Home > Smartphone comparison > Mi 9 SE vs Xiaomi 15T – which one to choose?

Xiaomi Mi 9 SE vs Xiaomi 15T

41 out of 100
Xiaomi Mi 9 SE
VS
78 out of 100
Xiaomi 15T
Xiaomi Mi 9 SE
Xiaomi 15T

Here we compared two smartphones: the 5.97-inch Xiaomi Mi 9 SE (with Qualcomm Snapdragon 712) that was released on February 20, 2019, against the Xiaomi 15T, which is powered by MediaTek Dimensity 8400 Ultra and came out 6 years and 9 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Select the amount of RAM to evaluate performance and value for money more precisely
Memory
  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery life
  6. Camera
  7. Comments

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Mi 9 SE
  • Slow-motion recording at 960FPS
  • Better grip in hands – the body is 7.5 mm narrower
  • Weighs 39 grams less
Reasons to consider the Xiaomi 15T
  • Waterproof body (IP68 classification)
  • 4.4x better performance in AnTuTu Benchmark (1915K versus 434K)
  • Comes with 2430 mAh larger battery capacity: 5500 vs 3070 mAh
  • Higher display refresh rate – 120 Hz
  • Delivers 141% higher peak brightness (1537 against 638 nits)
  • Shows 61% longer battery life (26:15 vs 16:19 hours)
  • Has a 0.86 inch larger screen size
  • Has 2x more RAM: 12GB versus 6GB
  • Newer Bluetooth version (v6.0)
  • Supports higher wattage charging (67W versus 18W)
  • Optical image stabilization
  • More recent OS version: Android 16 versus 11
  • The phone is 6 years and 9 months newer

Review

Evaluation of Xiaomi Mi 9 SE and Xiaomi 15T crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
NanoReview Score
Final comparison evaluation
Select your primary usage scenario to get a more accurate NanoReview Score
📱 Primary usage:

Value for money (Beta)

Should I update?
No 99% Yes
Yes, this is a clear and meaningful upgrade.
Updating from Xiaomi Mi 9 SE to Xiaomi 15T is a clear step forward, and the improvements should be easy to notice.
Main improvements: performance, battery life, and gaming.

Tests and specifications

Comparison table of technical specifications and tests
Phone:
Mi 9 SE
vs
Xiaomi 15T

Display

Type AMOLED AMOLED
Size 5.97 inches 6.83 inches
Resolution 1080 x 2340 pixels 1280 x 2772 pixels
Aspect ratio 19.5:9 19.5:9
PPI 432 ppi 447 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (30-120 Hz)
Max rated brightness 585 nits 1100 nits
Max rated brightness in HDR - 3200 nits
HDR support Yes, HDR10 Yes, Dolby Vision
Touch sampling rate - 480 Hz
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 7i
Screen-to-body ratio 84.1% 89.9%
Display features - Always-On Display - DCI-P3
- Always-On Display
- DC Dimming
Display tests
RGB color space 99.9% 99.7%
PWM 255 Hz 120 Hz
Response time 4.2 ms 1 ms
Contrast ∞ Infinity ∞ Infinity
Screen space comparison
Xiaomi 15T
6.83″ (19.5:9 ratio) = 17.7 in2
Mi 9 SE
5.97″ (19.5:9 ratio) = 13.6 in2
~30% more screen space
Peak brightness test (auto)
Mi 9 SE
638 nits
Xiaomi 15T +141%
1537 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 147.5 mm (5.81 inches) 163.2 mm (6.43 inches)
Width 70.5 mm (2.78 inches) 78 mm (3.07 inches)
Thickness 7.4 mm (0.29 inches) 7.5 mm (0.3 inches)
Weight 155 g (5.47 oz) 194 g (6.84 oz)
Waterproof No IP68
Advanced cooling - Vapor chamber
Rear material Glass Plastic
Frame material Metal Plastic
Colors Gray, Blue, Purple Black, Gray, Rose gold
Fingerprint scanner Yes, in-display Yes, in-display
Repairability - Average (2.63/5)
Drop resistance - Excellent (A) · 270 drops
Screen-to-body ratio
Mi 9 SE
84.1%
Xiaomi 15T +7%
89.9%

