Home Phone comparison Xiaomi Poco X3 GT and Xiaomi 15T - Which is better?

Xiaomi Poco X3 GT vs Xiaomi 15T

56 out 100
Xiaomi Poco X3 GT
VS
82 out 100
Xiaomi 15T
Xiaomi Poco X3 GT
Xiaomi 15T

Compared 2 smartphones : Xiaomi Poco X3 GT Manufactured in August, 2021, with display 6.6 with chipsetMediaTek Dimensity 1100 5G, vs Xiaomi 15T, Manufactured in September, 2025with chipsetMediaTek Dimensity 8400 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 Poco X3 GT
  • Lighter design: 193g vs 194g
Reasons to choose Xiaomi 15T
  • Larger display: 6.83in
  • Higher pixel density: 447ppi
  • Higher battery capacity: 5500mAh vs 5000mAh
  • Newer Bluetooth version: 6.0 vs 5.2
  • Built-in eSIM

Versions

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

Review

Key Specs Xiaomi Poco X3 GT 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.
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 Poco X3 GT
vs
Xiaomi 15T

Display

Display quality comparison
Type IPS LCD AMOLED
Size 6.6 in 6.83 in
Resolution 1080x2400 pixels 1280x2772 pixels
Aspect ratio 20:9 19.5:9
Pixel density 399 ppi 447 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes Yes
Max brightness 450 nits n/a
HDR support Yes HDR10 Yes, Dolby Vision
Touch Sampling Rate 240 Hz 480 Hz
Screen-to-body ratio 84.9 % 89.9 %
Features DCI-P3 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi Poco X3 GT
532 nits
Xiaomi 15T
n/a

Design & Build

Design and ergonomics comparison
Height 163.3 mm (6.43 in) 163.2 mm (6.43 in)
Width 75.9 mm (2.99 in) 78 mm (3.07 in)
Thickness 8.9 mm (0.35 in) 7.5 mm (0.3 in)
Weight 193 g (6.81 oz) 194 g (6.84 oz)
Water resistance IP53 IP68
Cooling system n/a Vapor chamber
Back panel Plastic n/a
Frame Plastic Plastic
Colors - White
- Black
- Blue		 - Black
- Gray
- Rose Gold
Fingerprint sensor Yes In-Button Yes, In-Display
Screen-to-body ratio
Xiaomi Poco X3 GT
84.9 %
Xiaomi 15T
89.9 %

Performance

Testing Xiaomi Poco X3 GT and Xiaomi 15T In benchmarks
Processor
Chipset MediaTek Dimensity 1100 5G MediaTek Dimensity 8400 Ultra
Max Frequency 2600 MHz 3250 MHz
CPU Cores 8 (4 + 4) 8 (1 + 3 + 4)
Architecture - 4/2 (Cortex-A55)
- 4/2.6 (Cortex-A78)		 - 4/2.1 (Cortex-A725)
- 3/3 (Cortex-A725)
- 1/3.25 (Cortex-A725)
Process TSMC TSMC
Transistor Size 6 nm 4 nm
Neural Processor MediaTek APU 3.0 MediaTek NPU 880
Graphics Mali-G77 MP9 Mali-G720 MP7
GPU Cores 576 896
GPU Frequency 836 MHz 1300 MHz
FLOPS 979.2 GFLOPS 2329.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Poco X3 GT
1128
Xiaomi 15T
1603
Geekbench 6 (Multi-Core)
Xiaomi Poco X3 GT
3172
Xiaomi 15T
6413
Geekbench 6 (Single-Core)11281603
Geekbench 6 (Multi-Core)31726413
Geekbench Compute (GPU)n/a11228
Sources: Geekbench v6 [Xiaomi 15T]
AnTuTu 10
AnTuTu 10
Xiaomi Poco X3 GT
748430
Xiaomi 15T
1872827
CPU225630448609
GPU194303683486
Memory152900396486
UX175597344246
NanoReview Score7484301872827
3DMark Wild Life
3DMark Wild Life
Xiaomi Poco X3 GT
4299
Xiaomi 15T
n/a
Stability98 %n/a
Graphics Test25 fpsn/a
Graphics Score4299n/a
Sources: 3DMark [Xiaomi Poco X3 GT]
PCMark 3.0
PCMark 3.0
Xiaomi Poco X3 GT
9687
Xiaomi 15T
n/a
Writing score11093n/a
Web score7059n/a
Video editing6615n/a
Data manipulation7698n/a
NanoReview Score9687n/a

Memory

RAM
RAM Size 8 GB 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz n/a
Channels 2 4
Storage
Storage Capacity- 128 GB
- 256 GB		256 GB
Storage TypeUFS 3.1UFS 4.1
Memory CardNoNo

Software

OS Android 11 (Upgradeable to Android 13) Android 15
UI Skin MIUI 14 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 No No
Reverse Charging No No
Fast Charging Yes (75% in 30 min) Yes (50% in 22 min)
Full Charge Time 0:48 h 0:50 h
Battery Life Test
Battery Life
Xiaomi Poco X3 GT
23:22
Xiaomi 15T
n/a
Web Browsing08:23 hn/a
Video Playback13:11 hn/a
Games05:34 hn/a
Standby Mode126 hn/a

Main camera

Matrix 64 MP 50 MP
Photo resolution 9248x6936 pixels 8192x6144 pixels
Zoom Digital Optical, 2x
Flash Dual LED Dual LED
Stabilization Digital Optical
8K Recording No No
4K Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 960 fps (720p) 240 fps (1080p)
Wide-angle lens 120 ° 120 °
Lenses count Standard: 64 MP
Ultra-wide: 8 MP
Macro: 2 MP		 Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix64 MP50 MP
Aperturef/1.8f/1.7
Focal length26 mm23 mm
SensorOmnivision OV64BOmnivision OV50 Light Hunter 800
Sensor size1/1.971/1.55
Pixel size0.7 μm1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/1.9
Focal lengthn/a46 mm
Sensorn/aSamsung S5KJN5
Sensor sizen/a1/2.76
Pixel sizen/a0.64 μm
Stabilizationn/aDigital
Ultra-wide lens
Matrix8 MP12 MP
Aperturef/2.2f/2.2
Focal length16 mm15 mm
SensorSony IMX355n/a
Sensor size1/4.01/3.06
Pixel size1.12 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 16 MP 32 MP
Photo resolution 4920x3264 pixels n/a
Aperture f/2.5 f/2.2
Focal length n/a 21 mm
Sensor OmniVision OV16A1 CMOS
Sensor size 1/3.06 1/3.44
Pixel size 1 μm 0.64 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6 (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 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		 - 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 BandsGSM 850 900 1800 1900MHzGSM 2/3/5/8
3G BandsWCDMA 1, 2, 4, 5, 8WCDMA B1/2/4/5/8/6/19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B26/B28/B38/B40/B41/B42)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66/B71)
LTE category18n/a
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes

Other

Class Mid-range Mid-range
Announced July, 2021 yr September, 2025 yr
Release Date August, 2021 yr September, 2025 yr
Launch Price ($) 300 n/a
MSRP ($) n/a 650
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 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.

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