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Samsung Galaxy M51 vs Xiaomi Redmi Note 8

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 / 1900 / 2100  
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), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)  
Dimensions 162.6 x 77.5 x 8.5 mm   158.3 x 75.3 x 8.4 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)   1080 x 2340 Pixels (~409 PPI)  
Protection Corning Gorilla Glass 3  
Memory 128GB Built-in, 8GB RAM   64GB Built-in, 4GB RAM  
Card slot microSDXC   microSD Card, (supports up to 256GB) (uses SIM 2 slot)  
GPRS Yes 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   2.0, Type-C 1.0 reversible connector, USB On-The-Go  
NFC No   No  
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])   Geo-tagging, Phase detection, touch focus, HDR, Panorama, Video ([email protected], [email protected]/60/120fps, [email protected], gyro-EIS)  
Front Camera 32 MP, f/2.0, 26mm (wide), 1/2.8   13 MP, HDR, panorama, Video ([email protected])  
OS Android 10.0 OS   Android 9.0 (Pie)  
Chipset Qualcomm SDM730 Snapdragon 730 (8 nm)   Qualcomm SDM665 Snapdragon 665 (11 nm)  
Processor Octa-core (2 x 2.2 GHz Kryo 470 Gold + 6 x 1.8 GHz Kryo 470 Silver)   Octa-core (4 x 2.0 GHz Kryo 260 Gold + 4 x 1.8 GHz Kryo 260 Silver)  
GPU Adreno 618   Adreno 610  
Sensors Accelerometer, Compass, Fingerprint (side mounted), Gyro, Proximity   Accelerometer, Compass, Fingerprint (rear mounted), Gyro, 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, XviD/MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Speaker Phone  
Colors Black, Dark Blue   Crystal Green, Crystal Blue  
Battery - Fast battery charging 25W   - Fast battery charging 18W  
Misc Glass front + Gorilla Glass 3), Plastic back + Plastic frame, Active noise cancellation with dedicated mic, Photo/video editor, Document viewer   Active noise cancellation with dedicated mic, Photo/video editor, Document viewer