Home Phone comparison Realme GT5 and Samsung Galaxy S21 Ultra - Which is better?

Realme GT5 vs Samsung Galaxy S21 Ultra

77 out 100
Realme GT5
VS
67 out 100
Samsung Galaxy S21 Ultra
Realme GT5
Samsung Galaxy S21 Ultra

Compared 2 smartphones : Realme GT5 Manufactured in September, 2023, with display 6.74 with chipsetQualcomm Snapdragon 8 Gen 2, vs Samsung Galaxy S21 Ultra, Manufactured in February, 2021 with chipsetSamsung Exynos 2100. 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 GT5
  • Higher refresh rate: 144Hz
  • Lighter design: 205g vs 227g
  • Higher battery capacity: 5240mAh vs 5000mAh
  • Newer Bluetooth version: 5.3 vs 5.2
  • Infrared port
  • Includes charger
Reasons to choose Samsung Galaxy S21 Ultra
  • Larger display: 6.8in
  • Higher pixel density: 515ppi
  • Supports newer USB: 3.2 vs 2
  • Built-in eSIM

Versions

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

Review

Key Specs Realme GT5 and Samsung Galaxy S21 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.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Realme GT5
vs
Galaxy S21 Ultra

Display

Display quality comparison
Type AMOLED Dynamic AMOLED
Size 6.74 in 6.8 in
Resolution 1240x2772 pixels 1440x3200 pixels
Aspect ratio 20:9 20:9
Pixel density 451 ppi 515 ppi
Refresh rate 144 Hz 120 Hz
Adaptive refresh rate Yes Yes (10-120 Hz)
Max brightness 1400 nits 1500 nits
HDR support Yes HDR10+ Yes HDR10+
Touch Sampling Rate 300 Hz n/a
Screen-to-body ratio 89.2 % 89.5 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Realme GT5
1091 nits
Samsung Galaxy S21 Ultra
1019 nits
sRGB gamut99.5 %n/a
PWM (Flicker)120 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Realme GT5], [Samsung Galaxy S21 Ultra]

Design & Build

Design and ergonomics comparison
Height 163.13 mm (6.42 in) 165.1 mm (6.5 in)
Width 75.38 mm (2.97 in) 75.6 mm (2.98 in)
Thickness 8.9 mm (0.35 in) 8.9 mm (0.35 in)
Weight 205 g (7.23 oz) 227 g (8.01 oz)
Water resistance No IP68
Cooling system Vapor chamber n/a
Back panel Glass Glass
Frame Metal Metal
Colors - Silver
- Green		 - Black
- Silver
- Gray
- Blue
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Realme GT5
89.2 %
Samsung Galaxy S21 Ultra
89.5 %

Performance

Testing Realme GT5 and Samsung Galaxy S21 Ultra In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 2 Samsung Exynos 2100
Max Frequency 3200 MHz 2900 MHz
CPU Cores 8 (1 + 2 + 2 + 3) 8 (1 + 3 + 4)
Architecture - 3/2 (Cortex-A510)
- 2/2.8 (Cortex-A710)
- 2/2.8 (Cortex-A715)
- 1/3.2 (Cortex-X3)		 - 4/2.2 (Cortex-A55)
- 3/2.81 (Cortex-A78)
- 1/2.91 (Cortex-X1)
Process TSMC Samsung
Transistor Size 4 nm 5 nm
Neural Processor Hexagon Yes
Graphics Adreno 740 Mali-G78 MP14
GPU Cores 1536 896
GPU Frequency 680 MHz 854 MHz
FLOPS 2089 GFLOPS 1530.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Realme GT5
1997
Samsung Galaxy S21 Ultra
1449
Geekbench 6 (Multi-Core)
Realme GT5
5470
Samsung Galaxy S21 Ultra
3892
Geekbench 6 (Single-Core)19971449
Geekbench 6 (Multi-Core)54703892
Sources: Geekbench v6 [Realme GT5]
AnTuTu 10
AnTuTu 10
Realme GT5
1563190
Samsung Galaxy S21 Ultra
843008
CPU387564232358
GPU592096256356
Memory290873163007
UX292657191217
NanoReview Score1563190843008
3DMark Wild Life
3DMark Wild Life
Realme GT5
12533
Samsung Galaxy S21 Ultra
5221
Max Surface Temp.n/a40.8 °C
Stabilityn/a69 %
Graphics Testn/a31 fps
Graphics Scoren/a5221
Sources: 3DMark [Realme GT5], [Samsung Galaxy S21 Ultra]

