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Tecno Spark 40 vs Vivo Y19s Pro

2G Network SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  Best smartphone SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 900 / 2100   HSDPA 850 / 900 / 2100  
4G Network LTE   LTE band 1(2100), 5(850), 8(900), 40(2300)  
Dimensions 165.6 x 77 x 7.7 mm   165.75 × 76.10 × 8.10 mm  
Sim Type Nano-SIM + Nano-SIM   Nano-SIM + Nano-SIM  
Weight N/A   200 g  
Display Type IPS LCD Capacitive Touchscreen   120Hz   IPS LCD Capacitive Touchscreen   90Hz, 1000 nits (HBM)  
Display Size 6.67 Inches   1080 x 2460 Pixels (~403 PPI)   6.68 Inches   720 x 1608 Pixels (~264 PPI)  
Memory 128/256GB Built-in, 4/6/8GB RAM   128GB Built-in, 6GB RAM (+6GB Extended RAM)  
Card slot microSDXC   microSD Card, (supports up to 1TB)  
GPRS Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band   Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth v5.4 with A2DP, LE   v5.2 with A2DP, LE  
USB USB Type-C   USB Type-C 2.0, OTG  
NFC No   No  
GPS Yes + A-GPS support   Yes + A-GPS support & Glonass, BDS, GALILEO, QZSS  
Main Camera Single Camera: 50 MP, (wide), PDAF Auxiliary lens, Dual LED Flash   Panorama, Video (1440p@30fps, 1080p@30fps)   Dual Camera: 50 MP, f/1.8 + 0.08 MP, LED Flash   Panorama, Video (1080p@30fps)  
Front Camera 8 MP, (wide), Dual LED Flash, Video (1080p@30fps)   5 MP, f/2.2  
OS Android 15 OS   Android 15 OS  
Chipset Mediatek Helio G81 (12 nm)   Unisoc Tiger T612 (12 nm)  
Processor Octa-core (2 x 2.0 GHz Cortex-A75 + 6x 1.8 GHz Cortex-A55)   Octa-core (2 x 1.8 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU Mali-G52 MC2   Mali-G57  
Sensors Accelerometer, Compass, Fingerprint (side-mounted), Proximity   Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5   HTML5  
Sound 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone   3.5mm Audio Jack, Dual Speaker  
Colors Ink Black, Titanium Grey, Veil White, Mirage Blue   Pearl Silver, Glacier Blue, Glossy Black  
Battery 5200 mAh   - Fast battery 45W wired, 55 min to 100%   Li-ion 6000 mAh   - Fast charging 44W  
Misc SMS(threaded view), MMS, Email, Push Mail, IM   IP64 dust tight and water resistant (water splashes), Drop resistant up to 1.5m   SMS(threaded view), MMS, Email, Push Mail, IM   IP64 dust tight and water resistant (water splashes) MIL-STD-810H compliant*, Document viewer, Photo/video editor