Performance

Chipset specifications of Xiaomi Mi 9 SE and Xiaomi 15T
SoC
Chipset Qualcomm Snapdragon 712 MediaTek Dimensity 8400 Ultra
Max clock 2200 MHz 3250 MHz
CPU cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6 cores at 1.7 GHz: Kryo 360 Silver (Cortex-A55)
- 2 cores at 2.3 GHz: Kryo 360 Gold (Cortex-A75)		 - 4 cores at 2.1 GHz: Cortex-A725
- 3 cores at 3 GHz: Cortex-A725
- 1 core at 3.25 GHz: Cortex-A725
L3 cache 1 MB 6 MB
Manufacturing Samsung TSMC
Lithography process 10 nanometers 4 nanometers
Neural processor (NPU) Hexagon 685 DSP MediaTek NPU 880
GPU
Graphics Adreno 616 Mali-G720 MP7
GPU shading units 256 896
GPU clock 610 MHz 1300 MHz
FLOPS ~312.3 GFLOPS ~2329.6 GFLOPS

Benchmarks

Benchmark comparison of Xiaomi Mi 9 SE and Xiaomi 15T
Geekbench 6 (Single-Core)
Mi 9 SE
545
Xiaomi 15T +199%
1632
Geekbench 6 (Multi-Core)
Mi 9 SE
1594
Xiaomi 15T +308%
6505
Compute Score (GPU)
Mi 9 SE
n/a
Xiaomi 15T
11228
Compute Score (GPU) - 11228
Single-core score 545 1632
Multi-core score 1594 6505
Sources: Geekbench [3]
AnTuTu Benchmark 11
Mi 9 SE
434470
Xiaomi 15T +341%
1915524
CPU 163890 601024
GPU 44262 581727
Memory 87907 320685
UX 138411 412008
Total score 434470 1915524
Samples [2 tests] [16 tests]
3DMark Steel Nomad Light
Mi 9 SE
n/a
Xiaomi 15T
1281
Stability - 88%
Graphics test - 9 FPS
Graphics score - 1281
3DMark Solar Bay
Mi 9 SE
n/a
Xiaomi 15T
5899
Graphics test - 22 FPS
Section 1 - 24 FPS
Section 2 - 23 FPS
Section 3 - 20 FPS
Graphics score - 5899
Sources: 3DMark [5], [6]
PCMark 3.0
Mi 9 SE
n/a
Xiaomi 15T
14441
Web score - 15808
Video editing - 6673
Photo editing - 23714
Data manipulation - 13815
Writing score - 18234
Submit your benchmark results

Recent User Tests

The latest benchmark tests that have been submitted by users
Xiaomi Mi 9 SE
DateBenchmarkResult
📘 2026-08-31 (hoover)AnTuTu 11441305
📘 2026-07-03 (artemy)AnTuTu 11434470
📘 2026-03-18 (Vladimir)AnTuTu 11434173
Add View all (3)
Xiaomi 15T
DateBenchmarkResult
📘 2026-03-31 (chebypeli100500)AnTuTu 111926611
📘 2026-03-15 (Bers2409)AnTuTu 112029273
📘 2026-01-24 (8arusadar)AnTuTu 111940768
📘 2025-12-09 (Darwish)AnTuTu 111881055
📘 2025-11-29 (Viktor)AnTuTu 111939706
Add View all (16)

Memory

RAM
RAM size 6 GB 12 GB
Memory type LPDDR4X LPDDR5X
Memory clock 1866 MHz -
Channels 2 4
Storage
Storage size 64 GB 256 GB
Storage type UFS 2.1 UFS 4.1
Memory card No No

Software

Operating system Android 9.0 (Can be upgraded to Android 11.0) Android 15 (Can be upgraded to Android 16)
ROM MIUI 12 HyperOS 3.0
OS size 19 GB 33 GB
OS updates - 5 years
Security updates - 5 years

