Home Phone comparison Oppo Realme GT3 and Vivo X300 Ultra - Which is better?

Oppo Realme GT3 vs Vivo X300 Ultra

71 out 100
Oppo Realme GT3
VS
94 out 100
Vivo X300 Ultra
Oppo Realme GT3
Vivo X300 Ultra

Compared 2 smartphones : Oppo Realme GT3 Manufactured in March, 2023, with display 6.74 with chipsetQualcomm Snapdragon 8 Plus Gen 1, vs Vivo X300 Ultra, Manufactured in April, 2026 with chipsetQualcomm Snapdragon 8 Elite Gen 5. 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 Oppo Realme GT3
  • Lighter design: 199g vs 232g
Reasons to choose Vivo X300 Ultra
  • Larger display: 6.82in
  • Higher pixel density: 510ppi
  • Higher battery capacity: 6600mAh vs 4600mAh
  • Newer Bluetooth version: 5.4 vs 5.3
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort

Versions

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

Review

Key Specs Oppo Realme GT3 and Vivo X300 Ultra
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:
Oppo Realme GT3
vs
Vivo X300 Ultra

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.74 in 6.82 in
Resolution 1240x2772 pixels 1440x3168 pixels
Aspect ratio 20:9 19.8:9
Pixel density 451 ppi 510 ppi
Refresh rate 144 Hz 144 Hz
Adaptive refresh rate Yes Yes
Max brightness 500 nits 1800 nits
HDR support Yes HDR10+ Yes, Dolby Vision
Screen-to-body ratio 88.3 % 90.3 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Oppo Realme GT3
964 nits
Vivo X300 Ultra
n/a

Design & Build

Design and ergonomics comparison
Height 163.9 mm (6.45 in) 162.98 mm (6.42 in)
Width 75.8 mm (2.98 in) 76.81 mm (3.02 in)
Thickness 8.9 mm (0.35 in) 8.49 mm (0.33 in)
Weight 199 g (7.02 oz) 232 g (8.18 oz)
Water resistance No IP69
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Plastic Metal
Colors - White
- Black		 - Black
- Silver
- Green
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Oppo Realme GT3
88.3 %
Vivo X300 Ultra
90.3 %

Performance

Testing Oppo Realme GT3 and Vivo X300 Ultra In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Plus Gen 1 Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 3190 MHz 4600 MHz
CPU Cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4/2 (Cortex-A510)
- 3/2.75 (Cortex-A710)
- 1/3.2 (Cortex-X2)		 - 6/3.63 (Oryon Gen 3 Performance)
- 2/4.61 (Oryon Gen 3 Prime)
Process TSMC TSMC
Transistor Size 4 nm 3 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 730 n/a
GPU Cores 1024 n/a
GPU Frequency 900 MHz n/a
FLOPS 1843.2 GFLOPS n/a
GeekBench v6
Geekbench 6 (Single-Core)
Oppo Realme GT3
1446
Vivo X300 Ultra
3621
Geekbench 6 (Multi-Core)
Oppo Realme GT3
4021
Vivo X300 Ultra
10653
Geekbench 6 (Single-Core)14463621
Geekbench 6 (Multi-Core)402110653
Sources: Geekbench v6 [Oppo Realme GT3], [Vivo X300 Ultra]
AnTuTu 10
AnTuTu 10
Oppo Realme GT3
1304562
Vivo X300 Ultra
4247433
CPU3361371192014
GPU4646821543938
Memory237717525105
UX266026986376
NanoReview Score13045624247433
3DMark Wild Life
3DMark Wild Life
Oppo Realme GT3
10143
Vivo X300 Ultra
n/a
Stability62 %n/a
Graphics Test60 fpsn/a
Graphics Score10143n/a
Sources: 3DMark [Oppo Realme GT3]

Memory

RAM
RAM Size - 8 GB
- 12 GB
- 16 GB		 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency n/a 5333 MHz
Channels 4 4
Storage
Storage Capacity- 128 GB
- 256 GB
- 512 GB
- 1024 GB		256 GB
Storage TypeUFS 3.1UFS 4.1
Memory CardNoNo

Software

OS Android 13 (Upgradeable to Android 14) Android 16
UI Skin Realme UI 4.0 OriginOS 6

Battery

Volume 4600 mAh 6600 mAh
Max Charging Power 240 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (40 W)
Reverse Charging No Yes
Fast Charging Yes (50% in 4 min) Yes
Full Charge Time 0:11 h n/a
Battery Life Test
Battery Life
Oppo Realme GT3
23:18
Vivo X300 Ultra
n/a
Web Browsing06:52 hn/a
Video Playback11:34 hn/a
Games04:38 hn/a
Standby Mode148 hn/a

Main camera

Matrix 50 MP 200 MP
Photo resolution 8192x6144 pixels n/a
Zoom Digital Optical, 3.7x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording No Yes (Up to 30 fps)
4K Recording Yes (Up to 60 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 ° 116 °
Lenses count Standard: 50 MP
Ultra-wide: 8 MP
Macro: 2 MP		 Standard: 200 MP
Telephoto: 200 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP200 MP
Aperturef/1.9f/1.9
Focal length24 mm35 mm
SensorSony IMX890Sony LYT-901
Sensor size1/1.561/1.12 (0.89)
Pixel size1 μm0.7 μm
AutofocusPhase autofocusLaser autofocus
StabilizationOpticalOptical
Telephoto
Matrixn/a200 MP
Aperturen/af/2.7
Focal lengthn/a85 mm
Sensorn/aSamsung ISOCELL HPB
Sensor sizen/a1/1.4 (0.71)
Pixel sizen/a0.56 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/2.0
Focal length16 mm14 mm
SensorSony IMX355Sony LYT-818
Sensor size1/4.01/1.28 (0.78)
Pixel size1.14 μm1.22 μm
StabilizationDigitalOptical

Front camera

Matrix 16 MP 50 MP
Photo resolution 4920x3264 pixels 8192x6144 pixels
Aperture f/2.5 f/2.5
Focal length 25 mm 24 mm
Sensor CMOS Samsung ISOCELL JN1
Sensor size 1/3.09 1/2.76 (0.36)
Pixel size n/a 0.64 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 1080p (Full HD) 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 5.3 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 n/a Yes
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 *NoNo
Hybrid SlotNoNo
LTE category20n/a
5G SupportYesYes

Sound

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

Other

Class Flagship Flagship
Announced February, 2023 yr March, 2026 yr
Release Date March, 2023 yr April, 2026 yr
Launch Price ($) 650 n/a
MSRP ($) n/a 1199
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 240 W Yes, 80 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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

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