Xiaomi Mi 11 Ultra vs Xiaomi 15T

Compared 2 smartphones : Xiaomi Mi 11 Ultra Manufactured in April, 2021, with display 6.81 with chipsetQualcomm Snapdragon 888, vs Xiaomi 15T, Manufactured in September, 2025with chipsetMediaTek Dimensity 8400 Ultra. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi Mi 11 Ultra
  • Higher pixel density: 515ppi
Reasons to choose Xiaomi 15T
  • Larger display: 6.83in
  • Lighter design: 194g vs 234g
  • Higher battery capacity: 5500mAh vs 5000mAh
  • Newer Bluetooth version: 6.0 vs 5.2
  • Supports Dolby Atmos
  • Built-in eSIM

Versions

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

Review

Key Specs Xiaomi Mi 11 Ultra and Xiaomi 15T
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:
vs

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.81 in 6.83 in
Resolution 1440x3200 pixels 1280x2772 pixels
Aspect ratio 20:9 19.5:9
Pixel density 515 ppi 447 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes Yes
Max brightness 900 nits n/a
HDR support Yes HDR10+ Yes, Dolby Vision
Touch Sampling Rate 480 Hz 480 Hz
Screen-to-body ratio 91.4 % 89.9 %
Features - DCI-P3
- Always-On Display
- DC dimming
- DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi Mi 11 Ultra
939 nits
Xiaomi 15T
n/a
sRGB gamut99.8 %n/a
PWM (Flicker)510 Hzn/a
Response time2.8 msn/a
Contrast∞ Infiniten/a

Design & Build

Design and ergonomics comparison
Height 164.3 mm (6.47 in) 163.2 mm (6.43 in)
Width 74.6 mm (2.94 in) 78 mm (3.07 in)
Thickness 8.4 mm (0.33 in) 7.5 mm (0.3 in)
Weight 234 g (8.25 oz) 194 g (6.84 oz)
Water resistance IP68 IP68
Cooling system n/a Vapor chamber
Back panel Ceramic n/a
Frame Metal Plastic
Colors - White
- Black
- Black
- Gray
- Rose Gold
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi Mi 11 Ultra
91.4 %
Xiaomi 15T
89.9 %

Performance

Testing Xiaomi Mi 11 Ultra and Xiaomi 15T In benchmarks
Processor
Chipset Qualcomm Snapdragon 888 MediaTek Dimensity 8400 Ultra
Max Frequency 2840 MHz 3250 MHz
CPU Cores 8 (1 + 3 + 4) 8 (1 + 3 + 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))
- 4/2.1 (Cortex-A725)
- 3/3 (Cortex-A725)
- 1/3.25 (Cortex-A725)
Process Samsung TSMC
Transistor Size 5 nm 4 nm
Neural Processor Hexagon 780 MediaTek NPU 880
Graphics Adreno 660 Mali-G720 MP7
GPU Cores 1024 896
GPU Frequency 840 MHz 1300 MHz
FLOPS 1290.2 GFLOPS 2329.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Mi 11 Ultra
1463
Xiaomi 15T
1603
Geekbench 6 (Multi-Core)
Xiaomi Mi 11 Ultra
3911
Xiaomi 15T
6413
Geekbench 6 (Single-Core)14631603
Geekbench 6 (Multi-Core)39116413
Geekbench Compute (GPU)n/a11228
AnTuTu 10
AnTuTu 10
Xiaomi Mi 11 Ultra
923576
Xiaomi 15T
1872827
CPU246800448609
GPU260294683486
Memory182528396486
UX233954344246
NanoReview Score9235761872827
3DMark Wild Life
3DMark Wild Life
Xiaomi Mi 11 Ultra
5285
Xiaomi 15T
n/a
Max Surface Temp.43.1 °Cn/a
Stability91 %n/a
Graphics Test31 fpsn/a
Graphics Score5285n/a
PCMark 3.0
PCMark 3.0
Xiaomi Mi 11 Ultra
12250
Xiaomi 15T
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
12 GB
Memory Type LPDDR5 LPDDR5X
Memory Frequency 2750 MHz n/a
Channels 2 4
Storage
Storage Capacity- 256 GB
- 512 GB
256 GB
Storage TypeUFS 3.1UFS 4.1
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 5500 mAh
Max Charging Power 67 W 67 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging Yes (67 W) No
Reverse Charging Yes (Wireless) No
Fast Charging Yes (90% in 30 min) Yes (50% in 22 min)
Full Charge Time 0:37 h 0:50 h
Battery Life Test
Battery Life
Xiaomi Mi 11 Ultra
17:59
Xiaomi 15T
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 8192x6144 pixels
Zoom Optical, 5x Optical, 2x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording Up to 24FPS No
4K Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 1920 fps (1080p) 240 fps (1080p)
Wide-angle lens 128 ° 120 °
Lenses count Standard: 50 MP
Telephoto: 48 MP
Ultra-wide: 48 MP
Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode
- RAW support
- Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP50 MP
Aperturef/2.0f/1.7
Focal length24 mm23 mm
SensorSamsung GN2Omnivision OV50 Light Hunter 800
Sensor size1/1.121/1.55
Pixel size1.4 μm1 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix48 MP50 MP
Aperturef/4.1f/1.9
Focal length120 mm46 mm
SensorSony IMX586Samsung S5KJN5
Sensor size1/21/2.76
Pixel size0.8 μm0.64 μm
StabilizationOpticalDigital
Ultra-wide lens
Matrix48 MP12 MP
Aperturef/2.2f/2.2
Focal length12 mm15 mm
SensorSony IMX586n/a
Sensor size1/21/3.06
Pixel size0.8 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi Mi 11 Ultra
139
Xiaomi 15T
n/a
Video quality
Xiaomi Mi 11 Ultra
138
Xiaomi 15T
n/a
Overall camera score
Xiaomi Mi 11 Ultra
141
Xiaomi 15T
n/a
Bokeh75n/a
Preview72n/a
Zoom142n/a

Front camera

Matrix 20 MP 32 MP
Photo resolution 5380x3620 pixels n/a
Aperture f/2.3 f/2.2
Focal length 27 mm 21 mm
Sensor Samsung S5K3T2 CMOS
Sensor size 1/3.4 1/3.44
Pixel size 0.8 μm 0.64 μm
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 2160p (4K) at 30 fps
TOF 3D sensor No No
Selfie camera DxOMark results
Photo quality
Xiaomi Mi 11 Ultra
117
Xiaomi 15T
n/a
Video quality
Xiaomi Mi 11 Ultra
139
Xiaomi 15T
n/a

Connectivity

Wi-Fi version Wi-Fi 6E (802.11 a/b/g/n/ac/ax) Wi-Fi 6E (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- 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 5.2 6.0
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 *NoYes
Hybrid SlotNoNo
2G BandsGSM850 900 1800 MHzGSM 2/3/5/8
3G BandsWCDMAB1 / B2 / B4 / B5 / B8 / B19WCDMA B1/2/4/5/8/6/19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B20/B28/B32/B38/B40/B41/B42/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66/B71)
LTE category24n/a
5G SupportYesYes

Sound

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

Other

Class Flagship Mid-range
Announced March, 2021 yr September, 2025 yr
Release Date April, 2021 yr September, 2025 yr
Launch Price ($) 1299 n/a
MSRP ($) n/a 650
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 No
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi 15T the clear winner in this comparison.

Survey

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Total Votes: 1

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