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Samsung Galaxy M51 vs Nokia G21

2G Network SIM1: GSM 850 / 900 / 1800 / 1900SIM2: 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 / 1700(AWS) / 1900 / 2100 - LATAM  
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)   LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300), 41(2500)  
Dimensions 162.6 x 77.5 x 8.5 mm   164.6 x 75.9 x 8.5 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)   Dual Sim, Dual Standby (Nano-SIM)  
Weight 213 g   190 g  
Display Type Super AMOLED Capacitive Touchscreen, 16M Colors, Multitouch   IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch  
Display Size 1080 x 2340 Pixels (~385 PPI)   6.5 Inches   720 x 1600 Pixels (~269 PPI)  
Protection Corning Gorilla Glass 3  
Memory 128GB Built-in, 8GB RAM   64GB Built-in, 4GB RAM  
Card slot microSDXC   microSDXC (dedicated slot)  
GPRS Yes Yes
EDGE Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot   Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot  
BlueTooth v5.0 with A2DP, LE   v5.0 with A2DP, LE  
USB 2.0, Type-C 1.0 reversible connector   USB Type-C 2.0, USB On-The-Go  
NFC No   Yes  
GPS Yes + A-GPS support & Glonass, BDS, GALILEO   Yes + A-GPS support & Glonass, BDS  
Main Camera Phase detection, Geo-tagging, touch focus, face detection, panorama, HDR, Video ([email protected], [email protected])   Triple Camera: 50 MP, (wide), PDAF + 2 MP, (macro) + 2 MP, (depth), LED Flash   Phase detection, Geo-tagging, touch focus, face detection, panorama, HDR, Video (1080p@30fps)  
Front Camera 32 MP, f/2.0, 26mm (wide), 1/2.8   8 MP, (wide), Video (1080p@30fps)  
OS Android 10.0 OS   Android 11 OS  
Chipset Qualcomm SDM730 Snapdragon 730 (8 nm)   Unisoc T606  
Processor Octa-core (2 x 2.2 GHz Kryo 470 Gold + 6 x 1.8 GHz Kryo 470 Silver)   1.6 Ghz Octa Core  
GPU Adreno 618   ARM Mali G57  
Sensors Accelerometer, Compass, Fingerprint (side mounted), Gyro, Proximity   Accelerometer, Fingerprint (side mounted), Proximity  
Browser HTML5   HTML5  
Sound 3.5mm Audio Jack, MP3/WAV/WMA/eAAC+/FLAC player, MP4/WMV/H.265 player, Speaker Phone   3.5mm Audio Jack, Speaker Phone  
Colors Black, Dark Blue   Nordic Blue, Dusk  
Battery - Fast battery charging 25W   (Li-Po Non removable), 5050 mAh   - Fast charging 18W  
Misc Glass front + Gorilla Glass 3), Plastic back + Plastic frame, Active noise cancellation with dedicated mic, Photo/video editor, Document viewer   SMS(threaded view), MMS, Email, Push Mail, IM   Document viewer/editor, Photo/video editor