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Nokia Lumia 820 vs Tecno Spark 50

2G Network GSM 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 2100  
4G Network LTE  
Available Available 2013
Dimensions 167.8 x 79.2 x 8.2 mm  
Sim Type Micro-SIM Nano-SIM + Nano-SIM  
Weight 160 g (5.64 oz) 210 g  
Display Type AMOLED capacitive touchscreen, 16M colors IPS LCD Capacitive Touchscreen   120Hz  
Display Size 6.78 Inches   720 x 1600 Pixels (~259 PPI)  
Memory 8 GB storage, 1 GB RAM 128GB Built-in, 6GB RAM (+12GB Extended RAM)  
Card slot microSDXC (dedicated slot)  
RAM 1 GB
GPRS Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps
EDGE Class 12
3G Yes
WLAN Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band  
Infrared No
BlueTooth Yes, v3.1 with A2DP, EDR v5.3 with A2DP, LE  
USB Yes, microUSB v2.0 USB Type-C  
NFC No  
GPS Yes, with A-GPS support and GLONASS Yes + A-GPS support  
Main Camera 50 MP, f/1.9, (wide), PDAF, LED Flash   Panorama, Video (1440p@30fps, 1080p@30fps)  
Front Camera 8 MP, f/2.0, (wide)  
OS Microsoft Windows Phone 8 Android 16 OS  
Chipset MediaTek Helio G81  
Processor Qualcomm MSM8960 Snapdragon, Dual-core 1.5 GHz Krait, GPU Adreno 225 Octa-core (2 x 2.0 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU Mali-G57 MC2  
Sensors Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Radio No
Sound Vibration; MP3, WAV ringtones 3.5mm Audio Jack, Speaker  Phone  
Colors Black, Gray, Red, Yellow, White, Blue, Violet Halo Blue, Titanium Grey, Ink Black, Aurora Purple  
Battery 7000 mAh   - 18W wired  
StandBy Time Standard battery, Li-Ion 1650 mAh (BP-5T)
TalkTime Up to 330 h (2G) / Up to 330 h (3G)
Misc SMS(threaded view), MMS, Email, Push Mail, IM   Glass front, plastic frame, plastic back, IP64 dust tight and water resistant (water splashes), Drop resistant up to 1.5m