Home Phone comparison Xiaomi Mix Fold 4 and Xiaomi Redmi Note 15 4G - Which is better?

Xiaomi Mix Fold 4 vs Xiaomi Redmi Note 15 4G

84 out 100
Xiaomi Mix Fold 4
VS
64 out 100
Xiaomi Redmi Note 15 4G
Xiaomi Mix Fold 4
Xiaomi Redmi Note 15 4G

Compared 2 smartphones : Xiaomi Mix Fold 4 Manufactured in July, 2024, with display 7.98 with chipsetQualcomm Snapdragon 8 Gen 3, vs Xiaomi Redmi Note 15 4G, Manufactured in December, 2025 with 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 Xiaomi Mix Fold 4
  • Larger display: 7.98in
  • Higher pixel density: 418ppi
  • Newer Bluetooth version: 5.4 vs 5.3
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Infrared port
  • Includes charger
Reasons to choose Xiaomi Redmi Note 15 4G
  • Lighter design: 183.7g vs 228g
  • Higher battery capacity: 6000mAh vs 5100mAh

Versions

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

Review

Key Specs Xiaomi Mix Fold 4 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:
Xiaomi Mix Fold 4
vs
Redmi Note 15 4G

Display

Display quality comparison
Type AMOLED AMOLED
Size 7.98 in 6.77 in
Resolution 2224x2488 pixels 1080x2340 pixels
Aspect ratio 10.15:9 n/a
Pixel density 418 ppi 388 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes Yes (60-120 Hz)
Max brightness 3000 nits n/a
HDR support Yes Dolby Vision No
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 89.3 % 89.7 %
Features - DCI-P3
- Always-On Display
- DC dimming		 DCI-P3
Display test
Peak brightness (auto)
Xiaomi Mix Fold 4
1118 nits
Xiaomi Redmi Note 15 4G
n/a
sRGB gamut99.9 %n/a
PWM (Flicker)120 Hzn/a
Response time7 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi Mix Fold 4]

Design & Build

Design and ergonomics comparison
Height 159.37 mm (6.27 in) 164 mm (6.46 in)
Width 143.3 mm (5.64 in) 75.4 mm (2.97 in)
Thickness 4.59 mm (0.18 in) 7.4 mm (0.29 in)
Weight 228 g (8.04 oz) 183.7 g (6.48 oz)
Water resistance IPX8 IP64
Cooling system Vapor chamber n/a
Back panel Glass Plastic
Frame Metal Plastic
Colors - White
- Black
- Blue		 - Black
- Blue
- Green
- Purple
Fingerprint sensor Yes In-Button Yes, In-Display
Screen-to-body ratio
Xiaomi Mix Fold 4
89.3 %
Xiaomi Redmi Note 15 4G
89.7 %

Performance

Testing Xiaomi Mix Fold 4 and Xiaomi Redmi Note 15 4G In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 3 MediaTek Helio G100 Ultra
Max Frequency 3300 MHz 2200 MHz
CPU Cores 8 (1 + 3 + 2 + 2) 8 (2 + 6)
Architecture - 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)		 - 6/2 (Cortex-A55)
- 2/2.2 (Cortex-A76)
Process TSMC TSMC
Transistor Size 4 nm 6 nm
Neural Processor Hexagon Yes
Graphics Adreno 750 Mali-G57 MP2
GPU Cores 1536 64
GPU Frequency 903-1000 MHz 1000 MHz
FLOPS 2774 GFLOPS 128 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Mix Fold 4
2129
Xiaomi Redmi Note 15 4G
730
Geekbench 6 (Multi-Core)
Xiaomi Mix Fold 4
6630
Xiaomi Redmi Note 15 4G
2025
Geekbench 6 (Single-Core)2129730
Geekbench 6 (Multi-Core)66302025
Geekbench Compute (GPU)14837n/a
Sources: Geekbench v6 [Xiaomi Mix Fold 4]
AnTuTu 10
AnTuTu 10
Xiaomi Mix Fold 4
1721880
Xiaomi Redmi Note 15 4G
437184
CPU407725132724
GPU64299072238
Memory392032109980
UX279133122242
NanoReview Score1721880437184

Memory

RAM
RAM Size - 12 GB
- 16 GB		 6 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 4200 MHz 2133 MHz
Channels 4 2
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		128 GB
Storage TypeUFS 4.0UFS 2.2
Memory CardNoNo

Software

OS Android 14 Android 15
OS Size 31 GB n/a
UI Skin HyperOS 1.0 HyperOS 2.0

Battery

Volume 5100 mAh 6000 mAh
Max Charging Power 67 W 33 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes (Wireless) Yes
Fast Charging Yes (31% in 10 min) Yes
Full Charge Time 0:55 h n/a
Battery Life Test
Battery Life
Xiaomi Mix Fold 4
23:22
Xiaomi Redmi Note 15 4G
n/a
Web Browsing09:24 hn/a
Video Playback15:08 hn/a
Games05:24 hn/a
Standby Mode108 hn/a

Main camera

Matrix 50 MP 108 MP
Photo resolution 8192x6144 pixels n/a
Zoom Optical, 5x Digital
Flash LED LED
Stabilization Optical Digital
8K Recording Up to 24FPS No
4K Recording Yes (Up to 60 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 1920 fps (1080p) n/a
Wide-angle lens 120 ° n/a
Lenses count Standard: 50 MP
Telephoto: 50 MP
Telephoto: 10 MP
Ultra-wide: 12 MP		 Standard: 108 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP108 MP
Aperturef/1.7f/1.7
Focal length23 mm24 mm
SensorOmnivision OV50 Light Hunter 800n/a
Sensor size1/1.551/1.67 (0.6)
Pixel size1 μm0.64 μm
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalDigital
Telephoto
Matrix50 MPn/a
Aperturef/2.9n/a
Focal length47 mmn/a
SensorOmnivision OV60An/a
Sensor size1/2.8n/a
Pixel size1.12 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix12 MPn/a
Aperturef/2.2n/a
Focal length15 mmn/a
SensorOmnivision OV13B10n/a
Sensor size1/3.06n/a
Pixel size1.12 μmn/a
StabilizationDigitaln/a

Front camera

Matrix 16 MP 20 MP
Aperture n/a f/2.2
Sensor Omnivision OV16F 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 1080p (Full HD) 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 5.4 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 DP 1.4 No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - 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 B2 / B3 / B5 / B8n/a
3G BandsWCDMA B1 / B2 / B4 / B5 / B6 / B8 / B19n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B34/B38/B39/B40/B41/B42/B48/B66)n/a
LTE category20n/a
5G SupportYesNo

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No Yes
Dolby Atmos Yes n/a
Speaker Test
Max Volume
Xiaomi Mix Fold 4
79.2 dB
Xiaomi Redmi Note 15 4G
n/a

Other

Class Flagship Mid-range
Announced July, 2024 yr December, 2025 yr
Release Date July, 2024 yr December, 2025 yr
Launch Price ($) 1300 n/a
Sensors - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 67 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Mix Fold 4 the clear winner in this comparison.

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