Home Phone comparison Nothing Phone (3a) Pro and Xiaomi 15 - Which is better?

Nothing Phone (3a) Pro vs Xiaomi 15

70 out 100
Nothing Phone (3a) Pro
VS
93 out 100
Xiaomi 15
Nothing Phone (3a) Pro
Xiaomi 15

Compared 2 smartphones : Nothing Phone (3a) Pro Manufactured in March, 2025, with display 6.77 with chipsetQualcomm Snapdragon 7s Gen 3, vs Xiaomi 15, Manufactured in October, 2024 with chipsetQualcomm Snapdragon 8 Elite. 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 Nothing Phone (3a) Pro
  • Larger display: 6.77in
Reasons to choose Xiaomi 15
  • Higher pixel density: 460ppi
  • Lighter design: 191g vs 211g
  • Higher battery capacity: 5400mAh vs 5000mAh
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Infrared port
  • Includes charger

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 12/256 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Nothing Phone (3a) Pro and Xiaomi 15
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:
Nothing Phone (3a) Pro
vs
Xiaomi 15

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.77 in 6.36 in
Resolution 1080x2392 pixels 1200x2670 pixels
Aspect ratio n/a 20:9
Pixel density 387 ppi 460 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (1-120 Hz)
Max brightness 1300 nits 1500 nits
HDR support Yes HDR10+ Yes Dolby Vision
Touch Sampling Rate n/a 300 Hz
Screen-to-body ratio 88 % 90.1 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Nothing Phone (3a) Pro
1300 nits
Xiaomi 15
1508 nits
sRGB gamutn/a99.5 %
PWM (Flicker)n/a120 Hz
Response timen/a1 ms
Contrastn/a∞ Infinite
Sources: NotebookCheck [Xiaomi 15]

Design & Build

Design and ergonomics comparison
Height 163.52 mm (6.44 in) 152.3 mm (6 in)
Width 77.5 mm (3.05 in) 71.2 mm (2.8 in)
Thickness 8.39 mm (0.33 in) 8.08 mm (0.32 in)
Weight 211 g (7.44 oz) 191 g (6.74 oz)
Water resistance IP64 IP68
Cooling system Vapor chamber Vapor chamber
Back panel n/a Glass
Frame n/a Metal
Colors - Black
- Gray		 - White
- Black
- Silver
- Green
- Purple
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Nothing Phone (3a) Pro
88 %
Xiaomi 15
90.1 %

Performance

Testing Nothing Phone (3a) Pro and Xiaomi 15 In benchmarks
Processor
Chipset Qualcomm Snapdragon 7s Gen 3 Qualcomm Snapdragon 8 Elite
Max Frequency 2500 MHz 4320 MHz
CPU Cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4/1.8 (Kryo Silver (Cortex-A520))
- 3/2.4 (Kryo Gold (Cortex-A720))
- 1/2.5 (Kryo Prime (Cortex-A720))		 - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
Process TSMC TSMC
Transistor Size 4 nm 3 nm
Neural Processor Yes Hexagon
Graphics Adreno 810 Adreno 830
GPU Cores 256 1536
GPU Frequency 1050 MHz 1100 MHz
FLOPS 537.6 GFLOPS 3379.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Nothing Phone (3a) Pro
1182
Xiaomi 15
2934
Geekbench 6 (Multi-Core)
Nothing Phone (3a) Pro
3357
Xiaomi 15
8762
Geekbench 6 (Single-Core)11822934
Geekbench 6 (Multi-Core)33578762
Geekbench Compute (GPU)445924507
Sources: Geekbench v6 [Nothing Phone (3a) Pro], [Xiaomi 15]
AnTuTu 10
AnTuTu 10
Nothing Phone (3a) Pro
750673
Xiaomi 15
2620144
CPU273000584725
GPU1920891142381
Memory135075519406
UX150509373632
NanoReview Score7506732620144
3DMark Wild Life
3DMark Wild Life
Nothing Phone (3a) Pro
n/a
Xiaomi 15
20823
Sources: 3DMark [Xiaomi 15]
PCMark 3.0
PCMark 3.0
Nothing Phone (3a) Pro
n/a
Xiaomi 15
18292
Writing scoren/a22508
Web scoren/a18826
Video editingn/a8060
Data manipulationn/a14605
NanoReview Scoren/a18292

