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

Nothing Phone (3a) vs Xiaomi 15T

69 out 100
Nothing Phone (3a)
VS
82 out 100
Xiaomi 15T
Nothing Phone (3a)
Xiaomi 15T

Compared 2 smartphones : Nothing Phone (3a) Manufactured in March, 2025, with display 6.77 with chipsetQualcomm Snapdragon 7s Gen 3, 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 Nothing Phone (3a)
    Reasons to choose Xiaomi 15T
    • Larger display: 6.83in
    • Higher pixel density: 447ppi
    • Lighter design: 194g vs 201g
    • Higher battery capacity: 5500mAh vs 5000mAh
    • Newer Bluetooth version: 6.0 vs 5.4
    • Supports Dolby Atmos
    • Infrared port
    • Built-in eSIM

    Versions

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

    Review

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

    Display

    Display quality comparison
    Type AMOLED AMOLED
    Size 6.77 in 6.83 in
    Resolution 1080x2392 pixels 1280x2772 pixels
    Aspect ratio n/a 19.5:9
    Pixel density 387 ppi 447 ppi
    Refresh rate 120 Hz 120 Hz
    Adaptive refresh rate Yes (60-120 Hz) Yes
    Max brightness 1300 nits n/a
    HDR support Yes HDR10+ Yes, Dolby Vision
    Touch Sampling Rate n/a 480 Hz
    Screen-to-body ratio 88 % 89.9 %
    Features - DCI-P3
    - Always-On Display
    - DC dimming    		 - DCI-P3
    - Always-On Display
    - DC dimming
    Display test
    Peak brightness (auto)
    Nothing Phone (3a)
    1272 nits
    Xiaomi 15T
    n/a

    Design & Build

    Design and ergonomics comparison
    Height 163.52 mm (6.44 in) 163.2 mm (6.43 in)
    Width 77.5 mm (3.05 in) 78 mm (3.07 in)
    Thickness 8.35 mm (0.33 in) 7.5 mm (0.3 in)
    Weight 201 g (7.09 oz) 194 g (6.84 oz)
    Water resistance IP64 IP68
    Cooling system Vapor chamber Vapor chamber
    Frame n/a Plastic
    Colors - White
    - Black
    - Blue    		 - Black
    - Gray
    - Rose Gold
    Fingerprint sensor Yes In-Display Yes, In-Display
    Screen-to-body ratio
    Nothing Phone (3a)
    88 %
    Xiaomi 15T
    89.9 %

    Performance

    Testing Nothing Phone (3a) and Xiaomi 15T In benchmarks
    Processor
    Chipset Qualcomm Snapdragon 7s Gen 3 MediaTek Dimensity 8400 Ultra
    Max Frequency 2500 MHz 3250 MHz
    CPU Cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
    Architecture - 4/1.8 (Kryo Silver (Cortex-A520))
    - 3/2.4 (Kryo Gold (Cortex-A720))
    - 1/2.5 (Kryo Prime (Cortex-A720))    		 - 4/2.1 (Cortex-A725)
    - 3/3 (Cortex-A725)
    - 1/3.25 (Cortex-A725)
    Process TSMC TSMC
    Transistor Size 4 nm 4 nm
    Neural Processor Yes MediaTek NPU 880
    Graphics Adreno 810 Mali-G720 MP7
    GPU Cores 256 896
    GPU Frequency 1050 MHz 1300 MHz
    FLOPS 537.6 GFLOPS 2329.6 GFLOPS
    GeekBench v6
    Geekbench 6 (Single-Core)
    Nothing Phone (3a)
    1178
    Xiaomi 15T
    1603
    Geekbench 6 (Multi-Core)
    Nothing Phone (3a)
    3214
    Xiaomi 15T
    6413
    Geekbench 6 (Single-Core)11781603
    Geekbench 6 (Multi-Core)32146413
    Geekbench Compute (GPU)443511228
    Sources: Geekbench v6 [Nothing Phone (3a)], [Xiaomi 15T]
    AnTuTu 10
    AnTuTu 10
    Nothing Phone (3a)
    708353
    Xiaomi 15T
    1872827
    CPU215621448609
    GPU197715683486
    Memory145649396486
    UX149368344246
    NanoReview Score7083531872827

