Home Phone comparison Realme 15 5G and Vivo X300 - Which is better?

Realme 15 5G vs Vivo X300

70 out 100
Realme 15 5G
VS
92 out 100
Vivo X300
Realme 15 5G
Vivo X300

Compared 2 smartphones : Realme 15 5G Manufactured in July, 2025, with display 6.8 with chipsetMediaTek Dimensity 7300 Plus, vs Vivo X300, Manufactured in October, 2025with 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 15 5G
  • Larger display: 6.8in
  • Higher refresh rate: 144Hz
  • Lighter design: 187g vs 190g
  • Higher battery capacity: 7000mAh vs 6040mAh
Reasons to choose Vivo X300
  • Higher pixel density: 460ppi
  • 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 15 5G 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
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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 15 5G
vs
Vivo X300

Display

Display quality comparison
Type OLED AMOLED
Size 6.8 in 6.31 in
Resolution 1280x2800 pixels 1216x2640 pixels
Aspect ratio 19.5:9 19.5:9
Pixel density 453 ppi 460 ppi
Refresh rate 144 Hz 120 Hz
Adaptive refresh rate Yes Yes (1-120 Hz)
Max brightness 1800 nits 2000 nits
HDR support Yes, HDR10+ Yes, Dolby Vision
Touch Sampling Rate 240 Hz 300 Hz
Screen-to-body ratio 91.9 % 90.3 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 162.27 mm (6.39 in) 150.57 mm (5.93 in)
Width 76.16 mm (3 in) 71.92 mm (2.83 in)
Thickness 7.66 mm (0.3 in) 7.95 mm (0.31 in)
Weight 187 g (6.6 oz) 190 g (6.7 oz)
Water resistance IP68 IP69
Cooling system n/a Vapor chamber
Back panel n/a Glass
Frame Plastic Metal
Colors - Silver
- Green
- Purple		 - Black
- Blue
- Red
- Pink
- Purple
Fingerprint sensor Yes, In-Display Yes, In-Display
Screen-to-body ratio
Realme 15 5G
91.9 %
Vivo X300
90.3 %

Performance

Testing Realme 15 5G and Vivo X300 In benchmarks
Processor
Chipset MediaTek Dimensity 7300 Plus MediaTek Dimensity 9500
Max Frequency 2600 MHz 4210 MHz
CPU Cores 8 (4 + 4) 8 (1 + 3 + 4)
Architecture - 4/2 (Cortex-A55)
- 4/2.5 (Cortex-A78)		 - 4/2.7 (C1-Pro)
- 3/3.5 (C1-Premium)
- 1/4.21 (C1-Ultra)
Process TSMC TSMC
Transistor Size 4 nm 3 nm
Neural Processor MediaTek APU 655 MediaTek NPU 990
Graphics Mali-G615 MP2 Mali-G1 Ultra MP12
GPU Cores 256 1536
GPU Frequency 1047 MHz 1716 MHz
FLOPS 536.1 GFLOPS 5271.5 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Realme 15 5G
1014
Vivo X300
3383
Geekbench 6 (Multi-Core)
Realme 15 5G
2916
Vivo X300
10099
Geekbench 6 (Single-Core)10143383
Geekbench 6 (Multi-Core)291610099
Geekbench Compute (GPU)249725462
Sources: Geekbench v6 [Realme 15 5G], [Vivo X300]
AnTuTu 10
AnTuTu 10
Realme 15 5G
728221
Vivo X300
3367414
CPU212437957632
GPU1490321342611
Memory185085448412
UX181667618759
NanoReview Score7282213367414

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 3.1UFS 4.1
Memory CardNoNo

Software

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

Battery

Volume 7000 mAh 6040 mAh
Max Charging Power 80 W 90 W
Battery Type Li-ion Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (40 W)
Reverse Charging No 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 Dual LED Dual LED
Stabilization Optical Optical
8K Recording No No
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 n/a 240 fps (1080p)
Wide-angle lens 112 ° 119 °
Lenses count Standard: 50 MP
Ultra-wide: 8 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 length24 mm23 mm
SensorSony IMX896Samsung ISOCELL HPB
Sensor size1/21/1.4
Pixel sizen/a0.56 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
Matrix8 MP50 MP
Aperturef/2.2f/2.0
Focal length16 mm15 mm
Sensorn/aSamsung S5KJN1
Sensor sizen/a1/2.76
Pixel sizen/a0.64 μm
StabilizationDigitalDigital

Front camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Aperture n/a f/2.0
Sensor CMOS Samsung S5KJN1
Sensor size n/a 1/2.76
Pixel size n/a 0.64 μm
Autofocus n/a Phase autofocus
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
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* No 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 July, 2025 yr October, 2025 yr
Release Date July, 2025 yr October, 2025 yr
MSRP ($) 280 699
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes, 80 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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