Realme Narzo 100x 5G vs Vivo V21 comparison

Show Only Differences Highlight Differences	Realme Narzo 100x 5G	Vivo V21
key specs
Display	6.80-inch	6.44-inch
Front Camera	8-megapixel	44-megapixel
Rear Camera	50-megapixel	64-megapixel + 8-megapixel + 2-megapixel
Battery Capacity	8000mAh	4000mAh
OS	Android 16	Android 11
Resolution	720x1570 pixels	1080x2404 pixels
Processor	-	MediaTek Dimensity 800U
RAM	-	8GB
Storage	-	128GB
general
Brand	Realme	Vivo
Model	Narzo 100x 5G	V21
Release date	July 15, 2026	April 27, 2021
AI Enabled	Yes	-
Launched in India	Yes	No
Dimensions (mm)	166.40 x 78.20 x 8.80	159.68 x 73.90 x 7.29
Weight (g)	224.00	176.00
IP rating	IP65	-
Battery capacity (mAh)	8000	4000
Colours	Midnight Black, Flash Orange	Arctic White, Dusk Blue, Sunset Dazzle
Form factor	-	Touchscreen
Fast charging	-	Proprietary
display
Refresh Rate	144 Hz	-
Resolution Standard	HD+	-
Screen size (inches)	6.80	6.44
Touchscreen	Yes	Yes
Resolution	720x1570 pixels	1080x2404 pixels
Aspect ratio	-	20:9
camera
Rear camera	50-megapixel	64-megapixel (f/1.79) + 8-megapixel (f/2.2) + 2-megapixel (f/2.4)
No. of Rear Cameras	2	3
Front camera	8-megapixel	44-megapixel (f/2.0)
No. of Front Cameras	1	1
Rear autofocus	-	Yes
Rear flash	-	Yes
Front flash	-	Yes
software
Operating system	Android 16	Android 11
Skin	Realme UI 7.0	Funtouch OS 11.1
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes	Yes, v 5.10
USB Type-C	Yes	Yes
Number of SIMs	2	2
Active 4G on both SIM cards	Yes	-
USB OTG	-	Yes
sensors
Face unlock	Yes	-
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	Yes
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
In-Display Fingerprint Sensor	-	Yes
Gyroscope	-	Yes
hardware
Processor	-	octa-core
Processor make	-	MediaTek Dimensity 800U
RAM	-	8GB
Internal storage	-	128GB
Expandable storage	-	Yes
Expandable storage type	-	microSD
sim 1
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
sim 2
SIM Type	-	Nano-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes

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