Battery

Capacity 3070 mAh 5500 mAh
Max charge power 18 W 67 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No No
Bypass charging - No
Fast charging Yes, Quick Charge 4 (50% in 30 min) Yes (69% in 30 min)
Full charging time 1:27 hr 0:51 hr
Battery cycles - 1600 cycles
Battery life tests
Web browsing 05:40 hr 11:09 hr
Watching video 10:32 hr 14:55 hr
Gaming 03:52 hr 06:40 hr
Standby 83 hr 125 hr
General battery life
Mi 9 SE
16:19 hr
Xiaomi 15T +61%
26:15 hr
Add your battery life

Main camera

Matrix 48 megapixels 50 megapixels
Image resolution 8000 x 6000 8192 x 6144
Zoom Optical, 2x Optical, 2x
Flash Dual LED Dual LED
Stabilization Digital Optical
8K video recording No No
4K video recording Up to 30FPS Up to 60FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 960 FPS (720p) 240 FPS (1080p)
Angle of widest lens 123° 120°
Lenses 1) Standard: 48 MP
2) Telephoto: 8 MP
3) Ultrawide: 13 MP
1) Standard: 50 MP
2) Telephoto: 50 MP
3) Ultrawide: 12 MP
Camera features - Bokeh mode
- Pro mode		 - Bokeh mode
- Pro mode
- RAW support
Standard lens
Image resolution 48 MP 50 MP
Aperture f/1.8 f/1.7
Focal length 27 mm 23 mm
Sensor Sony IMX586 Omnivision OV50 Light Hunter 800
Sensor size 1/2" (≈ 0.5 inch) 1/1.55" (≈ 0.65 inch)
Pixel size 0.8 micron 1 micron
Autofocus Phase autofocus Phase autofocus
Stabilization Digital Optical
Telephoto lens
Image resolution 8 MP 50 MP
Aperture f/2.4 f/1.9
Focal length 52 mm 46 mm
Sensor Omnivision OV8856 Samsung S5KJN5
Sensor size 1/4" (≈ 0.25 inch) 1/2.76" (≈ 0.36 inch)
Pixel size 1.12 micron 0.64 micron
Stabilization Digital Digital
Ultra-wide lens
Image resolution 13 MP 12 MP
Aperture f/2.4 f/2.2
Focal length - 15 mm
Sensor Samsung S5K3L6 OmniVision OV13B
Sensor size 1/3.1" (≈ 0.32 inch) 1/3.06" (≈ 0.33 inch)
Pixel size 1.12 micron 1.12 micron
Stabilization Digital Digital

Selfie camera

Megapixels 20 megapixels 32 megapixels
Image resolution 5120 x 3840 6560 x 4928
Aperture f/2.0 f/2.2
Focal length 18 mm 21 mm
Sensor Sony IMX576 Samsung KD1S5KKD1
Sensor size 1/2.78" (≈ 0.36 inch) 1/3.44" (≈ 0.29 inch)
Pixel size 0.9 micron 0.64 micron
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 FPS 2160p (4K) at 30 FPS
Depth sensor (TOF 3D) No No

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 a/b/g/n/ac) 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 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
- USB-Host mode
- OTG		 - Charging
- USB-Storage mode
- OTG
DisplayPort - No
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo, QZSS
NFC* Yes Yes
Infrared port Yes Yes
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No Yes
Hybrid slot No No
LTE Cat* 15 -
5G support No Yes

Sound

Speakers Mono Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos No Yes
Speakers test
Max loudness
Mi 9 SE
81.5 dB
Xiaomi 15T +13%
92.2 dB

Other

Category Mid-range Flagship
Announced February 2019 September 2025
Release date March 2019 September 2025
Launch price (MSRP) $400 $650
Successor - Xiaomi 15T -
SAR (head) 1.39 W/kg -
SAR (body) 1.39 W/kg -
Sensors - Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint		 - Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger - Not included
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

After analyzing all the data, we think that the Xiaomi 15T is definitely a better buy.

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