Realme Narzo 100x 5G vs Vivo U3 comparison

Show Only Differences Highlight Differences	Realme Narzo 100x 5G	Vivo U3
key specs
Display	6.80-inch	6.53-inch
Front Camera	8-megapixel	16-megapixel
Rear Camera	50-megapixel	16-megapixel + 8-megapixel + 2-megapixel
Battery Capacity	8000mAh	5000mAh
OS	Android 16	Android 9 Pie
Resolution	720x1570 pixels	1080x2340 pixels
Processor	-	Qualcomm Snapdragon 675
RAM	-	4GB
Storage	-	128GB
general
Brand	Realme	Vivo
Model	Narzo 100x 5G	U3
Release date	July 15, 2026	October 21, 2019
AI Enabled	Yes	-
Launched in India	Yes	No
Dimensions (mm)	166.40 x 78.20 x 8.80	162.15 x 76.47 x 8.89
Weight (g)	224.00	193.00
IP rating	IP65	-
Battery capacity (mAh)	8000	5000
Colours	Midnight Black, Flash Orange	Spar Blue, Agate Black, Onion Blue
Form factor	-	Touchscreen
Removable battery	-	No
Fast charging	-	Proprietary
Wireless charging	-	No
display
Refresh Rate	144 Hz	-
Resolution Standard	HD+	-
Screen size (inches)	6.80	6.53
Touchscreen	Yes	Yes
Resolution	720x1570 pixels	1080x2340 pixels
Aspect ratio	-	19.5:9
Pixels per inch (PPI)	-	394
camera
Rear camera	50-megapixel	16-megapixel (f/1.78) + 8-megapixel (f/2.2) + 2-megapixel (f/2.4)
No. of Rear Cameras	2	-
Front camera	8-megapixel	16-megapixel (f/2.0)
No. of Front Cameras	1	-
Rear autofocus	-	Yes
Rear flash	-	Yes
software
Operating system	Android 16	Android 9 Pie
Skin	Realme UI 7.0	Funtouch OS 9
connectivity
Wi-Fi	Yes	Yes
GPS	Yes	Yes
Bluetooth	Yes	Yes
USB Type-C	Yes	-
Number of SIMs	2	2
Active 4G on both SIM cards	Yes	Yes
Micro-USB	-	Yes
Headphones	-	3.5mm
sensors
Face unlock	Yes	Yes
Fingerprint sensor	Yes	Yes
Compass/ Magnetometer	Yes	-
Proximity sensor	Yes	Yes
Accelerometer	Yes	Yes
Ambient light sensor	Yes	Yes
hardware
Processor	-	octa-core
Processor make	-	Qualcomm Snapdragon 675
RAM	-	4GB
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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