Home Phone comparison Vivo iQOO Z9x 5G and Realme C51 - Which is better?

Vivo iQOO Z9x 5G vs Realme C51

64 out 100
Vivo iQOO Z9x 5G
VS
44 out 100
Realme C51
Vivo iQOO Z9x 5G
Realme C51

Compared 2 smartphones : Vivo iQOO Z9x 5G Manufactured in April, 2024, with display 6.72 with chipsetQualcomm Snapdragon 6 Gen 1, vs Realme C51, Manufactured in August, 2023with chipsetUnisoc Tiger T612. 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
  • Higher pixel density: 393ppi
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 6000mAh vs 5000mAh
  • Newer Bluetooth version: 5.1 vs 5
Reasons to choose Realme C51
  • Larger display: 6.74in
  • Lighter design: 186g vs 199g

Versions

Available versions and configurations
Memory Options - 4/128 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB
- 12/256 GB		 - 3/64 GB
- 4/64 GB
- 4/128 GB
- 6/256 GB

Review

Key Specs Vivo iQOO Z9x 5G and Realme C51
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.
Customize your score
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
Realme C51

Display

Display quality comparison
Type IPS LCD IPS LCD
Size 6.72 in 6.74 in
Resolution 1080x2408 pixels 720x1600 pixels
Aspect ratio 20:9 20:9
Pixel density 393 ppi 260 ppi
Refresh rate 120 Hz 90 Hz
Adaptive refresh rate Yes No
Max brightness 1000 nits 560 nits
HDR support No No
Touch Sampling Rate 300 Hz 180 Hz
Screen-to-body ratio 86.5 % 85.6 %
Features DCI-P3 n/a

Design & Build

Design and ergonomics comparison
Height 165.7 mm (6.52 in) 167.2 mm (6.58 in)
Width 76 mm (2.99 in) 76.7 mm (3.02 in)
Thickness 7.99 mm (0.31 in) 7.99 mm (0.31 in)
Weight 199 g (7.02 oz) 186 g (6.56 oz)
Water resistance IP64 No
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - Black
- Green		 - Black
- Green
Fingerprint sensor Yes In-Button Yes In-Button
Screen-to-body ratio
Vivo iQOO Z9x 5G
86.5 %
Realme C51
85.6 %

Performance

Testing Vivo iQOO Z9x 5G and Realme C51 In benchmarks
Processor
Chipset Qualcomm Snapdragon 6 Gen 1 Unisoc Tiger T612
Max Frequency 2200 MHz 1800 MHz
CPU Cores 8 (4 + 4) 8 (2 + 6)
Architecture - 4/1.8 (Cortex-A55)
- 4/2.2 (Cortex-A78)		 - 6/1.8 (Cortex-A55)
- 2/1.8 (Cortex-A75)
Process Samsung TSMC
Transistor Size 4 nm 12 nm
Neural Processor Yes n/a
Graphics Adreno 710 Mali-G57 MP1
GPU Cores 256 32
GPU Frequency 676 MHz 614 MHz
FLOPS 346.1 GFLOPS 78.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Vivo iQOO Z9x 5G
933
Realme C51
415
Geekbench 6 (Multi-Core)
Vivo iQOO Z9x 5G
2799
Realme C51
1476
Geekbench 6 (Single-Core)933415
Geekbench 6 (Multi-Core)27991476
Sources: Geekbench v6 [Vivo iQOO Z9x 5G], [Realme C51]
AnTuTu 10
AnTuTu 10
Vivo iQOO Z9x 5G
573302
Realme C51
244837
CPU20292285532
GPU10975523310
Memory12860066023
UX13202569972
NanoReview Score573302244837

Memory

RAM
RAM Size - 8 GB
- 12 GB		 4 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 2133 MHz 1866 MHz
Channels 2 2
Storage
Storage Capacity- 128 GB
- 256 GB		- 64 GB
- 128 GB
Storage TypeUFS 2.2eMMC 5.1
Memory CardMicroSDMicroSD

Software

OS Android 14 Android 13
UI Skin Funtouch OS 14 Realme UI T

Battery

Volume 6000 mAh 5000 mAh
Max Charging Power 44 W 33 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (50% in 26 min) Yes (50% in 28 min)
Full Charge Time 1:11 h 1:12 h

Main camera

Matrix 50 MP 50 MP
Photo resolution n/a 8192x6144 pixels
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording Yes (Up to 30 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 240 fps (720p) 30 fps (480p)
Lenses count Standard: 50 MP
Depth: 2 MP		 Standard: 50 MP
Depth: 0.08 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.8
Focal lengthn/a27 mm
SensorSamsung S5KJN1Samsung S5KJN1
Sensor size1/1.951/2.76
Pixel size0.64 μm0.64 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital

Front camera

Matrix 8 MP 5 MP
Photo resolution n/a 3264x2448 pixels
Aperture f/2.1 f/2.2
Focal length n/a 28 mm
Sensor Samsung S5K4H7 Samsung S5K5E9
Sensor size 1/4 1/5
Pixel size 1.12 μm 1.12 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 720p 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 LE
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 850/900/1800/1900MHz
3G BandsWCDMA B1/B5/B8WCDMA 1/5/8
LTE Bands*LTE (B1/B3/B5/B7/B8/B20/B28/B38/B40/B41)LTE (B1/B3/B5/B8/B38/B40/B41)
LTE categoryn/a7
5G SupportYesNo

Sound

Speakers Stereo Mono
3.5 mm Jack Yes Yes
FM Radio No No
Dolby Atmos n/a No

Other

Class Mid-range Budget
Announced April, 2024 yr July, 2023 yr
Release Date April, 2024 yr August, 2023 yr
Launch Price ($) 165 160
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Accelerometer
- Compass
- Fingerprint sensor
Charger Included Yes 44 W Yes 33 W

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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