Home Phone comparison Vivo iQOO 15 and Xiaomi Redmi Note 15 4G - Which is better?

Vivo iQOO 15 vs Xiaomi Redmi Note 15 4G

94 out 100
Vivo iQOO 15
VS
64 out 100
Xiaomi Redmi Note 15 4G
Vivo iQOO 15
Xiaomi Redmi Note 15 4G

Compared 2 smartphones : Vivo iQOO 15 Manufactured in October, 2025, with display 6.85 with chipsetQualcomm Snapdragon 8 Elite Gen 5, vs Xiaomi Redmi Note 15 4G, Manufactured in December, 2025with chipsetMediaTek Helio G100 Ultra. 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 15
  • Larger display: 6.85in
  • Higher pixel density: 508ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 6000mAh
  • Newer Bluetooth version: 6.0 vs 5.3
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Infrared port
  • Includes charger
Reasons to choose Xiaomi Redmi Note 15 4G
  • Lighter design: 183.7g vs 220g

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB		 - 6/128 GB
- 8/128 GB
- 8/256 GB
- 8/512 GB

Review

Key Specs Vivo iQOO 15 and Xiaomi Redmi Note 15 4G
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 15
vs
Redmi Note 15 4G

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.85 in 6.77 in
Resolution 1440x3168 pixels 1080x2340 pixels
Aspect ratio 20:9 n/a
Pixel density 508 ppi 388 ppi
Refresh rate 144 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (60-120 Hz)
Max brightness 2600 nits n/a
HDR support Yes, HDR10+ No
Screen-to-body ratio 90.2 % 89.7 %
Features - DCI-P3
- Always-On Display
- DC dimming		 DCI-P3

Design & Build

Design and ergonomics comparison
Height 163.65 mm (6.44 in) 164 mm (6.46 in)
Width 76.8 mm (3.02 in) 75.4 mm (2.97 in)
Thickness 8.1 mm (0.32 in) 7.4 mm (0.29 in)
Weight 220 g (7.76 oz) 183.7 g (6.48 oz)
Water resistance IP69 IP64
Cooling system Vapor chamber n/a
Back panel n/a Plastic
Frame Metal Plastic
Colors - White
- Black
- Blue		 - Black
- Blue
- Green
- Purple
Fingerprint sensor Yes, In-Display Yes, In-Display
Screen-to-body ratio
Vivo iQOO 15
90.2 %
Xiaomi Redmi Note 15 4G
89.7 %

Performance

Testing Vivo iQOO 15 and Xiaomi Redmi Note 15 4G In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Gen 5 MediaTek Helio G100 Ultra
Max Frequency 4600 MHz 2200 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture 6/3.63 () - 6/2 (Cortex-A55)
- 2/2.2 (Cortex-A76)
Process TSMC TSMC
Transistor Size 3 nm 6 nm
Neural Processor Hexagon Yes
Graphics Adreno 840 Mali-G57 MP2
GPU Cores 1536 64
GPU Frequency 1200 MHz 1000 MHz
FLOPS 3686.4 GFLOPS 128 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Vivo iQOO 15
3641
Xiaomi Redmi Note 15 4G
730
Geekbench 6 (Multi-Core)
Vivo iQOO 15
10982
Xiaomi Redmi Note 15 4G
2025
Geekbench 6 (Single-Core)3641730
Geekbench 6 (Multi-Core)109822025
Geekbench Compute (GPU)27923n/a
Sources: Geekbench v6 [Vivo iQOO 15]
AnTuTu 10
AnTuTu 10
Vivo iQOO 15
4009400
Xiaomi Redmi Note 15 4G
437184
CPU1102463132724
GPU142968872238
Memory516447109980
UX960802122242
NanoReview Score4009400437184

Memory

RAM
RAM Size 12 GB 6 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 5300 MHz 2133 MHz
Channels 4 2
Storage
Storage Capacity256 GB128 GB
Storage TypeUFS 4.1UFS 2.2
Memory CardNoNo

Software

OS Android 16 Android 15
UI Skin OriginOS 6 HyperOS 2.0

Battery

Volume 7000 mAh 6000 mAh
Max Charging Power 100 W 33 W
Battery Type Silicon Carbon (Si/C) Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (40 W) No
Reverse Charging No Yes
Fast Charging Yes Yes

Main camera

Matrix 50 MP 108 MP
Photo resolution 8192x6144 pixels n/a
Zoom Optical, 3x Digital
Flash Dual LED LED
Stabilization Optical Digital
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 60 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 240 fps (1080p) n/a
Lenses count Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP		 Standard: 108 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP108 MP
Aperturef/1.9f/1.7
Focal length23 mm24 mm
Sensor size1/1.561/1.67 (0.6)
Pixel size1 μm0.64 μm
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalDigital
Telephoto
Matrix50 MPn/a
Aperturef/2.7n/a
Sensor size1/1.95n/a
Pixel size0.8 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix50 MPn/a
Aperturef/2.1n/a
Focal length15 mmn/a
Sensor size1/2.76n/a
Pixel size0.64 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 32 MP 20 MP
Aperture f/2.2 f/2.2
Focal length 21 mm n/a
Sensor CMOS Omnivision OV02F
Sensor size n/a 1/5 (0.2)
Pixel size n/a 1.75 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 6.0 5.3
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Varies by region
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850/900/1800/1900MHzn/a
3G BandsWCDMA B1/B2/B4/B5/B6/B8/B19n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B38/B40/B41/B42/B66)n/a
5G SupportYesNo

Sound

3.5 mm Jack No No
FM Radio No Yes

Other

Class Flagship Mid-range
Announced October, 2025 yr December, 2025 yr
Release Date October, 2025 yr December, 2025 yr
MSRP ($) 590 n/a
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes, 100 W n/a
* 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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