
Display Size 5.0 inches, 1080 x 1920 pixels (~441 ppi pixel density) 6.67 Inches   1080 x 2460 Pixels (~403 PPI)  
Memory 64GB built-in 128/256GB Built-in, 4/6/8GB RAM  
Card slot microSDXC  
RAM 3GB 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 v4.2 with A2DP v5.4 with A2DP, LE  
USB USB (Type-C 1.0 reversible connector) USB Type-C  
NFC No  
GPS Yes Yes + A-GPS support  
Main Camera 13 MP, f/2.0, phase detection autofocus, dual-LED (dual tone) flash, Geo-tagging, touch focus, face/smile detection, panorama, HDR, Video (1080p@30fps, 720p@120fps), Single Camera: 50 MP, (wide), PDAF Auxiliary lens, Dual LED Flash   Panorama, Video (1440p@30fps, 1080p@30fps)  
Front Camera 5 MP, f/2.0, 1080p 8 MP, (wide), Dual LED Flash, Video (1080p@30fps)  
OS Android OS Android 15 OS  
Chipset Qualcomm MSM89 Mediatek Helio G81 (12 nm)  
Processor 1.44 GHz Quad-Core Cortex-A53, 1.82 GHz Dua-Core Cortex-A57 Octa-core (2 x 2.0 GHz Cortex-A75 + 6x 1.8 GHz Cortex-A55)  
GPU GPU: Adreno 418 Mali-G52 MC2  
Sensors Accelerometer, gyro, proximity, compass, Fingerprint Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Sound 3.5mm audio jack, XviD/DivX/MP4/H.265 player, MP3/WAV/eAAC+/FLAC player, YouTube, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone  
Colors Black, White, Gold, Pink Ink Black, Titanium Grey, Veil White, Mirage Blue  
Battery 3260 mAh 5200 mAh   - Fast battery 45W wired, 55 min to 100%  
Misc GPS + A-GPS support & GLONASS, BDS, Dual SIM + Micro-SIM / Nano-SIM, dual stand-by), Fast battery charging: 40% in 60 min (Quick Charge 2.0), Active noise cancellation with dedicated mic, Photo/video editor, Document viewer, Google Search, Maps, Gmail, Document viewer, Speakerphone SMS(threaded view), MMS, Email, Push Mail, IM   IP64 dust tight and water resistant (water splashes), Drop resistant up to 1.5m