Oneplus Nord 4 256gb vs Vivo X21

Key Specs

Battery
5500 mAh	3200 mAh
Display
6.74 inches (17.12 cm)	6.28 inches (15.95 cm)
Front Camera
16 MP	12 MP
Processor
Qualcomm Snapdragon 7 Plus Gen 3	Qualcomm Snapdragon 660
RAM
8 GB	6 GB
Rear Camera
50 MP + 8 MP	12 MP + 5 MP

Battery

Capacity
5500 mAh	3200 mAh
Quick Charging
Yes, Super VOOC, 100W: 100 % in 28 minutes	Yes, Fast
Removable
No	No
Type
Li-ion	Li-ion
USB Type-C
Yes	No

Design

Build Material
Back: Metal	-
Colours
Mercurial Silver, Obsidian Midnight, Oasis Green	Black
Height
162.6 mm	154.4 mm
Ruggedness
Dust proof	-
Thickness
8.0 mm	7.3 mm
Waterproof
Yes, Splash proof, IP65	-
Weight
199.5 grams Below	156.2 grams
Width
75 mm	74.7 mm

Display

Aspect Ratio
20.1:9	19:9
Bezel-less display
Yes with punch-hole display	-
Display Type
AMOLED	Super AMOLED
HDR 10 / HDR+ support
Yes, HDR 10+	-
Pixel Density
451 ppi	402 ppi
Refresh Rate
120 Hz	-
Resolution
1240x2772 px (FHD+)	1080x2280 px (FHD+)
Screen Protection
-	Corning Gorilla Glass v3
Screen Size
6.74 inches (17.12 cm)	6.28 inches (15.95 cm)
Screen to Body Ratio (calculated)
89.94 %	84.93 %
Screen to Body Ratio (claimed by the brand)
93.5 %	-
Touch Screen
Yes, Capacitive Touchscreen, Multi-touch	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Camera Features
Fixed Focus	-
Camera Setup
Single	Single
Flash
-	Yes, Screen flash
Resolution
16 MP f/2.4, Wide Angle, Primary Camera(24 mm focal length, 1µm pixel size)	12 MP f/2.0, Primary Camera
Sensor
-	CMOS
Video Recording
1920x1080 @ 30 fps 1280x720 @ 30 fps	-

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General

Brand
OnePlus	vivo
Custom UI
Oxygen OS	Funtouch OS
Launch Date
July 20, 2024 (Official)	May 29, 2018 (Official)
Operating System
Android v14	Android v8.1 (Oreo)

Main Camera

Autofocus
Yes, Phase Detection autofocus, Continuous autofocus	Yes
Camera Features
20 x Digital Zoom Auto Flash Face detection Touch to focus	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
Dual	Dual
Flash
Yes, Dual LED Flash	Yes, LED Flash
Image Resolution
8150 x 6150 Pixels	4000 x 3000 Pixels
OIS
Yes	-
Resolution
50 MP f/1.8, Wide Angle, Primary Camera(25 mm focal length, 1.95" sensor size, LYT 600, 0.8µm pixel size)8 MP f/2.2, Ultra-Wide Angle Camera(4.0" sensor size, 1.12µm pixel size)	12 MP f/1.8, Primary Camera(2.55" sensor size, 1.4µm pixel size)5 MP f/2.4, Depth Camera
Sensor
-	S5K2L9, ISO-CELL
Settings
Exposure compensation, ISO control	Exposure compensation, ISO control
Shooting Modes
Continuous Shooting High Dynamic Range mode (HDR)	Continuous Shooting High Dynamic Range mode (HDR)
Video Recording
3840x2160 @ 30 fps 1920x1080 @ 60 fps 1280x720 @ 240 fps	3840x2160 @ 30 fps
Video Recording Features
Dual Video Recording Slo-motion Ultra Steady Video Bokeh portrait video	-

Multimedia

Audio Jack
USB Type-C	3.5 mm
FM Radio
No	Yes
Loudspeaker
Yes	Yes
Stereo Speakers
Yes	-

Network & Connectivity

Bluetooth
Yes, v5.4	Yes, v5.0
GPS
Yes with A-GPS, Glonass	Yes with A-GPS, Glonass
NFC
Yes	-
Network Support
5G Supported in India, 4G Supported in India, 3G, 2G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SAR Value
Head: 1.18 W/kg, Body: 1.06 W/kg	Head: 1.180 W/kg, Body: 0.573 W/kg
SIM 1
5G Bands: FDD N1 / N3 / N5 / N8 / N28 TDD N40 / N41 / N77 / N78 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 1700(band 4) / 850(band 5) 3G Bands: UMTS 1700 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 850 / 900 MHz GPRS: Available EDGE: Available	4G Bands: TD-LTE 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM 2
5G Bands: FDD N1 / N3 / N5 / N8 / N28 TDD N40 / N41 / N77 / N78 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 1700(band 4) / 850(band 5) 3G Bands: UMTS 1700/2100 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 850 / 900 MHz GPRS: Available EDGE: Available	4G Bands: TD-LTE 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM Size
SIM1: Nano, SIM2: Nano	SIM1: Nano, SIM2: Nano (Hybrid)
SIM Slot(s)
Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
USB 2.0, Mass storage device, USB charging	Mass storage device, USB charging, microUSB 2.0
VoLTE
Yes	Yes
Wi-Fi
Yes, Wi-Fi 6E (802.11 a/b/g/n/ac/ax) 5GHz 6GHz, MIMO	Yes, Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz
Wi-Fi Features
Mobile Hotspot	Mobile Hotspot

Performance

Architecture
64 bit	64 bit
CPU
Octa core (2.8 GHz, Single core, Cortex X4 + 2.6 GHz, Quad core, Cortex A720 + 1.9 GHz, Tri core, Cortex A520)	Octa core (2.2 GHz, Quad core, Kryo 260 + 1.84 GHz, Quad core, Kryo 260)
Chipset
Qualcomm Snapdragon 7 Plus Gen 3	Qualcomm Snapdragon 660
Fabrication
4 nm	-
Graphics
Adreno 732	Adreno 512
RAM type
LPDDR5X	-

Sensors

Applications
-	Facebook, WhatsApp, LINE, Google Duo, Gmail, Amazon, Lazada, Flipkart, Maps, Newspoint, WPS Office, UC Browser
Fingerprint Sensor
Yes	Yes
Fingerprint Sensor Position
On-screen	On-screen
Fingerprint Sensor Type
Optical	Optical
Other Sensors
Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope	Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Storage

Expandable Memory
No	Yes, Up to 256 GB
Internal Memory
256 GB	128 GB
Storage Type
UFS 4.0	-
USB OTG
Yes	Yes
User Available Storage
-	Up to 107 GB