Home Phone comparison Samsung Galaxy A40 and Xiaomi 15T - Which is better?

Samsung Galaxy A40 vs Xiaomi 15T

37 out 100
Samsung Galaxy A40
VS
82 out 100
Xiaomi 15T
Samsung Galaxy A40
Xiaomi 15T

Compared 2 smartphones : Samsung Galaxy A40 Manufactured in April, 2019, with display 5.9 with chipsetSamsung Exynos 7 Octa 7904, vs Xiaomi 15T, Manufactured in September, 2025 with 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 Samsung Galaxy A40
  • Lighter design: 140g vs 194g
Reasons to choose Xiaomi 15T
  • Larger display: 6.83in
  • Higher pixel density: 447ppi
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 5500mAh vs 3100mAh
  • Newer Bluetooth version: 6.0 vs 5
  • Infrared port
  • Built-in eSIM

Versions

Available versions and configurations
Memory Options - 4/64 GB
- 4/128 GB		 - 12/256 GB
- 12/512 GB

Review

Key Specs Samsung Galaxy A40 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:
Samsung Galaxy A40
vs
Xiaomi 15T

Display

Display quality comparison
Type Super AMOLED AMOLED
Size 5.9 in 6.83 in
Resolution 1080x2340 pixels 1280x2772 pixels
Aspect ratio 19.5:9 19.5:9
Pixel density 437 ppi 447 ppi
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes
Max brightness 548 nits n/a
HDR support No Yes, Dolby Vision
Touch Sampling Rate n/a 480 Hz
Screen-to-body ratio 85.5 % 89.9 %
Features n/a - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy A40
543 nits
Xiaomi 15T
n/a
sRGB gamut142.6 %n/a
PWM (Flicker)245 Hzn/a
Response time9 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Samsung Galaxy A40]

Design & Build

Design and ergonomics comparison
Height 144.4 mm (5.69 in) 163.2 mm (6.43 in)
Width 69.2 mm (2.72 in) 78 mm (3.07 in)
Thickness 7.9 mm (0.31 in) 7.5 mm (0.3 in)
Weight 140 g (4.94 oz) 194 g (6.84 oz)
Water resistance No 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 rear Yes, In-Display
Screen-to-body ratio
Samsung Galaxy A40
85.5 %
Xiaomi 15T
89.9 %

Performance

Testing Samsung Galaxy A40 and Xiaomi 15T In benchmarks
Processor
Chipset Samsung Exynos 7 Octa 7904 MediaTek Dimensity 8400 Ultra
Max Frequency 1770 MHz 3250 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/1.6 (Cortex-A53)
- 2/1.8 (Cortex-A73)		 - 4/2.1 (Cortex-A725)
- 3/3 (Cortex-A725)
- 1/3.25 (Cortex-A725)
Process Samsung TSMC
Transistor Size 14 nm 4 nm
Neural Processor No MediaTek NPU 880
Graphics Mali-G71 MP2 Mali-G720 MP7
GPU Cores 32 896
GPU Frequency 770 MHz 1300 MHz
FLOPS 49.3 GFLOPS 2329.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy A40
486
Xiaomi 15T
1603
Geekbench 6 (Multi-Core)
Samsung Galaxy A40
1530
Xiaomi 15T
6413
Geekbench 6 (Single-Core)4861603
Geekbench 6 (Multi-Core)15306413
Geekbench Compute (GPU)n/a11228
Sources: Geekbench v6 [Xiaomi 15T]
AnTuTu 10
AnTuTu 10
Samsung Galaxy A40
156332
Xiaomi 15T
1872827
CPU55233448609
GPU21549683486
Memory41648396486
UX37902344246
NanoReview Score1563321872827
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy A40
404
Xiaomi 15T
n/a
Max Surface Temp.44.8 °Cn/a
Stability98 %n/a
Graphics Test2 fpsn/a
Graphics Score404n/a
Sources: 3DMark [Samsung Galaxy A40]

Memory

RAM
RAM Size 4 GB 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz n/a
Channels 2 4
Storage
Storage Capacity64 GB256 GB
Storage TypeeMMC 5.1UFS 4.1
Memory CardMicroSDNo

Software

OS Android 9.0 (Upgradeable to Android 11) Android 15
OS Size 14.6 GB n/a
UI Skin One UI 3.1 HyperOS 2.0

Battery

Volume 3100 mAh 5500 mAh
Max Charging Power 15 W 67 W
Battery Type Li-ion Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes Samsung Adaptive Fast Charge (50% in 40 min) Yes (50% in 22 min)
Full Charge Time 1:45 h 0:50 h
Battery Life Test
Battery Life
Samsung Galaxy A40
15:48
Xiaomi 15T
n/a
Web Browsing05:59 hn/a
Video Playback09:54 hn/a
Games04:04 hn/a
Standby Mode77 hn/a

Main camera

Matrix 16 MP 50 MP
Photo resolution 4616x3464 pixels 8192x6144 pixels
Zoom Digital Optical, 2x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No No
4K Recording No Yes (Up to 60 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion 120 fps (720p) 240 fps (1080p)
Wide-angle lens 123 ° 120 °
Lenses count Standard: 16 MP
Ultra-wide: 5 MP		 Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix16 MP50 MP
Aperturef/1.7f/1.7
Focal length26 mm23 mm
Sensorn/aOmnivision OV50 Light Hunter 800
Sensor sizen/a1/1.55
Pixel sizen/a1 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
Matrix5 MP12 MP
Aperturef/2.2f/2.2
Focal length13 mm15 mm
Sensor sizen/a1/3.06
Pixel sizen/a1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 25 MP 32 MP
Photo resolution 5984x4140 pixels n/a
Aperture f/2.0 f/2.2
Focal length 25 mm 21 mm
Sensor CMOS CMOS
Sensor size 1/2.8 1/3.44
Pixel size 0.9 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 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		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 6.0
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, 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		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G BandsGSM 850, GSM 900, GSM 1800, GSM 1900GSM 2/3/5/8
3G BandsHSDPA 850, HSDPA 900, HSDPA 1900, HSDPA 2100WCDMA B1/2/4/5/8/6/19
LTE Bands*LTE (B800/B850/B900/B1700/B1800/B1900/B2100/B2300/B2500)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66/B71)
LTE category12n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Samsung Galaxy A40
82.6 dB
Xiaomi 15T
n/a

Other

Class Mid-range Mid-range
Announced April, 2019 yr September, 2025 yr
Release Date April, 2019 yr September, 2025 yr
Launch Price ($) 250 n/a
MSRP ($) 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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