Home Phone comparison Realme 15T and Vivo X300 - Which is better?

Realme 15T vs Vivo X300

66 out 100
Realme 15T
VS
92 out 100
Vivo X300
Realme 15T
Vivo X300

Compared 2 smartphones : Realme 15T Manufactured in September, 2025, with display 6.57 with chipsetMediaTek Dimensity 6400 Max, vs Vivo X300, Manufactured in October, 2025 with chipsetMediaTek Dimensity 9500. 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 Realme 15T
  • Larger display: 6.57in
  • Lighter design: 181g vs 190g
  • Higher battery capacity: 7000mAh vs 6040mAh
Reasons to choose Vivo X300
  • Higher pixel density: 460ppi
  • Newer Bluetooth version: 5.4 vs 5.3
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM

Versions

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

Review

Key Specs Realme 15T and Vivo X300
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:
Realme 15T
vs
Vivo X300

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.57 in 6.31 in
Resolution 1080x2372 pixels 1216x2640 pixels
Aspect ratio 20:9 19.5:9
Pixel density 401 ppi 460 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (1-120 Hz)
Max brightness 4000 nits 2000 nits
HDR support No Yes, Dolby Vision
Touch Sampling Rate 240 Hz 300 Hz
Screen-to-body ratio 87.6 % 90.3 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 158.36 mm (6.23 in) 150.57 mm (5.93 in)
Width 75.19 mm (2.96 in) 71.92 mm (2.83 in)
Thickness 7.79 mm (0.31 in) 7.95 mm (0.31 in)
Weight 181 g (6.38 oz) 190 g (6.7 oz)
Water resistance IP69 IP69
Cooling system n/a Vapor chamber
Back panel Plastic Glass
Frame Plastic Metal
Colors - Silver
- Gray
- Blue		 - Black
- Blue
- Red
- Pink
- Purple
Fingerprint sensor Yes, In-Display Yes, In-Display
Screen-to-body ratio
Realme 15T
87.6 %
Vivo X300
90.3 %

Performance

Testing Realme 15T and Vivo X300 In benchmarks
Processor
Chipset MediaTek Dimensity 6400 Max MediaTek Dimensity 9500
Max Frequency 2500 MHz 4210 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/2 (Cortex-A55)
- 2/2.5 (Cortex-A76)		 - 4/2.7 (C1-Pro)
- 3/3.5 (C1-Premium)
- 1/4.21 (C1-Ultra)
Process TSMC TSMC
Transistor Size 6 nm 3 nm
Neural Processor Yes MediaTek NPU 990
Graphics Mali-G57 MP2 Mali-G1 Ultra MP12
GPU Cores 64 1536
GPU Frequency 1072 MHz 1716 MHz
FLOPS 137.2 GFLOPS 5271.5 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Realme 15T
808
Vivo X300
3383
Geekbench 6 (Multi-Core)
Realme 15T
2046
Vivo X300
10099
Geekbench 6 (Single-Core)8083383
Geekbench 6 (Multi-Core)204610099
Geekbench Compute (GPU)142425462
Sources: Geekbench v6 [Realme 15T], [Vivo X300]
AnTuTu 10
AnTuTu 10
Realme 15T
605158
Vivo X300
3367414
CPU223513957632
GPU480521342611
Memory167188448412
UX166405618759
NanoReview Score6051583367414

Memory

RAM
RAM Size 8 GB 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz 5333 MHz
Channels 2 4
Storage
Storage Capacity128 GB256 GB
Storage TypeUFS 2.2UFS 4.1
Memory CardMicroSDNo

Software

OS Android 15 Android 16
UI Skin Realme UI 6.0 OriginOS 6

Battery

Volume 7000 mAh 6040 mAh
Max Charging Power 60 W 90 W
Battery Type Silicon Carbon (Si/C) Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (40 W)
Reverse Charging Yes Yes, (Wireless)
Fast Charging Yes Yes (73% in 30 min)
Full Charge Time n/a 0:46 h

Main camera

Matrix 50 MP 200 MP
Photo resolution 8192x6144 pixels n/a
Zoom Digital Optical, 3x
Flash LED Dual LED
Stabilization Optical Optical
8K Recording No No
4K Recording No Yes (Up to 120 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 120 fps (720p) 240 fps (1080p)
Wide-angle lens n/a 119 °
Lenses count Standard: 50 MP
Depth: 2 MP		 Standard: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP200 MP
Aperturef/1.8f/1.68
Focal length27 mm23 mm
SensorOmnivision OV50D40 Light Hunter 400Samsung ISOCELL HPB
Sensor size1/2.881/1.4
Pixel size0.61 μm0.56 μm
AutofocusPhase autofocusLaser autofocus
StabilizationOpticalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/2.6
Focal lengthn/a70 mm
Sensorn/aSony LYT-602
Sensor sizen/a1/1.95
Pixel sizen/a0.8 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrixn/a50 MP
Aperturen/af/2.0
Focal lengthn/a15 mm
Sensorn/aSamsung S5KJN1
Sensor sizen/a1/2.76
Pixel sizen/a0.64 μm
Stabilizationn/aDigital

Front camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Aperture f/1.8 f/2.0
Focal length 27 mm n/a
Sensor Omnivision OV50D40 Light Hunter 400 Samsung S5KJN1
Sensor size 1/2.88 1/2.76
Pixel size 0.61 μm 0.64 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) 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 5.3 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
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Varies by region Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G BandsGSM 850/900/1800MHzGSM 850/900/1800/1900 MHz
3G BandsWCDMA 1/5/8WCDMA B1/B2/B4/B5/B6/B8/B19
LTE Bands*LTE (B1/B3/B5/B8/B40/B41)LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B25/B26/B28/B34/B38/B39/B40/B41/B42/B43/B48/B66)
5G SupportYesYes

Sound

3.5 mm Jack No No
FM Radio No No
Dolby Atmos n/a No

Other

Class Mid-range Flagship
Announced September, 2025 yr October, 2025 yr
Release Date September, 2025 yr October, 2025 yr
MSRP ($) 230 699
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes, 60 W Yes, 90 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Vivo X300 the clear winner in this comparison.

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