Home Phone comparison Vivo iQOO Z9 5G and Xiaomi Redmi 8 - Which is better?

Vivo iQOO Z9 5G vs Xiaomi Redmi 8

69 out 100
Vivo iQOO Z9 5G
VS
38 out 100
Xiaomi Redmi 8
Vivo iQOO Z9 5G
Xiaomi Redmi 8

Compared 2 smartphones : Vivo iQOO Z9 5G Manufactured in March, 2024, with display 6.78 with chipsetQualcomm Snapdragon 7 Gen 3, vs Xiaomi Redmi 8, Manufactured in October, 2019 with chipsetQualcomm Snapdragon 439. 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 Z9 5G
  • Larger display: 6.78in
  • Higher pixel density: 452ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 6000mAh vs 5000mAh
  • Newer Bluetooth version: 5.4 vs 4.2
  • Includes charger
Reasons to choose Xiaomi Redmi 8
  • Lighter design: 188g vs 194.6g

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 12/256 GB		 - 3/32 GB
- 4/64 GB

Review

Key Specs Vivo iQOO Z9 5G and Xiaomi Redmi 8
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 Z9 5G
vs
Xiaomi Redmi 8

Display

Display quality comparison
Type AMOLED IPS LCD
Size 6.78 in 6.22 in
Resolution 1260x2800 pixels 720x1520 pixels
Aspect ratio 20:9 19:9
Pixel density 452 ppi 270 ppi
Refresh rate 144 Hz 60 Hz
Adaptive refresh rate Yes No
Max brightness 1200 nits 400 nits
HDR support Yes HDR10+ No
Touch Sampling Rate 300 Hz n/a
Screen-to-body ratio 89.3 % 81.8 %
Features - DCI-P3
- Always-On Display
- DC dimming		 n/a
Display test
Peak brightness (auto)
Vivo iQOO Z9 5G
n/a
Xiaomi Redmi 8
512 nits
sRGB gamutn/a95.7 %
Response timen/a55.2 ms
Contrastn/a2308:1
Sources: NotebookCheck [Xiaomi Redmi 8]

Design & Build

Design and ergonomics comparison
Height 163.72 mm (6.45 in) 156.5 mm (6.16 in)
Width 75.88 mm (2.99 in) 75.4 mm (2.97 in)
Thickness 7.98 mm (0.31 in) 9.4 mm (0.37 in)
Weight 194.6 g (6.86 oz) 188 g (6.63 oz)
Water resistance IP64 Yes
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - Black
- Green		 - Black
- Blue
- Red
Fingerprint sensor Yes In-Display Yes rear
Screen-to-body ratio
Vivo iQOO Z9 5G
89.3 %
Xiaomi Redmi 8
81.8 %

Performance

Testing Vivo iQOO Z9 5G and Xiaomi Redmi 8 In benchmarks
Processor
Chipset Qualcomm Snapdragon 7 Gen 3 Qualcomm Snapdragon 439
Max Frequency 2630 MHz 2000 MHz
CPU Cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6/2 (Cortex-A510)
- 2/2.8 (Cortex-A715)		 - 4/1.45 (Cortex-A53)
- 4/2 (Cortex-A53)
Process TSMC Samsung
Transistor Size 4 nm 12 nm
Neural Processor MediaTek APU 650 Hexagon 536
Graphics Mali-G610 MP4 Adreno 505
GPU Cores 256 48
GPU Frequency 1130 MHz 450 MHz
FLOPS 578.6 GFLOPS 43.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Vivo iQOO Z9 5G
1191
Xiaomi Redmi 8
476
Geekbench 6 (Multi-Core)
Vivo iQOO Z9 5G
3209
Xiaomi Redmi 8
1521
Geekbench 6 (Single-Core)1191476
Geekbench 6 (Multi-Core)32091521
Geekbench Compute (GPU)4184n/a
Sources: Geekbench v6 [Vivo iQOO Z9 5G]
AnTuTu 10
AnTuTu 10
Vivo iQOO Z9 5G
712380
Xiaomi Redmi 8
151070
CPU23908655305
GPU17567715306
Memory11825850584
UX17935929875
NanoReview Score712380151070

Memory

RAM
RAM Size - 8 GB
- 12 GB		 - 3 GB
- 4 GB
Memory Type LPDDR4X LPDDR3
Memory Frequency 2133 MHz 933 MHz
Channels 2 1
Storage
Storage Capacity- 128 GB
- 256 GB		- 32 GB
- 64 GB
Storage TypeUFS 2.2eMMC 5.1
Memory CardNoMicroSD

Software

OS Android 14 Android 9.0 (Upgradeable to Android 10)
OS Size n/a 15 GB
UI Skin Funtouch OS 14 MIUI 12.5

Battery

Volume 6000 mAh 5000 mAh
Max Charging Power 80 W 18 W
Battery Type Silicon Carbon (Si/C) Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (50% in 17 min) Yes Quick Charge 3.0 (50% in 85 min)
Full Charge Time 0:39 h 3:20 h
Battery Life Test
Battery Life
Vivo iQOO Z9 5G
n/a
Xiaomi Redmi 8
20:29
Web Browsingn/a08:09 h
Video Playbackn/a10:10 h
Gamesn/a04:49 h
Standby Moden/a110 h

Main camera

Matrix 50 MP 12 MP
Photo resolution 8192x6144 pixels 4000x3000 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 n/a 120 fps (720p)
Wide-angle lens n/a 113 °
Lenses count Standard: 50 MP
Depth: 2 MP		 Standard: 12 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP12 MP
Aperturef/1.8f/1.8
Focal length26 mmn/a
SensorSony IMX882Sony IMX363
Sensor size1/21/2.55
Pixel size0.7 μm1.4 μm
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationDigitalDigital

Front camera

Matrix 16 MP 8 MP
Photo resolution n/a 3648x2190 pixels
Aperture f/2.0 f/2.0
Sensor Samsung S5K3P9 CMOS
Sensor size 1/3.1 1/4.0
Pixel size 1 μm 1.12 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Wi-Fi 4 (802.11 a/b/g/n)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.4 4.2
Bluetooth features LE 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
- USB-Host mode
- OTG
DisplayPort No n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
NFC* Varies by region No
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotYesNo
2G BandsGSM 850/900/1800 MHzGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G BandsWCDMA B1/B5/B8HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
LTE Bands*LTE (B1/B3/B5/B8/B28/B28B)LTE (B1/B2/B3/B4(1700/B5/B7/B8/B20/B38/B40/B2100))
LTE categoryn/a4
5G SupportYesNo

Sound

Speakers Stereo Mono
3.5 mm Jack No Yes
FM Radio No Yes
Dolby Atmos n/a No
Speaker Test
Max Volume
Vivo iQOO Z9 5G
n/a
Xiaomi Redmi 8
88.6 dB

Other

Class Mid-range Budget
Announced March, 2024 yr October, 2019 yr
Release Date March, 2024 yr October, 2019 yr
Launch Price ($) n/a 140
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 80 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Vivo iQOO Z9 5G the clear winner in this comparison.

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