Home Phone comparison Xiaomi Mi 11 Ultra and Xiaomi Redmi Note 15 5G - Which is better?

Xiaomi Mi 11 Ultra vs Xiaomi Redmi Note 15 5G

69 out 100
Xiaomi Mi 11 Ultra
VS
63 out 100
Xiaomi Redmi Note 15 5G
Xiaomi Mi 11 Ultra
Xiaomi Redmi Note 15 5G

Compared 2 smartphones : Xiaomi Mi 11 Ultra Manufactured in April, 2021, with display 6.81 with chipsetQualcomm Snapdragon 888, vs Xiaomi Redmi Note 15 5G, Manufactured in August, 2025 with chipsetQualcomm Snapdragon 6 Gen 3. 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 Mi 11 Ultra
  • Larger display: 6.81in
  • Higher pixel density: 515ppi
  • Newer Bluetooth version: 5.2 vs 5.1
Reasons to choose Xiaomi Redmi Note 15 5G
  • Lighter design: 178g vs 234g
  • Higher battery capacity: 5800mAh vs 5000mAh
  • Includes charger

Versions

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

Review

Key Specs Xiaomi Mi 11 Ultra and Xiaomi Redmi Note 15 5G
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:
Xiaomi Mi 11 Ultra
vs
Redmi Note 15 5G

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.81 in 6.77 in
Resolution 1440x3200 pixels 1080x2340 pixels
Aspect ratio 20:9 n/a
Pixel density 515 ppi 388 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes Yes (60-120 Hz)
Max brightness 900 nits n/a
HDR support Yes HDR10+ No
Touch Sampling Rate 480 Hz n/a
Screen-to-body ratio 91.4 % 89.1 %
Features - DCI-P3
- Always-On Display
- DC dimming		 DCI-P3
Display test
Peak brightness (auto)
Xiaomi Mi 11 Ultra
939 nits
Xiaomi Redmi Note 15 5G
n/a
sRGB gamut99.8 %n/a
PWM (Flicker)510 Hzn/a
Response time2.8 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi Mi 11 Ultra]

Design & Build

Design and ergonomics comparison
Height 164.3 mm (6.47 in) 165 mm (6.5 in)
Width 74.6 mm (2.94 in) 75.4 mm (2.97 in)
Thickness 8.4 mm (0.33 in) 7.4 mm (0.29 in)
Weight 234 g (8.25 oz) 178 g (6.28 oz)
Water resistance IP68 IP68
Back panel Ceramic n/a
Frame Metal Plastic
Colors - White
- Black		 - White
- Black
- Blue
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi Mi 11 Ultra
91.4 %
Xiaomi Redmi Note 15 5G
89.1 %

Performance

Testing Xiaomi Mi 11 Ultra and Xiaomi Redmi Note 15 5G In benchmarks
Processor
Chipset Qualcomm Snapdragon 888 Qualcomm Snapdragon 6 Gen 3
Max Frequency 2840 MHz 2400 MHz
CPU Cores 8 (1 + 3 + 4) 8 (4 + 4)
Architecture - 4/1.8 (Kryo 680 Silver (Cortex-A55))
- 3/2.42 (Kryo 680 Gold (Cortex-A78))
- 1/2.84 (Kryo 680 Prime (Cortex-X1))		 - 4/1.8 (Cortex-A55)
- 4/2.4 (Cortex-A78)
Process Samsung Samsung
Transistor Size 5 nm 4 nm
Neural Processor Hexagon 780 Hexagon
Graphics Adreno 660 Adreno 710
GPU Cores 1024 256
GPU Frequency 840 MHz 1010 MHz
FLOPS 1290.2 GFLOPS 517.1 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Mi 11 Ultra
1463
Xiaomi Redmi Note 15 5G
1015
Geekbench 6 (Multi-Core)
Xiaomi Mi 11 Ultra
3911
Xiaomi Redmi Note 15 5G
2890
Geekbench 6 (Single-Core)14631015
Geekbench 6 (Multi-Core)39112890
AnTuTu 10
AnTuTu 10
Xiaomi Mi 11 Ultra
923576
Xiaomi Redmi Note 15 5G
608985
CPU246800200717
GPU260294141388
Memory182528118625
UX233954148255
NanoReview Score923576608985
3DMark Wild Life
3DMark Wild Life
Xiaomi Mi 11 Ultra
5285
Xiaomi Redmi Note 15 5G
n/a
Max Surface Temp.43.1 °Cn/a
Stability91 %n/a
Graphics Test31 fpsn/a
Graphics Score5285n/a
Sources: 3DMark [Xiaomi Mi 11 Ultra]
PCMark 3.0
PCMark 3.0
Xiaomi Mi 11 Ultra
12250
Xiaomi Redmi Note 15 5G
n/a
Writing score14672n/a
Web score11015n/a
Video editing7568n/a
Data manipulation9531n/a
NanoReview Score12250n/a

