Home > Smartphone comparison > Vivo Z1x vs Oppo K3 – which one to choose?

Vivo Z1x vs Oppo K3

Here we compared two mid-range smartphones: the 6.38-inch Vivo Z1x (with Qualcomm Snapdragon 712) that was released on September 6, 2019, against the Oppo K3, which is powered by Qualcomm Snapdragon 710 and came out 3 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Vivo Z1x
  • Comes with 735 mAh larger battery capacity: 4500 vs 3765 mAh
  • 21% better performance in AnTuTu Benchmark (228K versus 188K)
  • Has an ultra-wide angle camera lens
  • Slow-motion recording at 480FPS
  • Reverse charging feature

Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Price

Tests and specifications

Comparison table of technical specifications and tests
Phone:
vs

Display

Type Super AMOLED AMOLED
Size 6.38 inches 6.5 inches
Resolution 1080 x 2340 pixels 1080 x 2340 pixels
Aspect ratio 19.5:9 19.5:9
PPI 404 ppi 396 ppi
Refresh rate 60 Hz 60 Hz
HDR support No No
Screen protection Tempered glass Corning Gorilla Glass 5
Screen-to-body ratio 83.3% 84.7%
Display features - Always-On Display - Always-On Display
- DC Dimming
Max. Brightness
506 nits
n/a

Design and build

Height 159.5 mm (6.28 inches) 161.2 mm (6.35 inches)
Width 75.2 mm (2.96 inches) 76 mm (2.99 inches)
Thickness 8.1 mm (0.32 inches) 9.4 mm (0.37 inches)
Weight 189.6 gramm (6.69 oz) 191 gramm (6.74 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors Blue, Purple White, Black, Purple
Fingerprint scanner Yes, in-display Yes, in-display
Screen-to-body ratio
83.3%
Oppo K3 +2%
84.7%

Performance

Tests of Vivo Z1x and Oppo K3 in the benchmarks
SoC
Chipset Qualcomm Snapdragon 712 Qualcomm Snapdragon 710
Max. clock 2300 MHz 2200 MHz
CPU cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6 cores at 1.7 GHz: Kryo 360 Silver (Cortex-A55)
- 2 cores at 2.3 GHz: Kryo 360 Gold (Cortex-A75)
- 6 cores at 1.7 GHz: Kryo 360 Silver (Cortex-A55)
- 2 cores at 2.2 GHz: Kryo 360 Gold (Cortex-A75)
L3 cache 1 MB -
Lithography process 10 nanometers 10 nanometers
Graphics Adreno 616 Adreno 616
GPU clock 550 MHz 500 MHz
FLOPS ~310 GFLOPS ~384 GFLOPS
Memory
RAM size 6 GB 6, 8 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1866 MHz 1866 MHz
Channels 2 2
Storage
Storage size 64, 128 GB 64, 128 GB
Storage type UFS 2.1 UFS 2.1
Memory card No No

Benchmarks

Geekbench 5 (Single-Core)
Vivo Z1x +2%
413
403
Geekbench 5 (Multi-Core)
1535
Oppo K3 +5%
1619
AnTuTu Benchmark 7
Vivo Z1x +21%
187390
155301
AnTuTu Benchmark 8
Vivo Z1x +21%
228249
188644

Software

Operating system Android 9.0 (Can be upgraded to Android 10) Android 9.0 (Can be upgraded to Android 10)
ROM Funtouch 10 Color OS 7

Battery

Specifications
Capacity 4500 mAh 3765 mAh
Charge power 22.5 W 20 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging No No
Reverse charging Yes No
Fast charging Yes (55% in 45 min) Yes, VOOC 3.0 (50% in 30 min)
Full charging time 1:50 hr 1:30 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 16 megapixels
Image resolution 8000 x 6000 4616 x 3464
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording Up to 30FPS Up to 30FPS
1080p video recording Up to 60FPS Up to 120FPS
Slow motion 480 FPS (720p) 240 FPS (720p)
Angle of widest lens 120° -
Lenses 3 (48 MP + 8 MP + 5 MP) 2 (16 MP + 2 MP)
Wide (main) lens - 48 MP
- Aperture: f/1.8
- Pixel size: 0.8 micron
- Sensor: 1/2", Sony IMX582 (Exmor-RS CMOS)
- Phase autofocus
- 16 MP
- Aperture: f/1.8
- Pixel size: 1.12 micron
- Sensor: 1/2.5" (CMOS)
- Phase autofocus
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Focal length: 13 mm
-
Depth lens - 5 MP
- Aperture: f/2.4
- 2 MP
- Aperture: f/2.4
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Selfie camera
Megapixels 32 megapixels 16 megapixels
Image resolution 6528 x 4896 4608 x 3456
Aperture f/2.0 f/2.0
Pixel size 0.8 microns -
Sensor type ISOCELL CMOS CMOS
Sensor size 1/2.8" -
Video resolution 1080p (Full HD) при 30 FPS 1080p (Full HD) при 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5
Bluetooth features LE, A2DP LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo
NFC* No No
Infrared port No No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 12 15
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes No
Dolby Atmos No No

Other

Category Mid-range Mid-range
Announced September 2019 May 2019
Release date September 2019 June 2019
Launch price ~ 212 USD ~ 225 USD
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

These smartphones have a lot in common, but we would recommend the Vivo Z1x. It has a better performance, battery life, and camera.

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