Karbonn X21 Vs Redmi A3x - Comparison

Side By Side Comparison of Karbonn X21 and Redmi A3x. Karbonn X21 vs Redmi A3x comparison to compare Processor, display, RAM, Storage and other features.

This page was last updated on 09, November 2025

Product Name	Karbonn X21	Redmi A3x	- Select Brand - AppleSamsungGoogleXiaomiOnePlusHuaweiLGLeicaPocoiQooHTCLenovoMotorolaNokiaOppoSonyAsusVivoInfocusCoolpadZukHPiBallPanasonicNextbitRealmeNubiaBlackBerryMeizuGioneeAlcatelSpiceVideoconXoloByondAcerCelkonHCLLetvAdcomIntexKarbonnMicromaxSwipeZopoLavaArchosChampion ComputersPhicomm ElephoneSaloraInfinixTuringCromaUmiwiioSymphonySaygusQMobileBluVaioMyPhoneDatawindYamada DenkiQikuOnidaFormeKultOukitelFlyViaanTCLKyoceraFairphoneSikurTonino LamborghiniRio MobileCherry MobileGeneral MobileGeeksPhoneRelianceAirtelKestrelMarshallRinging BellsAqua MobilesmPhoneHonorTp-LinkiBerryIdeaJollaJosh MobileLemonMagiconMaxx MobileMTSPantelPhilipsCreoLYFSimmtronicsTecmax QtecAmzerRazerChilliMitashiSmartronFlashHyveVertuNeffosPepsiPolaroidReachSirinZioxAlienwareRdpiVoomiCatItelVodafoneSansuiLephoneWickedleakYota DevicesZenZTEZyncAlphaMercuryObiAmazonOplusSharpSunstrikeMicrosoftBenqYuKodakAOCAryaBQChampionEvercossJiviMito MobileNexianSilent CircleKenxindadocossLumigonNamotelTecnoElariJioComioM-TechMafeCentricEssentialDetelNuu Mobile10.orOKWUBillionEnergizerMobiistarTamboHomtomYandexOTHOLaplomaSmartisanRoyoleMarqNothingDoogeeHMDCMF - Select Phone -	- Select Brand - AppleSamsungGoogleXiaomiOnePlusHuaweiLGLeicaPocoiQooHTCLenovoMotorolaNokiaOppoSonyAsusVivoInfocusCoolpadZukHPiBallPanasonicNextbitRealmeNubiaBlackBerryMeizuGioneeAlcatelSpiceVideoconXoloByondAcerCelkonHCLLetvAdcomIntexKarbonnMicromaxSwipeZopoLavaArchosChampion ComputersPhicomm ElephoneSaloraInfinixTuringCromaUmiwiioSymphonySaygusQMobileBluVaioMyPhoneDatawindYamada DenkiQikuOnidaFormeKultOukitelFlyViaanTCLKyoceraFairphoneSikurTonino LamborghiniRio MobileCherry MobileGeneral MobileGeeksPhoneRelianceAirtelKestrelMarshallRinging BellsAqua MobilesmPhoneHonorTp-LinkiBerryIdeaJollaJosh MobileLemonMagiconMaxx MobileMTSPantelPhilipsCreoLYFSimmtronicsTecmax QtecAmzerRazerChilliMitashiSmartronFlashHyveVertuNeffosPepsiPolaroidReachSirinZioxAlienwareRdpiVoomiCatItelVodafoneSansuiLephoneWickedleakYota DevicesZenZTEZyncAlphaMercuryObiAmazonOplusSharpSunstrikeMicrosoftBenqYuKodakAOCAryaBQChampionEvercossJiviMito MobileNexianSilent CircleKenxindadocossLumigonNamotelTecnoElariJioComioM-TechMafeCentricEssentialDetelNuu Mobile10.orOKWUBillionEnergizerMobiistarTamboHomtomYandexOTHOLaplomaSmartisanRoyoleMarqNothingDoogeeHMDCMF - Select Phone -
Product Image
Specs score	55.13	60
Price	Rs.6990	Rs.6075
Buy Here	Buy Here	Buy Here
Action
Pros
Cons
Manufacturer	Karbonn	Xiaomi
Released On	November 2021	5th June 2024
Weight (Grams)	160.00	199.00
Colors	Midnight Blue	Aurora Green, Midnight Black, Moonlight White
Dimensions	147.50 x 71.80 x 9.30	168.30 x 76.30 x 8.30
Body Material	Case: Aluminium alloy Back: Plastic
Display
Screen Size	5.45	6.71
Touchscreen	Yes	Yes
Touchscreen Type	IPS LCD	IPS LCD
Resolution	720x1440 pixels	720x1650 pixels
Screen Protection		Corning Gorilla Glass 3
Pixel density	295	268
Screen to body ratio	72.38
Display Features	-Capacitive Touchscreen, Multi-touch -2.5D curved glass screen	- 90 Hz Refresh Rate
Software
Operating System	Android v10.0	Android 14
Custom OS		MIUI 14
Processor
Processor	Octa core, 1.6 GHz, Cortex A55	Octa core
Chipset	Unisoc SC9863	Unisoc T603
GPU	PowerVR GE8322
Memory
RAM	2GB (LPDDR4)	3GB, 4GB (LPDDR4X)
Internal Storage	32GB	64GB, 128GB (eMMC 5.1)
Expandable Storage	Yes (256)	Yes (1024)
Camera
Rear Camera	8-megapixel MP	8 + 0.8 MP
Flash	Yes, LED Flash
Front Camera	5-megapixel	5-megapixel
Front Flash
Connectivity
4G	Yes	Yes
WI-FI	Yes, Wi-Fi 802.11, a/b/g/n	Yes, Wi-Fi 4 (802.11 b/g/n)
Bluetooth	Yes, v4.2	Yes, v 5.4
GPS	Yes, with A-GPS	Yes
NFC	No
USB	microUSB 2.0
Sensors
Fingerprint	Yes (Rear)	Yes (Side)
Accelerometer	Yes	Yes
Proximity	Yes	Yes
Compass/ Magnetometer	Yes	Yes
Proximity	Yes	Yes
Gyroccope	No
Barometer	No
Temperature	No
Battery
Battery Capacity	3000 mAh	5000 mAh
Fast Charging
Buy Here	Buy Here	Buy Here

Karbonn X21 Vs Redmi A3x - Comparison

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