Samsung Galaxy S24 Ultra vs Samsung Galaxy S21 Ultra
Short Description
Samsung Galaxy S24 Ultra
Screen size: 6.8" / Resolution: 1440 x 3120 px / Main camera: 200 MP & 50 MP & 12 MP & 10 MP / Front camera: 12MP / RAM: 8GB, 12GB / Battery power: 5000 mAh / Has 5G support: ✔ / Internal storage: 256GB, 512GB, 1TB / SIM cards: 1 SIM, 1 eSIM
Samsung Galaxy S21 Ultra
Screen size: 6.8" / Resolution: 1440 x 3200 px / Main camera: 108 MP & 12 MP & 10 MP & 10 MP / Front camera: 40MP / RAM: 12GB, 16GB / Battery power: 5000 mAh / Has 5G support: ✔ / Internal storage: 128GB, 256GB, 512GB / SIM cards: 1 SIM, 1 eSIM
Key Differences
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
How is Samsung Galaxy S24 Ultra better than Samsung Galaxy S21 Ultra?
Faster CPU speed: 3 x 3.15 GHz & 2 x 2.96 GHz & 2 x 2.26 GHz & 1 x 3.3 GHz vs 1 x 2.9 GHz & 3 x 2.8 GHz & 4 x 2.2 GHz
AnTuTu score is about 132% higher
More internal storage in max option: 256GB, 512GB, 1TB vs 128GB, 256GB, 512GB
More megapixels main camera: 200 MP & 50 MP & 12 MP & 10 MP vs 108 MP & 12 MP & 10 MP & 10 MP
Higher charging speed: 45W vs 25W
Shorter: 162.3 mm (6.39 inches) vs 165.1 mm (6.5 inches)
More color options: Titanium Black, Titanium Gray, Titanium Violet, Titanium Yellow, Titanium Blue, Titanium Green, Titanium Orange vs Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
The phone is 2 years and 2 months newer
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
How is Samsung Galaxy S21 Ultra better than Samsung Galaxy S24 Ultra?
More RAM memory capacity in max option: 12GB, 16GB vs 8GB, 12GB
More megapixels front camera: 40MP vs 12MP
Better display resolution: 1440 x 3200 px vs 1440 x 3120 px
Lighter: 229 g (8.08 ounces) vs 233 g (8.22 ounces)
Narrower: 75.6 mm (2.98 inches) vs 79 mm (3.11 inches)
Size Comparison
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
Height
162.3 mm
(6.39 inches)
Width
79 mm
(3.11 inches)
Thickness
8.6 mm
(0.34 inches)
Screen size
6.8"
Weight
233 g
(8.22 ounces)
6.8"
6.8"
Height
165.1 mm
(6.5 inches)
Width
75.6 mm
(2.98 inches)
Thickness
8.9 mm
(0.35 inches)
Screen size
6.8"
Weight
229 g
(8.08 ounces)
Height
162.3 mm
(6.39 inches)
Width
79 mm
(3.11 inches)
Thickness
8.6 mm
(0.34 inches)
Screen size
6.8"
Weight
233 g
(8.22 ounces)
Height
165.1 mm
(6.5 inches)
Width
75.6 mm
(2.98 inches)
Thickness
8.9 mm
(0.35 inches)
Screen size
6.8"
Weight
229 g
(8.08 ounces)
3D comparison
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
Expert Score
Score 4.4
Score 4.3
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
Score 4.4
Score 4.3
CNet
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
TechRadar
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
IGN
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
Tom's Guide
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
PCMag
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
The Verge
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
Smartprix
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
Vote for Your option
Samsung Galaxy S24 Ultra
Vote for Your option
Samsung Galaxy S21 Ultra
Benchmarks
AnTuTu Score
Samsung Galaxy S24 Ultra
1,952,680 +131.63%
Samsung Galaxy S21 Ultra
843,008
The score reflects a device's overall performance by summing up results from tests of RAM speed, CPU, and 2D/3D graphics.
CPU
Samsung Galaxy S24 Ultra
474,941 +104.4%
Samsung Galaxy S21 Ultra
232,358
Measures the performance of a device's processor, focusing on tasks such as computing power and multi-core efficiency.
GPU
Samsung Galaxy S24 Ultra
764,723 +198.31%
Samsung Galaxy S21 Ultra
256,356
Measures the graphical performance of a device's GPU, evaluating its ability to handle graphics-intensive tasks such as gaming and rendering.
Memory
Samsung Galaxy S24 Ultra
400,984 +145.99%
Samsung Galaxy S21 Ultra
163,007
Measures the performance of a device's memory (RAM), measuring its speed and efficiency in handling multitasking and data-intensive applications.
UX
Samsung Galaxy S24 Ultra
312,032 +63.18%
Samsung Galaxy S21 Ultra
191,217
Measures the overall user experience performance of a device, including factors like system responsiveness, touch sensitivity, and app launching speed.
Geekbench 6 · Multi-Core
Samsung Galaxy S24 Ultra
7,085 +112.19%
Samsung Galaxy S21 Ultra
3,339
Measures the aggregate performance of all processor cores in a device, simulating tasks optimized for multi-threaded processing.