Memory

RAM
RAM Size - 12 GB
- 16 GB
- 24 GB		 - 12 GB
- 16 GB
Memory Type LPDDR5X LPDDR5
Memory Frequency 4200 MHz 2750 MHz
Channels 4 2
Storage
Storage Capacity- 256 GB
- 512 GB		- 128 GB
- 256 GB
- 512 GB
Storage TypeUFS 4.0UFS 3.1
Memory CardNoNo

Software

OS Android 13 (Upgradeable to Android 14) Android 11 (Upgradeable to Android 14)
OS Size n/a 26.4 GB
UI Skin Realme UI 5.0 One UI 6

Battery

Volume 5240 mAh 5000 mAh
Max Charging Power 150 W 25 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging No Yes (15 W)
Reverse Charging No Yes (Wireless)
Fast Charging Yes (50% in 7 min) Yes (54% in 30 min)
Full Charge Time 0:16 h 1:11 h
Battery Life Test
Battery Life
Realme GT5
23:26
Samsung Galaxy S21 Ultra
22:05
Web Browsing08:00 h07:58 h
Video Playback10:56 h13:59 h
Games04:54 h05:14 h
Standby Mode142 h111 h

Main camera

Matrix 50 MP 108 MP
Photo resolution 8192x6144 pixels 12000x9000 pixels
Zoom Digital Optical, 10x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording No Up to 24FPS
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 1920 fps (720p) 960 fps (720p)
Wide-angle lens 112 ° 120 °
Lenses count Standard: 50 MP
Ultra-wide: 8 MP
Macro: 2 MP		 Standard: 108 MP
Telephoto: 10 MP
Telephoto: 10 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP108 MP
Aperturef/1.9f/1.8
Focal length24 mm26 mm
SensorSony IMX890Samsung S5KHM3
Sensor size1/1.561/1.33
Pixel size1 μm0.8 μm
AutofocusPhase autofocusLaser autofocus
StabilizationOpticalOptical
Telephoto
Matrixn/a10 MP
Aperturen/af/4.9
Focal lengthn/a240 mm
Sensorn/aSamsung S5K3J1
Sensor sizen/a1/2.65
Pixel sizen/a1.22 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix8 MP12 MP
Aperturef/2.2f/2.2
Focal length16 mm13 mm
SensorSony IMX355Sony IMX563
Sensor size1/4.01/2.55
Pixel size1.14 μm1.4 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Realme GT5
n/a
Samsung Galaxy S21 Ultra
121
Video quality
Realme GT5
n/a
Samsung Galaxy S21 Ultra
100
Overall camera score
Realme GT5
n/a
Samsung Galaxy S21 Ultra
115
Bokehn/a70
Previewn/a67
Zoomn/a106
Sources: DxOMark [Samsung Galaxy S21 Ultra]

Front camera

Matrix 16 MP 40 MP
Photo resolution 4920x3264 pixels 7864x5200 pixels
Aperture f/2.5 f/2.2
Focal length 25 mm 26 mm
Sensor Samsung S5K3P9 Samsung S5KGH1
Sensor size 1/3.09 1/2.65
Pixel size 1 μm 0.7 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
Selfie camera DxOMark results
Photo quality
Realme GT5
n/a
Samsung Galaxy S21 Ultra
133
Video quality
Realme GT5
n/a
Samsung Galaxy S21 Ultra
140

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 5.3 5.2
Bluetooth features LE LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- USB-Host mode
- OTG
GPS - GPS
- GLONASS
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotYesNo
2G BandsGSM 850/900/1800GSM 850, 900, 1800, 1900 MHz
3G BandsWCDMA B1/B5/B8WCDMA Band 1, 2, 4, 5, 8
LTE Bands*LTE (B1/B3/B5/B7/B8/B28/B34/B38/B39/B40/B41)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B38/B39/B40/B41/B66)
LTE category2024
5G SupportYesYes

Sound

Speakers Stereo Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Realme GT5
89.9 dB
Samsung Galaxy S21 Ultra
88 dB

Other

Class Flagship Flagship
Announced August, 2023 yr January, 2021 yr
Release Date September, 2023 yr February, 2021 yr
Launch Price ($) 500 1200
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 150 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Realme GT5 the clear winner in this comparison.

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