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Rivo Phantom PZ8 vs Tecno Spark 40

2G Network SIM1: 850 / 900/ 1800/ 1900 SIM2: 850 / 900/ 1800/ 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  Best smartphone
3G Network WCDMA HSDPA 900 / 2100  
4G Network LTE  
Dimensions 137 x 66.3 x 9.8 mm 165.6 x 77 x 7.7 mm  
Sim Type Nano-SIM + Nano-SIM  
Weight 127 g N/A  
Display Type QHD IPS Display IPS LCD Capacitive Touchscreen   120Hz  
Display Size 4.5 Inches, 540 x 960 Pixels, (~248 ppi pixel density) 6.67 Inches   1080 x 2460 Pixels (~403 PPI)  
Memory 4GB built-in 128/256GB Built-in, 4/6/8GB RAM  
Card slot microSD card (supports up to 32GB) microSDXC  
RAM 1GB RAM
GPRS Yes
WLAN WLAN (Wi-Fi 802.11 b/g/n) Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth v5.4 with A2DP, LE  
USB USB USB Type-C  
NFC No  
GPS Yes + A-GPS support  
Main Camera 12 MP, AutoFocus, LED Flash, Video, Single Camera: 50 MP, (wide), PDAF Auxiliary lens, Dual LED Flash   Panorama, Video (1440p@30fps, 1080p@30fps)  
Front Camera 5 MP 8 MP, (wide), Dual LED Flash, Video (1080p@30fps)  
OS Android OS, v4.4 (KitKat) Android 15 OS  
Chipset 200 MSM8212 ch Mediatek Helio G81 (12 nm)  
Processor 1.2GHz Quad Core Cortex-A7, Qualcomm Snapdragon Octa-core (2 x 2.0 GHz Cortex-A75 + 6x 1.8 GHz Cortex-A55)  
GPU GPU: Adreno 302 Mali-G52 MC2  
Sensors Accelerometer, Proximity, Light Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Sound FM Radio, 3.5mm audio jack, MP4/WMV/H.264/H.263 player, MP3/AAC/WMA/WAV player, SNS integration, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone  
Colors Black Ink Black, Titanium Grey, Veil White, Mirage Blue  
Battery 400 as of Sun 22/11/2015. 5200 mAh   - Fast battery 45W wired, 55 min to 100%  
StandBy Time Dual Stand-by
Misc Dual Sim, Dual Stand-by, Google Search, Maps, Gmail, 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