Home Phone comparison Vivo iQOO Z9x 5G and Samsung Galaxy M31 - Which is better?

Vivo iQOO Z9x 5G vs Samsung Galaxy M31

64 out 100
Vivo iQOO Z9x 5G
VS
46 out 100
Samsung Galaxy M31
Vivo iQOO Z9x 5G
Samsung Galaxy M31

Compared 2 smartphones : Vivo iQOO Z9x 5G Manufactured in April, 2024, with display 6.72 with chipsetQualcomm Snapdragon 6 Gen 1, vs Samsung Galaxy M31, Manufactured in March, 2020 with chipsetSamsung Exynos 7 Octa 9611. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Vivo iQOO Z9x 5G
  • Larger display: 6.72in
  • Higher refresh rate: 120Hz
  • Newer Bluetooth version: 5.1 vs 5
  • Includes charger
Reasons to choose Samsung Galaxy M31
  • Higher pixel density: 403ppi
  • Lighter design: 191g vs 199g
  • Supports Dolby Atmos

Versions

Available versions and configurations
Memory Options - 4/128 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB
- 12/256 GB		 - 6/64 GB
- 6/128 GB
- 8/128 GB

Review

Key Specs Vivo iQOO Z9x 5G and Samsung Galaxy M31
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Vivo iQOO Z9x 5G
vs
Samsung Galaxy M31

Display

Display quality comparison
Type IPS LCD Super AMOLED
Size 6.72 in 6.4 in
Resolution 1080x2408 pixels 1080x2340 pixels
Aspect ratio 20:9 19.5:9
Pixel density 393 ppi 403 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate Yes No
Max brightness 1000 nits 600 nits
HDR support No Yes HDR10
Touch Sampling Rate 300 Hz n/a
Screen-to-body ratio 86.5 % 84.1 %
Features DCI-P3 Always-On Display
Display test
Peak brightness (auto)
Vivo iQOO Z9x 5G
n/a
Samsung Galaxy M31
614 nits
sRGB gamutn/a142 %
PWM (Flicker)n/a208 Hz
Response timen/a8.5 ms
Contrastn/a∞ Infinite
Sources: NotebookCheck [Samsung Galaxy M31]

Design & Build

Design and ergonomics comparison
Height 165.7 mm (6.52 in) 159.2 mm (6.27 in)
Width 76 mm (2.99 in) 75.1 mm (2.96 in)
Thickness 7.99 mm (0.31 in) 8.9 mm (0.35 in)
Weight 199 g (7.02 oz) 191 g (6.74 oz)
Water resistance IP64 No
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - Black
- Green		 - Black
- Blue
- Red
Fingerprint sensor Yes In-Button Yes rear
Screen-to-body ratio
Vivo iQOO Z9x 5G
86.5 %
Samsung Galaxy M31
84.1 %

Performance

Testing Vivo iQOO Z9x 5G and Samsung Galaxy M31 In benchmarks
Processor
Chipset Qualcomm Snapdragon 6 Gen 1 Samsung Exynos 7 Octa 9611
Max Frequency 2200 MHz 2300 MHz
CPU Cores 8 (4 + 4) 8 (4 + 4)
Architecture - 4/1.8 (Cortex-A55)
- 4/2.2 (Cortex-A78)		 - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)
Process Samsung Samsung
Transistor Size 4 nm 10 nm
Neural Processor Yes Yes
Graphics Adreno 710 Mali-G72 MP3
GPU Cores 256 54
GPU Frequency 676 MHz 850 MHz
FLOPS 346.1 GFLOPS 113.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Vivo iQOO Z9x 5G
933
Samsung Galaxy M31
505
Geekbench 6 (Multi-Core)
Vivo iQOO Z9x 5G
2799
Samsung Galaxy M31
1547
Geekbench 6 (Single-Core)933505
Geekbench 6 (Multi-Core)27991547
Sources: Geekbench v6 [Vivo iQOO Z9x 5G]
AnTuTu 10
AnTuTu 10
Vivo iQOO Z9x 5G
573302
Samsung Galaxy M31
257150
CPU20292273640
GPU10975545350
Memory12860062516
UX13202575644
NanoReview Score573302257150
3DMark Wild Life
3DMark Wild Life
Vivo iQOO Z9x 5G
n/a
Samsung Galaxy M31
820
Max Surface Temp.n/a45.2 °C
Stabilityn/a74 %
Graphics Testn/a4 fps
Graphics Scoren/a820
Sources: 3DMark [Samsung Galaxy M31]

Memory

RAM
RAM Size - 8 GB
- 12 GB		 6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 2133 MHz 1866 MHz
Channels 2 2
Storage
Storage Capacity- 128 GB
- 256 GB		128 GB
Storage TypeUFS 2.2UFS 2.1
Memory CardMicroSDMicroSD

Software

OS Android 14 Android 10 (Upgradeable to Android 12)
OS Size n/a 15 GB
UI Skin Funtouch OS 14 One UI 4.1

Battery

Volume 6000 mAh 6000 mAh
Max Charging Power 44 W 15 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (50% in 26 min) Yes Samsung Adaptive Fast Charge (45% in 60 min)
Full Charge Time 1:11 h 2:25 h
Battery Life Test
Battery Life
Vivo iQOO Z9x 5G
n/a
Samsung Galaxy M31
24:27
Web Browsingn/a10:13 h
Video Playbackn/a14:16 h
Gamesn/a05:44 h
Standby Moden/a117 h

Main camera

Matrix 50 MP 64 MP
Photo resolution n/a 9248x6920 pixels
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 240 fps (720p) 240 fps (720p)
Wide-angle lens n/a 123 °
Lenses count Standard: 50 MP
Depth: 2 MP		 Standard: 64 MP
Ultra-wide: 8 MP
Macro: 5 MP
Depth: 5 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP64 MP
Aperturef/1.8f/1.8
Focal lengthn/a26 mm
SensorSamsung S5KJN1ISOCELL Bright GW1
Sensor size1/1.951/1.72
Pixel size0.64 μm0.8 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrixn/a8 MP
Aperturen/af/2.2
Focal lengthn/a12 mm
Sensor sizen/a1/4.0
Pixel sizen/a1.12 μm
Stabilizationn/aDigital

Front camera

Matrix 8 MP 32 MP
Photo resolution n/a 6528x4896 pixels
Aperture f/2.1 f/2.0
Focal length n/a 26 mm
Sensor Samsung S5K4H7 Sony IMX616
Sensor size 1/4 1/2.8
Pixel size 1.12 μm 0.8 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/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 5.1 5
Bluetooth features LE PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, 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
DisplayPort No n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Varies by region Varies by region
Infrared Port No No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850/900/1800 MHzGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G BandsWCDMA B1/B5/B8HSDPA 850 / 900 / 1900 / 2100
LTE Bands*LTE (B1/B3/B5/B7/B8/B20/B28/B38/B40/B41)LTE (B1/B3/B5/B8/B20/B40/B41)
LTE categoryn/a12
5G SupportYesNo

Sound

Speakers Stereo Mono
3.5 mm Jack Yes Yes
FM Radio No Yes
Dolby Atmos n/a Yes
Speaker Test
Max Volume
Vivo iQOO Z9x 5G
n/a
Samsung Galaxy M31
81.7 dB

Other

Class Mid-range Mid-range
Announced April, 2024 yr February, 2020 yr
Release Date April, 2024 yr March, 2020 yr
Launch Price ($) 165 220
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 44 W n/a

Note

Vivo iQOO Z9x 5G:

Chinese version of Vivo T3x.

* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Vivo iQOO Z9x 5G the clear winner in this comparison.

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