Geekbench 6 · Single-Core
Samsung Galaxy S24 Ultra
2,267 +69.94%
Samsung Galaxy S21 Ultra
1,334
Measures the performance of a single processor core by assessing how efficiently the device handles single-threaded processing-based tasks.
Battery Performance
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
Battery Life
Charging timeComparison videos
20,000+ views
Samsung Galaxy S24 Ultra vs Samsung Galaxy S21 Ultra
9,000+ views
Samsung Galaxy S24 Ultra vs Samsung Galaxy S21 ultra
About Products
Samsung Galaxy S24 Ultra
The Samsung Galaxy S24 Ultra is a pinnacle of smartphone innovation. It features a stunning 6.8-inch Dynamic AMOLED 2X display with a 120Hz refresh rate, providing vibrant visuals and smooth scrolling. Powered by the Snapdragon 8 Gen 3 processor, it offers top-tier performance and efficiency, making multitasking seamless.
The camera setup is a standout, boasting a 200MP main sensor, 12MP ultra-wide, 10MP periscope telephoto, and 10MP telephoto lenses, delivering exceptional photos and up to 100x Space Zoom. The 12MP front camera ensures high-quality selfies and video calls.
With up to 1TB storage and 12GB RAM, it caters to heavy users. The 5000mAh battery supports 45W wired and 15W wireless charging, ensuring long-lasting power. Running on One UI 6 based on Android 14, the user interface is intuitive and customizable.
Additional features include an in-display fingerprint sensor, IP68 water and dust resistance, and S Pen support. While the premium price may deter some, the Galaxy S24 Ultra offers unparalleled performance and features, making it a top choice for those seeking the best in smartphone technology.
Samsung Galaxy S21 Ultra
The Samsung Galaxy S21 Ultra is a flagship powerhouse, designed for those who seek top-tier performance and innovation. Featuring a stunning 6.8-inch Dynamic AMOLED 2X display with a 120Hz refresh rate, it delivers vibrant visuals and smooth scrolling. The Exynos 2100 (or Snapdragon 888) processor ensures lightning-fast performance and seamless multitasking.
Its advanced quad-camera system includes a 108MP main sensor, dual telephoto lenses, and a 12MP ultra-wide, enabling incredible photography with up to 100x Space Zoom. The 40MP front camera ensures detailed selfies. With its massive 5000mAh battery, S Pen support, and 5G connectivity, the S21 Ultra is a feature-rich device, perfect for enthusiasts and professionals looking for the best in smartphone technology.
Technical Specifications
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Specs
Samsung Galaxy S24 Ultra
Samsung Galaxy S21 Ultra
Design
Weight
233 g (8.22 ounces)
229 g (8.08 ounces)
Thickness
8.6 mm (0.34 inches)
8.9 mm (0.35 inches)
Width
79 mm (3.11 inches)
75.6 mm (2.98 inches)
Height
162.3 mm (6.39 inches)
165.1 mm (6.5 inches)
Is weather-sealed (splashproof)
✔
✔
Ingress Protection (IP) rating
IP68
IP68
Waterproof depth rating
1.5 m
1.5 m
Volume
110.27 cm³
111.09 cm³
Is dustproof and water-resistant
✔
✔
Color options
Titanium Black, Titanium Gray, Titanium Violet, Titanium Yellow, Titanium Blue, Titanium Green, Titanium Orange
Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
French Repairability Index
-
8.2
Display
Screen size
6.8"
6.8"
Display type
OLED/AMOLED
OLED/AMOLED
Pixel density
501 ppi
515 ppi
Resolution
1440 x 3120 px
1440 x 3200 px
Refresh rate
120Hz
120Hz
Touch sampling rate
240Hz
-
Brightness (typical)
1200 nits
1500 nits
Has branded damage-resistant glass
✔
✔
Gorilla Glass version
Gorilla Glass Armor
Gorilla Glass Victus
Supports HDR10
✔
✔
Supports HDR10+
✔
✔
Always-On Display
✔
✔
Contrast ratio
3000000:1
3000000:1
Has a curved display
-
✔
Has a touch screen
✔
✔
Performance
Internal storage
256GB, 512GB, 1TB
128GB, 256GB, 512GB
RAM
8GB, 12GB
12GB, 16GB
Android version
Android 14
Android 14
CPU speed
3 x 3.15 GHz & 2 x 2.96 GHz & 2 x 2.26 GHz & 1 x 3.3 GHz
1 x 2.9 GHz & 3 x 2.8 GHz & 4 x 2.2 GHz
GPU clock speed
900 MHz
-
Has integrated LTE
✔
✔
