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Samsung Galaxy Ace Duos S6802 vs Tecno Spark 40

2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  Best smartphone
3G Network HSDPA 900 / 2100 HSDPA 900 / 2100  
4G Network LTE  
Available
Dimensions 165.6 x 77 x 7.7 mm  
Sim Type Nano-SIM + Nano-SIM  
Weight 122 g N/A  
Display Type TFT capacitive touchscreen, 16M colors IPS LCD Capacitive Touchscreen   120Hz  
Display Size 320 x 480 pixels, 3.5 inches (~165 ppi pixel density) 6.67 Inches   1080 x 2460 Pixels (~403 PPI)  
Memory 128/256GB Built-in, 4/6/8GB RAM  
Card slot microSDXC  
GPRS Yes
EDGE Yes
3G HSDPA, 7.2 Mbps
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band  
Infrared
BlueTooth Yes, v3.0 with A2DP v5.4 with A2DP, LE  
USB Yes, microUSB v2.0 USB Type-C  
NFC No  
GPS Yes, with A-GPS support Yes + A-GPS support  
Main Camera 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 15 OS  
Chipset Mediatek Helio G81 (12 nm)  
Processor Octa-core (2 x 2.0 GHz Cortex-A75 + 6x 1.8 GHz Cortex-A55)  
GPU Mali-G52 MC2  
Sensors Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML HTML5  
Radio Stereo FM radio with RDS
Sound 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone  
Colors White Ink Black, Titanium Grey, Veil White, Mirage Blue  
Battery Standard battery, Li-Ion 1300 mAh 5200 mAh   - Fast battery 45W wired, 55 min to 100%  
StandBy Time Up to 520 h (2G) / Up to 410 h (3G)
Misc SMS(threaded view), MMS, Email, Push Mail, IM   IP64 dust tight and water resistant (water splashes), Drop resistant up to 1.5m