Home Phone comparison Vivo iQOO 12 and Xiaomi 15T - Which is better?

Vivo iQOO 12 vs Xiaomi 15T

81 out 100
Vivo iQOO 12
VS
82 out 100
Xiaomi 15T
Vivo iQOO 12
Xiaomi 15T

Compared 2 smartphones : Vivo iQOO 12 Manufactured in November, 2023, with display 6.78 with chipsetQualcomm Snapdragon 8 Gen 3, 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 Vivo iQOO 12
  • Higher pixel density: 453ppi
  • Higher refresh rate: 144Hz
  • Includes charger
Reasons to choose Xiaomi 15T
  • Larger display: 6.83in
  • Lighter design: 194g vs 198.5g
  • Higher battery capacity: 5500mAh vs 5000mAh
  • Newer Bluetooth version: 6.0 vs 5.4
  • Supports Dolby Atmos
  • Built-in eSIM

Versions

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

Review

Key Specs Vivo iQOO 12 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
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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:
Vivo iQOO 12
vs
Xiaomi 15T

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.78 in 6.83 in
Resolution 1260x2800 pixels 1280x2772 pixels
Aspect ratio 20:9 19.5:9
Pixel density 453 ppi 447 ppi
Refresh rate 144 Hz 120 Hz
Adaptive refresh rate Yes Yes
Max brightness 3000 nits n/a
HDR support Yes HDR10+ Yes, Dolby Vision
Touch Sampling Rate n/a 480 Hz
Screen-to-body ratio 89.7 % 89.9 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Vivo iQOO 12
1414 nits
Xiaomi 15T
n/a

Design & Build

Design and ergonomics comparison
Height 163.22 mm (6.43 in) 163.2 mm (6.43 in)
Width 75.8 mm (2.98 in) 78 mm (3.07 in)
Thickness 8.1 mm (0.32 in) 7.5 mm (0.3 in)
Weight 198.5 g (7 oz) 194 g (6.84 oz)
Water resistance IP64 IP68
Cooling system Vapor chamber Vapor chamber
Back panel Glass n/a
Frame Metal Plastic
Colors - White
- Black
- Red		 - Black
- Gray
- Rose Gold
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Vivo iQOO 12
89.7 %
Xiaomi 15T
89.9 %

Performance

Testing Vivo iQOO 12 and Xiaomi 15T In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 3 MediaTek Dimensity 8400 Ultra
Max Frequency 3300 MHz 3250 MHz
CPU Cores 8 (1 + 3 + 2 + 2) 8 (1 + 3 + 4)
Architecture - 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)		 - 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 Hexagon MediaTek NPU 880
Graphics Adreno 750 Mali-G720 MP7
GPU Cores 1536 896
GPU Frequency 903-1000 MHz 1300 MHz
FLOPS 2774 GFLOPS 2329.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Vivo iQOO 12
2237
Xiaomi 15T
1603
Geekbench 6 (Multi-Core)
Vivo iQOO 12
6916
Xiaomi 15T
6413
Geekbench 6 (Single-Core)22371603
Geekbench 6 (Multi-Core)69166413
Geekbench Compute (GPU)n/a11228
Sources: Geekbench v6 [Vivo iQOO 12], [Xiaomi 15T]
AnTuTu 10
AnTuTu 10
Vivo iQOO 12
2087940
Xiaomi 15T
1872827
CPU462657448609
GPU902878683486
Memory387756396486
UX334649344246
NanoReview Score20879401872827
3DMark Wild Life
3DMark Wild Life
Vivo iQOO 12
17059
Xiaomi 15T
n/a
Stability76 %n/a
Graphics Test102 fpsn/a
Graphics Score17059n/a
Sources: 3DMark [Vivo iQOO 12]
PCMark 3.0
PCMark 3.0
Vivo iQOO 12
14522
Xiaomi 15T
n/a
Writing score21145n/a
Web score11036n/a
Video editing6543n/a
Data manipulation12430n/a
NanoReview Score14522n/a

Memory

RAM
RAM Size - 12 GB
- 16 GB		 12 GB
Memory Type LPDDR5X LPDDR5X
Channels 4 4
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		256 GB
Storage TypeUFS 4.0UFS 4.1
Memory CardNoNo

Software

OS Android 14 (Upgradeable to Android 15) Android 15
UI Skin Funtouch 15 HyperOS 2.0

Battery

Volume 5000 mAh 5500 mAh
Max Charging Power 120 W 67 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging Yes No
Fast Charging Yes (85% in 15 min) Yes (50% in 22 min)
Full Charge Time 0:20 h 0:50 h
Battery Life Test
Battery Life
Vivo iQOO 12
22:20
Xiaomi 15T
n/a
Web Browsing08:42 hn/a
Video Playback15:33 hn/a
Games05:56 hn/a
Standby Mode98 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Optical, 3x Optical, 2x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 960 fps (1080p) 240 fps (1080p)
Wide-angle lens 119 ° 120 °
Lenses count Standard: 50 MP
Telephoto: 64 MP
Ultra-wide: 50 MP		 Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP50 MP
Aperturef/1.7f/1.7
Focal length23 mm23 mm
SensorOmnivision OV50HOmnivision OV50 Light Hunter 800
Sensor size1/1.31/1.55
Pixel size1.2 μm1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix64 MP50 MP
Aperturef/2.6f/1.9
Focal length70 mm46 mm
SensorOmnivision OV64BSamsung S5KJN5
Sensor size1/2.01/2.76
Pixel size0.7 μm0.64 μm
StabilizationOpticalDigital
Ultra-wide lens
Matrix50 MP12 MP
Aperturef/2.0f/2.2
Focal length15 mm15 mm
SensorSamsung S5KJN1n/a
Sensor size1/2.761/3.06
Pixel size0.64 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 16 MP 32 MP
Photo resolution 4608x3456 pixels n/a
Aperture f/2.5 f/2.2
Focal length n/a 21 mm
Sensor Samsung S5K3P9 CMOS
Sensor size 1/3.1 1/3.44
Pixel size 1 μm 0.64 μm
Autofocus No No
Stabilization No 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 7 (802.11 a/b/g/n/ac/ax/be) 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 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 B1/B2/B4/B5/B8/B6/B19WCDMA B1/2/4/5/8/6/19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66/B71)
LTE category20n/a
5G SupportYesYes

Sound

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

Other

Class Flagship Mid-range
Announced November, 2023 yr September, 2025 yr
Release Date November, 2023 yr September, 2025 yr
Launch Price ($) 625 n/a
MSRP ($) 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 Yes 120 W No
* Attention! Config, frequencies, NFC, and other specs may vary by region.

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