Vivo X Fold 3 vs Vivo X21 UD comparison

Show Only Differences Highlight Differences	Vivo X Fold 3	Vivo X21 UD
key specs
Display (Primary)	8.03-inch	-
Processor	Snapdragon 8 Gen 2	Qualcomm Snapdragon 660
Front Camera	32-megapixel + 32-megapixel	12-megapixel
Rear Camera	50-megapixel + 50-megapixel + 50-megapixel	12-megapixel
RAM	12GB	6GB
Storage	256GB	128GB
Battery Capacity	5500mAh	3200mAh
OS	Android 14	Android 8.1
Resolution	2200x2480 pixels	1080x2280 pixels
Display	-	6.28-inch
general
Brand	Vivo	Vivo
Model	X Fold 3	X21 UD
Release date	March 26, 2024	March 1, 2018
Launched in India	No	-
Form factor	Foldable	Touchscreen
Dimensions (mm)	159.96 x 142.69 x 4.65	154.50 x 74.80 x 7.40
Weight (g)	219.00	156.20
IP rating	IPX4	-
Battery capacity (mAh)	5500	3200
Fast charging	Proprietary	-
Colours	Feather White, Thin Wing Black	Ruby Red, Aurora White, Black
display
Refresh Rate	120 Hz	-
Screen size (inches)	8.03	6.28
Touchscreen	Yes	Yes
Resolution	2200x2480 pixels	1080x2280 pixels
second display
Screen size (inches)	6.53	-
Touchscreen	Yes	-
Resolution	1172x2748 pixels	-
hardware
Processor	octa-core	octa-core
Processor make	Snapdragon 8 Gen 2	Qualcomm Snapdragon 660
RAM	12GB	6GB
Internal storage	256GB	128GB
camera
Rear camera	50-megapixel + 50-megapixel + 50-megapixel	12-megapixel
No. of Rear Cameras	3	-
Front camera	32-megapixel + 32-megapixel	12-megapixel
No. of Front Cameras	2	-
Rear flash	-	LED
software
Operating system	Android 14	Android 8.1
Skin	OriginOS 4	FunTouch 4.0
connectivity
Wi-Fi	Yes	Yes
Wi-Fi standards supported	802.11 a/b/g/n/ac/ax	802.11 a/b/g/n/ac
Bluetooth	Yes	Yes, v 5.00
NFC	Yes	-
USB OTG	Yes	Yes
USB Type-C	Yes	-
Number of SIMs	2	2
GPS	-	Yes
Headphones	-	3.5mm
sim 1
SIM Type	Nano-SIM	Micro-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes
sensors
3D face recognition	Yes	-
Fingerprint sensor	Yes	-
Compass/ Magnetometer	Yes	Yes
Accelerometer	Yes	-
Ambient light sensor	Yes	Yes
Gyroscope	Yes	Yes
Proximity sensor	-	Yes
sim 2
SIM Type	-	Micro-SIM
GSM/CDMA	-	GSM
3G	-	Yes
4G/ LTE	-	Yes

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