Home Phone comparison Realme GT 6T and Vivo iQOO 15 - Which is better?

Realme GT 6T vs Vivo iQOO 15

74 out 100
Realme GT 6T
VS
94 out 100
Vivo iQOO 15
Realme GT 6T
Vivo iQOO 15

Compared 2 smartphones : Realme GT 6T Manufactured in May, 2024, with display 6.78 with chipsetQualcomm Snapdragon 7 Plus Gen 3, vs Vivo iQOO 15, Manufactured in October, 2025 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 Realme GT 6T
  • Lighter design: 191g vs 220g
  • Supports Dolby Atmos
Reasons to choose Vivo iQOO 15
  • Larger display: 6.85in
  • Higher pixel density: 508ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 5500mAh
  • Newer Bluetooth version: 6.0 vs 5.4
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort

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 GT 6T and Vivo iQOO 15
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 GT 6T
vs
Vivo iQOO 15

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.78 in 6.85 in
Resolution 1264x2780 pixels 1440x3168 pixels
Aspect ratio 20:9 20:9
Pixel density 450 ppi 508 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (1-120 Hz)
Max brightness 6000 nits 2600 nits
HDR support Yes HDR10+ Yes, HDR10+
Touch Sampling Rate 360 Hz n/a
Screen-to-body ratio 91.2 % 90.2 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Realme GT 6T
1039 nits
Vivo iQOO 15
n/a

Design & Build

Design and ergonomics comparison
Height 162 mm (6.38 in) 163.65 mm (6.44 in)
Width 75.1 mm (2.96 in) 76.8 mm (3.02 in)
Thickness 8.65 mm (0.34 in) 8.1 mm (0.32 in)
Weight 191 g (6.74 oz) 220 g (7.76 oz)
Water resistance IP65 IP69
Cooling system Vapor chamber Vapor chamber
Back panel Plastic n/a
Frame Plastic Metal
Colors - Silver
- Green		 - White
- Black
- Blue
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Realme GT 6T
91.2 %
Vivo iQOO 15
90.2 %

Performance

Testing Realme GT 6T and Vivo iQOO 15 In benchmarks
Processor
Chipset Qualcomm Snapdragon 7 Plus Gen 3 Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 2800 MHz 4600 MHz
CPU Cores 8 (1 + 4 + 3) 8 (2 + 6)
Architecture - 3/1.9 (Cortex-A520)
- 4/2.6 (Cortex-A720)
- 1/2.8 (Cortex-X4)		 6/3.63 ()
Process TSMC TSMC
Transistor Size 4 nm 3 nm
Neural Processor Yes Hexagon
Graphics Adreno 732 Adreno 840
GPU Cores 768 1536
GPU Frequency 950 MHz 1200 MHz
FLOPS 1459.2 GFLOPS 3686.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Realme GT 6T
1863
Vivo iQOO 15
3641
Geekbench 6 (Multi-Core)
Realme GT 6T
4891
Vivo iQOO 15
10982
Geekbench 6 (Single-Core)18633641
Geekbench 6 (Multi-Core)489110982
Geekbench Compute (GPU)891527923
Sources: Geekbench v6 [Realme GT 6T], [Vivo iQOO 15]
AnTuTu 10
AnTuTu 10
Realme GT 6T
1376731
Vivo iQOO 15
4009400
CPU3771621102463
GPU4489831429688
Memory309112516447
UX241774960802
NanoReview Score13767314009400

Memory

RAM
RAM Size - 8 GB
- 12 GB		 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 4200 MHz 5300 MHz
Channels 4 4
Storage
Storage Capacity- 128 GB
- 256 GB
- 512 GB		256 GB
Storage TypeUFS 4.0UFS 4.1
Memory CardNoNo

Software

OS Android 14 Android 16
UI Skin Realme UI 5.0 OriginOS 6

Battery

Volume 5500 mAh 7000 mAh
Max Charging Power 120 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (40 W)
Reverse Charging n/a No
Fast Charging Yes (66% in 15 min) Yes
Full Charge Time 0:28 h n/a
Battery Life Test
Battery Life
Realme GT 6T
26:21
Vivo iQOO 15
n/a
Web Browsing11:31 hn/a
Video Playback16:47 hn/a
Games06:25 hn/a
Standby Mode114 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Digital Optical, 3x
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 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 112 ° n/a
Lenses count Standard: 50 MP
Ultra-wide: 8 MP		 Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP50 MP
Aperturef/1.9f/1.9
Focal length26 mm23 mm
SensorSony LYT-600n/a
Sensor size1/21/1.56
Pixel size0.7 μm1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/2.7
Sensor sizen/a1/1.95
Pixel sizen/a0.8 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/2.1
Focal length16 mm15 mm
SensorSony IMX355n/a
Sensor size1/4.01/2.76
Pixel size1.14 μm0.64 μm
StabilizationDigitalDigital

Front camera

Matrix 32 MP 32 MP
Photo resolution 6560x4928 pixels n/a
Aperture f/2.5 f/2.2
Focal length 22 mm 21 mm
Sensor Sony IMX615 CMOS
Sensor size 1/2.74 n/a
Pixel size 0.8 μm n/a
Autofocus No No
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 6.0
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
- NAVIC		 - 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
2G BandsGSM 850/900/1800/1900GSM 850/900/1800/1900MHz
3G BandsWCDMA B1/B2/B4/B5/B6/B8/B19WCDMA B1/B2/B4/B5/B6/B8/B19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B38/B39/B40/B41/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B38/B40/B41/B42/B66)
LTE category18n/a
5G SupportYesYes

Sound

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

Other

Class Mid-range Flagship
Announced May, 2024 yr October, 2025 yr
Release Date May, 2024 yr October, 2025 yr
Launch Price ($) 399 n/a
MSRP ($) n/a 590
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 Yes, 100 W

Note

Realme GT 6T:

The 128 GB model received UFS 3.1 memory, while the other versions UFS 4.0. The IP65 certification is implemented only in specific countries.

* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Vivo iQOO 15 the clear winner in this comparison.

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