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Nokia Lumia 820 vs Samsung Galaxy A73

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 / 1900 / 2100  
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500)  
5G Network SA/NSA  
Available Available 2013
Dimensions 163.7 x 76.1 x 7.6 mm  
Sim Type Micro-SIM Hybrid Dual SIM, Dual Standby, (Nano-SIM)  
Weight 160 g (5.64 oz) 181 g  
Display Type AMOLED capacitive touchscreen, 16M colors Super AMOLED Plus Capacitive touchscreen, Multitouch   90Hz  
Display Size 6.7 Inches   1080 x 2400 Pixels (~393 PPI)  
Protection Corning Gorilla Glass  
Memory 8 GB storage, 1 GB RAM 256GB Built-in, 8GB RAM  
Card slot microSD Card, (supports up to 1TB)  
RAM 1 GB
GPRS Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps Yes
EDGE Class 12 Yes
3G Yes
WLAN Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot  
Infrared No
BlueTooth Yes, v3.1 with A2DP, EDR v5.0 with A2DP, LE  
USB Yes, microUSB v2.0 USB Type-C 2.0, USB On-The-Go  
NFC Yes  
GPS Yes, with A-GPS support and GLONASS Yes + A-GPS support & Glonass, BDS, GALILEO, BDS  
Main Camera Quad Camera: 108 MP, f/1.8, (wide), PDAF, OIS + 12 MP, f/2.2, (ultrawide) + 5 MP, f/2.4, (macro) + 5 MP, f/2.4, (depth), LED Flash   panorama, HDR, Video (4K@30fps, 1080p@30/60fps; gyro-EIS)  
Front Camera 32 MP, f/2.2, 26mm (wide), 1/2.8", HDR, Video (4K@30fps, 1080p@30fps)  
OS Microsoft Windows Phone 8 Android 12 OS  
Chipset Qualcomm SM7325 Snapdragon 778G 5G (6 nm)  
Processor Qualcomm MSM8960 Snapdragon, Dual-core 1.5 GHz Krait, GPU Adreno 225 Octa-core (4 x 2.4 GHz Kryo 670 + 4 x 1.8 GHz Kryo 670)  
GPU Adreno 642L  
Sensors Accelerometer, gyro, proximity, compass, Fingerprint (under display, optical)  
Browser HTML5 HTML5  
Radio No
Sound Vibration; MP3, WAV ringtones 3.5mm Audio Jack (Unspecified), Speaker Phone  
Colors Black, Gray, Red, Yellow, White, Blue, Violet Gray, Mint, White  
Battery (Li-Po Non removable), 5000 mAh   - Fast charging 25W  
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   NFC (market dependent), IP67 dust/water resistant (up to 1m for 30 mins), Active noise cancellation with dedicated mic, Photo/video editor, Document viewer