Home Phone comparison Xiaomi Redmi Note 9 and Vivo iQOO 15 - Which is better?

Xiaomi Redmi Note 9 vs Vivo iQOO 15

43 out 100
Xiaomi Redmi Note 9
VS
94 out 100
Vivo iQOO 15
Xiaomi Redmi Note 9
Vivo iQOO 15

Compared 2 smartphones : Xiaomi Redmi Note 9 Manufactured in June, 2020, with display 6.53 with chipsetMediaTek Helio G85, vs Vivo iQOO 15, Manufactured in October, 2025 with chipsetQualcomm Snapdragon 8 Elite Gen 5. 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 Xiaomi Redmi Note 9
  • Lighter design: 199g vs 220g
Reasons to choose Vivo iQOO 15
  • Larger display: 6.85in
  • Higher pixel density: 508ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 5020mAh
  • Newer Bluetooth version: 6.0 vs 5
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Includes charger

Versions

Available versions and configurations
Memory Options - 3/64 GB
- 4/64 GB
- 4/128 GB
- 6/128 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Xiaomi Redmi Note 9 and Vivo iQOO 15
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:
Xiaomi Redmi Note 9
vs
Vivo iQOO 15

Display

Display quality comparison
Type IPS LCD AMOLED
Size 6.53 in 6.85 in
Resolution 1080x2340 pixels 1440x3168 pixels
Aspect ratio 19.5:9 20:9
Pixel density 395 ppi 508 ppi
Refresh rate 60 Hz 144 Hz
Adaptive refresh rate No Yes (1-120 Hz)
Max brightness 450 nits 2600 nits
HDR support No Yes, HDR10+
Screen-to-body ratio 83.5 % 90.2 %
Features n/a - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi Redmi Note 9
464 nits
Vivo iQOO 15
n/a
sRGB gamut97.7 %n/a
Response time32.2 msn/a
Contrast4608:1n/a
Sources: NotebookCheck [Xiaomi Redmi Note 9]

Design & Build

Design and ergonomics comparison
Height 162.3 mm (6.39 in) 163.65 mm (6.44 in)
Width 77.2 mm (3.04 in) 76.8 mm (3.02 in)
Thickness 8.9 mm (0.35 in) 8.1 mm (0.32 in)
Weight 199 g (7.02 oz) 220 g (7.76 oz)
Water resistance No IP69
Cooling system n/a Vapor chamber
Back panel Plastic n/a
Frame Plastic Metal
Colors - White
- Gray
- Green		 - White
- Black
- Blue
Fingerprint sensor Yes rear Yes, In-Display
Screen-to-body ratio
Xiaomi Redmi Note 9
83.5 %
Vivo iQOO 15
90.2 %

Performance

Testing Xiaomi Redmi Note 9 and Vivo iQOO 15 In benchmarks
Processor
Chipset MediaTek Helio G85 Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 2000 MHz 4600 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.8 (Cortex-A55)
- 2/2 (Cortex-A75)		 6/3.63 ()
Process TSMC TSMC
Transistor Size 12 nm 3 nm
Neural Processor Yes Hexagon
Graphics Mali-G52 MP2 Adreno 840
GPU Cores 48 1536
GPU Frequency 1000 MHz 1200 MHz
FLOPS 96 GFLOPS 3686.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi Note 9
516
Vivo iQOO 15
3641
Geekbench 6 (Multi-Core)
Xiaomi Redmi Note 9
1562
Vivo iQOO 15
10982
Geekbench 6 (Single-Core)5163641
Geekbench 6 (Multi-Core)156210982
Geekbench Compute (GPU)n/a27923
Sources: Geekbench v6 [Vivo iQOO 15]
AnTuTu 10
AnTuTu 10
Xiaomi Redmi Note 9
272057
Vivo iQOO 15
4009400
CPU891551102463
GPU496941429688
Memory60565516447
UX72643960802
NanoReview Score2720574009400

Memory

RAM
RAM Size - 3 GB
- 4 GB
- 6 GB		 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 1800 MHz 5300 MHz
Channels 2 4
Storage
Storage Capacity- 64 GB
- 128 GB		256 GB
Storage TypeeMMC 5.1UFS 4.1
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 12) Android 16
OS Size 16.5 GB n/a
UI Skin MIUI 13 OriginOS 6

Battery

Volume 5020 mAh 7000 mAh
Max Charging Power 18 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (40 W)
Reverse Charging Yes No
Fast Charging Yes (50% in 40 min) Yes
Full Charge Time 1:30 h n/a
Battery Life Test
Battery Life
Xiaomi Redmi Note 9
24:19
Vivo iQOO 15
n/a
Web Browsing09:31 hn/a
Video Playback14:21 hn/a
Games05:45 hn/a
Standby Mode121 hn/a

Main camera

Matrix 48 MP 50 MP
Photo resolution 8000x6000 pixels 8192x6144 pixels
Zoom Digital Optical, 3x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No Yes (Up to 30 fps)
4K Recording No Yes (Up to 60 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion 120 fps (720p) 240 fps (1080p)
Wide-angle lens 118 ° n/a
Lenses count Standard: 48 MP
Ultra-wide: 8 MP
Macro: 2 MP
Depth: 2 MP		 Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix48 MP50 MP
Aperturef/1.8f/1.9
Focal length26 mm23 mm
SensorSamsung S5KGM1n/a
Sensor size1/2.01/1.56
Pixel size0.8 μm1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/2.7
Sensor sizen/a1/1.95
Pixel sizen/a0.8 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/2.1
Focal lengthn/a15 mm
Sensor size1/4.01/2.76
Pixel size1.12 μm0.64 μm
StabilizationDigitalDigital

Front camera

Matrix 13 MP 32 MP
Photo resolution 4128x3096 pixels n/a
Aperture f/2.3 f/2.2
Focal length 29 mm 21 mm
Sensor CMOS CMOS
Sensor size 1/3.1 n/a
Pixel size 1.12 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 6.0
Bluetooth features LE, HID, A2DP LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 2100 / 2600 / 2300 / 2500GSM 850/900/1800/1900MHz
3G BandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100WCDMA B1/B2/B4/B5/B6/B8/B19
LTE Bands*LTE (B850/B900/B1800/B2100/B2300/B2500/B2600)LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B38/B40/B41/B42/B66)
LTE category7n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos No n/a
Speaker Test
Max Volume
Xiaomi Redmi Note 9
92.4 dB
Vivo iQOO 15
n/a

Other

Class Mid-range Flagship
Announced April, 2020 yr October, 2025 yr
Release Date June, 2020 yr October, 2025 yr
Launch Price ($) 199 n/a
MSRP ($) n/a 590
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included n/a Yes, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Vivo iQOO 15 the clear winner in this comparison.

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