Redmi 13C 5G vs Vivo X21 UD comparison

Show Only Differences Highlight Differences	Redmi 13C 5G	Vivo X21 UD
key specs
Display	6.74-inch	6.28-inch
Processor	MediaTek Dimensity 6100+	Qualcomm Snapdragon 660
Front Camera	5-megapixel	12-megapixel
Rear Camera	50-megapixel	12-megapixel
RAM	4GB, 6GB, 8GB	6GB
Storage	128GB, 256GB	128GB
Battery Capacity	5000mAh	3200mAh
OS	Android 13	Android 8.1
Resolution	720x1600 pixels	1080x2280 pixels
general
Brand	Xiaomi	Vivo
Model	Redmi 13C 5G	X21 UD
Release date	December 6, 2023	March 1, 2018
Launched in India	Yes	-
Form factor	Touchscreen	Touchscreen
Battery capacity (mAh)	5000	3200
Fast charging	Proprietary	-
Dimensions (mm)	-	154.50 x 74.80 x 7.40
Weight (g)	-	156.20
Colours	-	Ruby Red, Aurora White, Black
display
Refresh Rate	90 Hz	-
Resolution Standard	HD+	-
Screen size (inches)	6.74	6.28
Touchscreen	Yes	Yes
Resolution	720x1600 pixels	1080x2280 pixels
hardware
Processor	octa-core	octa-core
Processor make	MediaTek Dimensity 6100+	Qualcomm Snapdragon 660
RAM	4GB, 6GB, 8GB	6GB
Internal storage	128GB, 256GB	128GB
Expandable storage	Yes	-
Expandable storage type	microSD	-
Expandable storage up to (GB)	1000	-
camera
Rear camera	50-megapixel (f/f/1.8)	12-megapixel
No. of Rear Cameras	2	-
Front camera	5-megapixel (f/f/2.2)	12-megapixel
No. of Front Cameras	1	-
Pop-Up Camera	No	-
Rear flash	-	LED
software
Operating system	Android 13	Android 8.1
Skin	MIUI 14	FunTouch 4.0
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards supported	802.11 a/b/g/n/ac	802.11 a/b/g/n/ac
GPS	Yes	Yes
Bluetooth	Yes, v 5.30	Yes, v 5.00
USB Type-C	Yes	-
Headphones	3.5mm	3.5mm
Number of SIMs	2	2
Active 4G on both SIM cards	Yes	-
USB OTG	-	Yes
sim 1
SIM Type	Nano-SIM	Micro-SIM
4G/ LTE	Yes	Yes
5G	Yes	-
GSM/CDMA	-	GSM
3G	-	Yes
sim 2
SIM Type	Nano-SIM	Micro-SIM
4G/ LTE	Yes	Yes
5G	Yes	-
GSM/CDMA	-	GSM
3G	-	Yes
sensors
Face unlock	Yes	-
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	Yes
Accelerometer	Yes	-
Ambient light sensor	Yes	Yes
Proximity sensor	-	Yes
Gyroscope	-	Yes

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