    Memory

    RAM
    RAM Size - 8 GB
    - 12 GB    		 12 GB
    Memory Type LPDDR4X LPDDR5X
    Memory Frequency 2133 MHz n/a
    Channels 4 4
    Storage
    Storage Capacity- 128 GB
    - 256 GB    		256 GB
    Storage TypeUFS 2.2UFS 4.1
    Memory CardNoNo

    Software

    OS Android 15 Android 15
    UI Skin Nothing OS 3.1 HyperOS 2.0

    Battery

    Volume 5000 mAh 5500 mAh
    Max Charging Power 50 W 67 W
    Battery Type Li-Po Li-Po
    Removable No No
    Wireless Charging No No
    Reverse Charging No No
    Fast Charging Yes (61% in 30 min) Yes (50% in 22 min)
    Full Charge Time 1:06 h 0:50 h
    Battery Life Test
    Battery Life
    Nothing Phone (3a)
    25:03
    Xiaomi 15T
    n/a
    Web Browsing08:06 hn/a
    Video Playback16:25 hn/a
    Games05:49 hn/a
    Standby Mode131 hn/a

    Main camera

    Matrix 50 MP 50 MP
    Photo resolution 8192x6144 pixels 8192x6144 pixels
    Zoom Optical, 2x Optical, 2x
    Flash LED Dual LED
    Stabilization Optical 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 240 fps (720p) 240 fps (1080p)
    Wide-angle lens 120 ° 120 °
    Lenses count Standard: 50 MP
    Telephoto: 50 MP
    Ultra-wide: 8 MP    		 Standard: 50 MP
    Telephoto: 50 MP
    Ultra-wide: 12 MP
    Features - Bokeh effect
    - Pro mode    		 - Bokeh effect
    - Pro mode
    - RAW support
    Main lens
    Matrix50 MP50 MP
    Aperturef/1.9f/1.7
    Focal length24 mm23 mm
    SensorSony LYT-600Omnivision OV50 Light Hunter 800
    Sensor size1/1.561/1.55
    Pixel size1 μm1 μm
    AutofocusPhase autofocusPhase autofocus
    StabilizationOpticalOptical
    Telephoto
    Matrix50 MP50 MP
    Aperturef/2.6f/1.9
    Focal length50 mm46 mm
    Sensorn/aSamsung S5KJN5
    Sensor size1/2.741/2.76
    Pixel size0.64 μm0.64 μm
    StabilizationOpticalDigital
    Ultra-wide lens
    Matrix8 MP12 MP
    Aperturef/2.2f/2.2
    Focal length15 mm15 mm
    SensorSony IMX355n/a
    Sensor size1/4.01/3.06
    Pixel size1.12 μm1.12 μm
    StabilizationDigitalDigital

    Front camera

    Matrix 32 MP 32 MP
    Aperture f/2.2 f/2.2
    Focal length 22 mm 21 mm
    Sensor CMOS CMOS
    Sensor size 1/3.44 1/3.44
    Pixel size n/a 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 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 6.0
    Bluetooth features LE 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 No No
    GPS - GPS
    - GLONASS
    - Galileo
    - QZSS    		 - 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 850/900/1800/1900GSM 2/3/5/8
    3G BandsUMTS 1, 2, 4, 5, 6, 8, 19WCDMA B1/2/4/5/8/6/19
    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/B13/B17/B18/B19/B20/B26/B28/B32/B66/B71)
    5G SupportYesYes

    Sound

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

    Other

    Class Mid-range Mid-range
    Announced March, 2025 yr September, 2025 yr
    Release Date March, 2025 yr September, 2025 yr
    Launch Price ($) 329 n/a
    MSRP ($) 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 No 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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