Oppo K13x vs Vivo V7

Key Specs

Battery
-	3000 mAh
Display
-	5.7 inches (14.48 cm)
Front Camera
-	24 MP
Processor
-	Qualcomm Snapdragon 450
RAM
-	4 GB
Rear Camera
-	16 MP

Audio

Audio Jack
3. 5 mm	-
Loudspeaker
Yes	-

Battery

Capacity
6000 mAh	3000 mAh
Quick Charging
Yes, 45W Fast charging	-
Removable
No	No
Type
Li-ion	Li-ion
USB Type-C
-	No

Camera

Flash
Yes, LED	-
Front Camera
8 MP	-
Rear Camera
50 MP + 2 MP	-
Video Recording
1080p @ 60 fps FHD, 720p @ 30 fps HD	-

Design

Build Material
-	Back: Plastic
Colours
Midnight Violet, Sunset Peach	Matte Black, Champagne Gold, Energetic Blue
Height
-	149.3 mm
Ruggedness
Dust Proof	-
Thickness
-	7.9 mm
Water Resistance
1.18 m upto 1.05 min	-
Weight
194 gram	139 grams
Width
-	72.8 mm

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Dimensions

Dimensions
76.2 x 165.7 x 7.9 mm	-
Height
165.7 mm	-
Thickness
7.9 mm	-
Width
76.2 mm	-

Display

Aspect Ratio
20:9	18:9
Bezel-less display
-	Yes
Brightness
850 nits	-
Display Type
LCD Screen	IPS LCD
Pixel Density
264 PPI	282 ppi
Refresh Rate
120 Hz	-
Resolution
720 x 1604 pixels	720x1440 px (HD+)
Screen Protection
-	Corning Gorilla Glass v4, Scratch-resistant glass
Screen Size
6.67 inches	5.7 inches (14.48 cm)
Screen to Body Ratio (calculated)
-	77.14 %
Screen to Body Ratio (claimed by the brand)
84.9%	-
Touch Screen
-	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Flash
-	Yes, Soft light flash
Resolution
-	24 MP f/2.0, Primary Camera

General

Brand
Oppo	vivo
Custom UI
ColorOS 15	Funtouch OS
Launch Date
June 23, 2025	November 24, 2017
Model
K13x	-
Operating System
Android v15	Android v7.1 (Nougat)

Main Camera

Autofocus
-	Yes, Phase Detection autofocus
Camera Features
-	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
-	Single
Flash
-	Yes, LED Flash
Image Resolution
-	4616 x 3464 Pixels
Resolution
-	16 MP f/2.0, Primary Camera(3" sensor size, 1µm pixel size)
Settings
-	Exposure compensation, ISO control
Shooting Modes
-	Continuous Shooting High Dynamic Range mode (HDR)
Video Recording
-	1920x1080 @ 30 fps

Multimedia

Audio Jack
-	3.5 mm
FM Radio
-	Yes
Loudspeaker
-	Yes

Network & Connectivity

Bluetooth
Yes, v5.4	Yes, v4.2
GPS
Yes, with BeiDou: B1I; GPS: L1; GLONASS: G1; Galileo: E1; QZSS: L1	Yes with A-GPS, Glonass
NFC
-	No
Network Support
4G.5G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SAR Value
-	Head: 0.935 W/kg, Body: 0.665 W/kg
SIM 1
5G Bands: n1/n3/n5/n8/n28B/n40/n41/n77/n78	4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM 2
5G Bands: n1/n3/n5/n8/n28B/n40/n41/n77/n78	4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM Size
Nano+Nano SIM	SIM1: Nano, SIM2: Nano
SIM Slot(s)
Dual Sim, GSM+GSM (Hybrid Slot)	Dual SIM, GSM+GSM
USB Connectivity
-	Mass storage device, USB charging, microUSB 2.0
VoLTE
Yes	Yes
Wi-Fi
Yes, with wifi-hotspot	Yes, Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz
Wi-Fi Features
-	Mobile Hotspot

Performance

Architecture
-	64 bit
CPU
-	Octa core, 1.8 GHz, Cortex A53
Chipset
-	Qualcomm Snapdragon 450
Graphics
-	Adreno 506
Processor
Mediatek Dimensity 6300	-
RAM
4 GB /6 GB / 8GB	4 GB
RAM Type
LPDDR4X	-

Sensors

Applications
-	WPS, UC Browser, Amazon, Saavn, UC News, Flipkart
Fingerprint Sensor
Yes, Side	Yes
Fingerprint Sensor Position
-	Rear
Other Sensors
Accelerometer, Gyro, Proximity, Compass	Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Storage

Expandable Memory
up to 1TB	Yes, Up to 256 GB
Internal Memory
128 GB	32 GB
Storage Type
UFS 2.2	-
USB OTG
-	Yes
User Available Storage
-	Up to 21.7 GB