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Xiaomi Redmi 8 vs Xiaomi Redmi 9A

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 / 1700(AWS) / 1900 / 2100   HSDPA 850 / 900 / 1900 / 2100  
4G Network LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300   LTE band 2(1900), 4(1700/2100), 5(850), 12(700), 14(700), 29(700), 30(2300), 66(1700/2100)  
Dimensions 156.7 x 75.4 x 9.4 mm   164.9 x 77 x 9 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)   Dual Sim, Dual Standby (Nano-SIM)  
Weight 188 g   194 g  
Display Type IPS LCD Capacitive Touchscreen, 16M Colors, Multitouch   400 nits typ. brightness (advertised)  
Display Size 720 x 1520 Pixels (~270 PPI)   720 x 1600 Pixels (~269 PPI)  
Protection Corning Gorilla Glass 5  
Memory 32/64GB Built-in, 3/4GB RAM   32GB Built-in, 2GB RAM  
Card slot microSD Card, (supports up to 512GB) (dedicated slot)   microSDXC (dedicated slot)  
GPRS Yes Yes
WLAN Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot   Wi-Fi 802.11 b/g/n, hotspot  
BlueTooth v4.2 with A2DP, LE, apt-X HD   v5.0 with A2DP, LE  
USB 2.0, Type-C 1.0 reversible connector, USB On-The-Go   microUSB 2.0, USB On-The-Go  
NFC No   No  
GPS Yes + A-GPS support & Glonass, BDS, GALILEO   Yes + A-GPS support  
Main Camera Geo-tagging, touch focus, face/smile detection, HDR, panorama, Video ([email protected]/60fps)   Geo-tagging, touch focus, face detection, panorama, HDR, Video ([email protected])  
Front Camera 8 MP, f/2.0, HDR, Video ([email protected])   5 MP, f/2.2, HDR, Video ([email protected])  
OS Android 9.0 (Pie)   Android 10 OS  
Chipset Qualcomm SDM439 Snapdragon 439 (12 nm)   MediaTek Helio G25 (12 nm)  
Processor Octa-core (2 x 1.95 GHz Cortex-A53 + 6 x 1.45 GHz Cortex A53)   2.0 Ghz Octa Core Cortex-A53  
GPU Adreno 505   PowerVR GE8320 (650 MHz)  
Sensors Accelerometer, Compass, Fingerprint (rear mounted), Proximity   Accelerometer, Gyro, 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, DivX/MP4/H.264 player, MP3/WAV/eAAC+ player, Speaker Phone  
Colors Onyx Black, Ruby Red, Sapphire Blue   Granite Gray, Peacook Green, Sky Blue  
Battery - Fast battery charging 18W   - Battery charging 10W  
Misc Active noise cancellation with dedicated mic, Photo/video editor, Document viewer   Active noise cancellation with dedicated mic, Photo/video editor, Document viewer