Memory

RAM
RAM Size - 8 GB
- 12 GB		 6 GB
Memory Type LPDDR5 LPDDR4X
Memory Frequency 2750 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity- 256 GB
- 512 GB		128 GB
Storage TypeUFS 3.1UFS 2.2
Memory CardNoNo

Software

OS Android 11 (Upgradeable to Android 14) Android 15
OS Size 31 GB n/a
UI Skin HyperOS 1.0 HyperOS 2.0

Battery

Volume 5000 mAh 5800 mAh
Max Charging Power 67 W 45 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging Yes (67 W) No
Reverse Charging Yes (Wireless) Yes
Fast Charging Yes (90% in 30 min) Yes
Full Charge Time 0:37 h n/a
Battery Life Test
Battery Life
Xiaomi Mi 11 Ultra
17:59
Xiaomi Redmi Note 15 5G
n/a
Web Browsing06:28 hn/a
Video Playback11:22 hn/a
Games04:38 hn/a
Standby Mode90 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8700x5800 pixels n/a
Zoom Optical, 5x Digital
Flash Dual 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 128 ° n/a
Lenses count Standard: 50 MP
Telephoto: 48 MP
Ultra-wide: 48 MP		 Standard: 50 MP
Depth: 2 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/2.0f/1.8
Focal length24 mmn/a
SensorSamsung GN2n/a
Sensor size1/1.121/2
Pixel size1.4 μm0.64 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalDigital
Telephoto
Matrix48 MPn/a
Aperturef/4.1n/a
Focal length120 mmn/a
SensorSony IMX586n/a
Sensor size1/2n/a
Pixel size0.8 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix48 MPn/a
Aperturef/2.2n/a
Focal length12 mmn/a
SensorSony IMX586n/a
Sensor size1/2n/a
Pixel size0.8 μmn/a
StabilizationDigitaln/a
Main camera DxOMark results
Photo quality
Xiaomi Mi 11 Ultra
139
Xiaomi Redmi Note 15 5G
n/a
Video quality
Xiaomi Mi 11 Ultra
138
Xiaomi Redmi Note 15 5G
n/a
Overall camera score
Xiaomi Mi 11 Ultra
141
Xiaomi Redmi Note 15 5G
n/a
Bokeh75n/a
Preview72n/a
Zoom142n/a
Sources: DxOMark [Xiaomi Mi 11 Ultra]

Front camera

Matrix 20 MP 8 MP
Photo resolution 5380x3620 pixels n/a
Aperture f/2.3 f/2.0
Focal length 27 mm n/a
Sensor Samsung S5K3T2 n/a
Sensor size 1/3.4 n/a
Pixel size 0.8 μm n/a
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 1080p (Full HD) at 60 fps
TOF 3D sensor No No
Selfie camera DxOMark results
Photo quality
Xiaomi Mi 11 Ultra
117
Xiaomi Redmi Note 15 5G
n/a
Video quality
Xiaomi Mi 11 Ultra
139
Xiaomi Redmi Note 15 5G
n/a

Connectivity

Wi-Fi version Wi-Fi 6E (802.11 a/b/g/n/ac/ax) 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 5.2 5.1
Bluetooth features LE, A2DP 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 n/a No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - 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 BandsGSM850 900 1800 MHzn/a
3G BandsWCDMAB1 / B2 / B4 / B5 / B8 / B19n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B20/B28/B32/B38/B40/B41/B42/B66)n/a
LTE category24n/a
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No Yes
FM Radio No Yes
Dolby Atmos No n/a
Speaker Test
Max Volume
Xiaomi Mi 11 Ultra
89.5 dB
Xiaomi Redmi Note 15 5G
n/a

Other

Class Flagship Mid-range
Announced March, 2021 yr August, 2025 yr
Release Date April, 2021 yr August, 2025 yr
Launch Price ($) 1299 n/a
Sensors - Hall Sensor
- Barometer
- 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, 45 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

No clear favorite identified yet; updates may follow as new data arrives.

Survey

Which smartphone would you pick?
0 (0%)
0 (0%)
Total Votes: 0

User comments

Share your opinion or ask questions below