RAM speed
4800 MHz
3200 MHz
Semiconductor size
4 nm
5 nm
Supports 64-bit
✔
✔
DirectX version
DirectX 12
DirectX 12
Has integrated graphics
✔
✔
OpenGL version
3.3
-
OpenGL ES version
3.2
3.2
Uses big.LITTLE technology
✔
✔
CPU threads
8 threads
8 threads
Uses HMP
✔
✔
Has TrustZone
✔
✔
Maximum memory bandwidth
76.6 GB/s
51.2 GB/s
OpenVG version
1.2
-
OpenCL version
2
2
L2 cache
1 MB
-
EMMC version
5.1
-
DDR memory version
5
5
Maximum memory amount
24GB
16GB
L3 cache
12 MB
-
Uses multithreading
✔
-
GPU execution units
3
-
Thermal Design Power (TDP)
12.5W
9W
Release date
2024
2021
Has NX bit
-
✔
Memory channels
-
4
GPU turbo
-
854 MHz
Cameras
Main camera
200 MP & 50 MP & 12 MP & 10 MP
108 MP & 12 MP & 10 MP & 10 MP
Front camera
12MP
40MP
Has built-in optical image stabilization
✔
✔
Video recording (main camera)
4320 x 30 fps
4320 x 24 fps
Wide aperture (main camera)
f/1.7 & f/3.4 & f/2.2 & f/2.4
f/1.8 & f/2.2 & f/4.9 & f/2.4
Has a dual-tone LED flash
✔
✔
Has a BSI sensor
✔
✔
Has continuous autofocus when recording movies
✔
✔
Has phase-detection autofocus for photos
✔
✔
Supports slow-motion video recording
✔
✔
Has a built-in HDR mode
✔
✔
Has a flash
✔
✔
Has manual exposure
✔
✔
Has a dual-lens (or multi-lens) main camera
✔
✔
Optical zoom
5x
10x
Number of flash LEDs
2
2
Has a CMOS sensor
✔
✔
Has manual ISO
✔
✔
Has a serial shot mode
✔
✔
Has manual focus
✔
✔
Has a front camera
✔
✔
Has laser autofocus
✔
✔
Has manual white balance
✔
✔
Shoots raw
✔
✔
Has touch autofocus
✔
✔
Has manual shutter speed
✔
-
Can create panoramas in-camera
✔
✔
Wide aperture (front camera)
f/2.2
f/2.2
Has timelapse function
✔
✔
Supports HDR10 recording
✔
-
Operating system
Has clipboard warnings
✔
✔
Has location privacy options
✔
✔
Has camera/microphone privacy options
✔
✔
Has theme customization
✔
✔
Can play games while they download
✔
✔
Has dark mode
✔
✔
Has Wi-Fi password sharing
✔
✔
Has battery health check
✔
✔
Has an extra dim mode
✔
✔
Has focus modes
✔
✔
Has dynamic theming
✔
✔
Can offload apps
✔
✔
Has customizable notifications
✔
✔
Has scrolling screenshots
✔
✔
Supports split screen
✔
✔
Supports instant markup
✔
✔
Supports PiP and PaP
✔
✔
More languages supported
125
-
Can be used as a PC
✔
✔
Has sharing intents
✔
✔
Has a child lock
✔
✔
Supports widgets
✔
-
Is free and open source
✔
✔
Tracks the current position of a mobile device
✔
✔
Is a multi-user system
✔
✔
Supports widgets
-
✔
More languages supported
-
125
Has offline voice recognition
✔
✔
The browser has word wrap
✔
✔
Has voice commands
✔
✔
Battery
Battery power
5000 mAh
5000 mAh
Has wireless charging
✔
✔
Supports fast charging
✔
✔
Charging speed
45W
25W
Wireless charging speed
15W
15W
Has reverse wireless charging
✔
✔
Reverse wireless charging speed
4.5W
4.5W
Has an ultra power-saving mode
✔
-
Has a battery level indicator
✔
✔
Has a rechargeable battery
✔
✔
Battery life
-
35.5 hours
Audio
Has stereo speakers
✔
✔
Has LDAC
✔
-
Has aptX HD
✔
-
Has aptX Lossless
✔
-
Has aptX
-
✔
Number of microphones
3
2
Features
Has 5G support
✔
✔
Wi-Fi version
Wi-Fi 4 (802.11n), Wi-Fi 6E (802.11ax), Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 7 (802.11be)
Wi-Fi 6E (802.11ax), Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
Download speed
10000 MBits/s
3000 MBits/s
Upload speed
3500 MBits/s
422 MBits/s
Has USB Type-C
✔
✔
USB version
3.2
3.2
Has NFC
✔
✔
SIM cards
1 SIM, 1 eSIM
1 SIM, 1 eSIM
Has a fingerprint scanner
✔
✔
Has emergency SOS via satellite
✔
-
Bluetooth version
5.3
5.2
Has a gyroscope
✔
✔
Has GPS
✔
✔
Has a compass
✔
✔
Supports Wi-Fi
✔
✔
Has a cellular module
✔
✔
Has a barometer
✔
✔
Stylus included
✔
-
Supports Galileo
✔
✔
Has an accelerometer
-
✔
Supports ant+
-
✔
Head SAR (eu)
-
0.71W/kg
Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
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Samsung Galaxy S24 Ultra
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Samsung Galaxy S21 Ultra
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