Memory

RAM
RAM Size - 8 GB
- 12 GB		 - 12 GB
- 16 GB
Memory Type LPDDR5 LPDDR5X
Memory Frequency 3200 MHz n/a
Channels 4 2
Storage
Storage Capacity- 128 GB
- 256 GB		- 256 GB
- 512 GB
- 1024 GB
Storage Typen/aUFS 4.0
Memory CardNoNo

Software

OS Android 15 Android 15
OS Size n/a 21 GB
UI Skin Nothing OS 3.1 HyperOS 2.0

Battery

Volume 5000 mAh 5400 mAh
Max Charging Power 50 W 90 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (50 W)
Reverse Charging No Yes (Wireless)
Fast Charging Yes (60% in 15 min) Yes (83% in 30 min)
Full Charge Time 1:05 h 0:45 h
Battery Life Test
Battery Life
Nothing Phone (3a) Pro
24:09
Xiaomi 15
31:54
Web Browsing08:09 h13:20 h
Video Playback16:21 h19:22 h
Games05:48 h07:10 h
Standby Mode120 h150 h

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Optical, 3x Optical, 2.6x
Flash LED Dual LED
Stabilization Optical Optical
8K Recording No Yes (Up to 30 fps)
4K Recording Yes (Up to 30 fps) Yes (Up to 120 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (720p) 1920 fps (720p)
Wide-angle lens 120 ° 115 °
Lenses count Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 8 MP		 Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP50 MP
Aperturef/1.9f/1.6
Focal length24 mm23 mm
SensorSony LYT-600OmniVision OVX9000 Light Fusion 900
Sensor size1/1.561/1.31
Pixel size1 μm1.2 μm
AutofocusPhase autofocus (Dual Pixel)Laser autofocus
StabilizationOpticalOptical
Telephoto
Matrix50 MP50 MP
Aperturef/2.6f/2.0
Focal length70 mm60 mm
Sensorn/aSamsung S5KJN5
Sensor size1/1.951/2.76
Pixel size0.8 μm0.64 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/2.2
Focal length15 mm14 mm
SensorSony IMX355Samsung S5KJN1
Sensor size1/4.01/2.76
Pixel size1.12 μm0.64 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Nothing Phone (3a) Pro
n/a
Xiaomi 15
150
Video quality
Nothing Phone (3a) Pro
n/a
Xiaomi 15
133
Overall camera score
Nothing Phone (3a) Pro
n/a
Xiaomi 15
147
Bokehn/a75
Previewn/a87
Zoomn/a152
Sources: DxOMark [Xiaomi 15]

Front camera

Matrix 50 MP 32 MP
Photo resolution 8192x6144 pixels 6528x4896 pixels
Aperture f/2.2 f/2.0
Focal length 24 mm 22 mm
Sensor n/a Omnivision OV32B
Sensor size 1/2.76 1/3.14
Pixel size n/a 0.7 μm
Autofocus n/a No
Stabilization Digital Digital
Video resolution 2160p (4K) at 30 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
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 5.4 5.4
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort No Yes
GPS - GPS
- GLONASS
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Yes Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesYes
Hybrid SlotNoNo
2G BandsGSM 850/900/1800/1900GSM B2/B3/B5/B8
3G BandsUMTS 1, 2, 4, 5, 6, 8, 19WCDMA B1/B2/B4/B5/B6/B8/B19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B38/B40/B41/B42/B48/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B34/B38/B39/B40/B41/B42/B48/B66)
5G SupportYesYes

Sound

Speakers Stereo Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos n/a Yes
Speaker Test
Max Volume
Nothing Phone (3a) Pro
n/a
Xiaomi 15
91.3 dB

Other

Class Mid-range Flagship
Announced March, 2025 yr October, 2024 yr
Release Date March, 2025 yr October, 2024 yr
Launch Price ($) 459 757
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included No Yes 90 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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

Survey

Which smartphone would you pick?
2 (100%)
0 (0%)
Total Votes: 2

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