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Xiaomi Redmi 9 vs Nokia C21

2G Network SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900   SIM1: GSM 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100   HSDPA 850 / 900 / 2100  
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 40(2300), 41(2500)   LTE  
Dimensions 163.3 x 77 x 9.1 mm   169.9 x 77.9 x 8.8 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)   Dual Sim, Dual Standby (Nano-SIM)  
Weight 198 g   195 g  
Display Type 400 nits typ. brightness (advertised)   IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch  
Display Size 1080 x 2340 Pixels (~395 PPI)   6.5 Inches   720 x 1600 Pixels (~269 PPI)  
Protection Corning Gorilla Glass 3  
Memory 64GB Built-in, 4GB RAM   32GB Built-in, 2GB RAM  
Card slot microSDXC (dedicated slot)   microSDXC (dedicated slot)  
GPRS Yes Yes
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot   Wi-Fi 802.11 b/g/n, hotspot  
BlueTooth v5.0 with A2DP, LE   v4.2 with A2DP  
USB 2.0, Type-C 1.0 reversible connector, USB On-The-Go   microUSB 2.0  
NFC Yes   No  
GPS Yes + A-GPS support & Glonass, BDS, GALILEO, BDS   Yes + A-GPS support  
Main Camera Geo-tagging, Phase detection, touch focus, HDR, Panorama, Video ([email protected])   8 MP, LED Flash   HDR, touch focus, Video (720p@30fps)  
Front Camera 8 MP, HDR, Video ([email protected])   5 MP, LED Flash, Video 720p  
OS Android 10 OS   Android 11.0 (Go edition)  
Chipset Mediatek Helio G80 (12 nm)   Unisoc SC9863A (28nm)  
Processor Octa-core (2 x 2.0 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)   Octa-core (4 x 1.6 GHz Cortex-A55 + 4 x 1.2 GHz Cortex-A55)  
GPU Mali-G52 MC2   IMG8322  
Sensors Accelerometer, Fingerprint (rear mounted), Gyro, Proximity   Accelerometer, Fingerprint (rear mounted), Proximity  
Browser HTML5   HTML5  
Sound 3.5mm Audio Jack, XviD/MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Speaker Phone   3.5mm Audio Jack, MP4/H.264 player, MP3/WAV/eAAC+/WMA player, Speaker Phone  
Colors Carbon Gray, Sunset Purple, Ocean Green   Dark Blue, Warm Gray  
Battery - Fast battery charging 18W   (Li-ion Removable), 3000 mAh  
Misc Glass front + Gorilla Glass 5), 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