Samsung Galaxy S23 Ultra vs Samsung Galaxy S21
Short Description
Samsung Galaxy S23 Ultra
Screen size: 6.8" / Resolution: 1440 x 3088 px / Main camera: 200 MP & 12 MP & 10 MP & 10 MP / Front camera: 12MP / RAM: 12GB, 16GB / Battery power: 5000 mAh / Has 5G support: ✔ / Internal storage: 256GB, 512GB, 1TB / SIM cards: 1 SIM, 1 eSIM
Samsung Galaxy S21
Screen size: 6.2" / Resolution: 1080 x 2400 px / Main camera: 64 MP & 12 MP & 12 MP / Front camera: 10MP / RAM: 8GB / Battery power: 4000 mAh / Has 5G support: ✔ / Internal storage: 128GB, 256GB / SIM cards: 1 SIM, 1 eSIM
Key Differences
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
How is Samsung Galaxy S23 Ultra better than Samsung Galaxy S21?
Bigger battery capacity: 5000 mAh vs 4000 mAh
Faster CPU speed: 1 x 3.2 GHz & 4 x 2.8 GHz & 3 x 2 GHz vs 1 x 2.9 GHz & 3 x 2.8 GHz & 4 x 2.2 GHz
More RAM memory capacity in max option: 12GB, 16GB vs 8GB
AnTuTu score is about 71% higher
More internal storage in max option: 256GB, 512GB, 1TB vs 128GB, 256GB
More megapixels main camera: 200 MP & 12 MP & 10 MP & 10 MP vs 64 MP & 12 MP & 12 MP
More megapixels front camera: 12MP vs 10MP
Has a larger display diagonal: 6.8" vs 6.2"
Better display resolution: 1440 x 3088 px vs 1080 x 2400 px
Higher charging speed: 45W vs 25W
More color options: Phantom Black, Green, Cream, Lavender, Graphite, Sky Blue, Lime, Red, BMW M Edition vs Phantom Gray, Phantom White, Phantom Violet, Phantom Pink
The phone is 2 years newer
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
How is Samsung Galaxy S21 better than Samsung Galaxy S23 Ultra?
Lighter: 171 g (6.03 ounces) vs 233 g (8.22 ounces)
Narrower: 71.2 mm (2.8 inches) vs 78.1 mm (3.07 inches)
Shorter: 151.7 mm (5.97 inches) vs 163.4 mm (6.43 inches)
Size Comparison
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
Height
163.4 mm
(6.43 inches)
Width
78.1 mm
(3.07 inches)
Thickness
8.9 mm
(0.35 inches)
Screen size
6.8"
Weight
233 g
(8.22 ounces)
6.8"
6.2"
Height
151.7 mm
(5.97 inches)
Width
71.2 mm
(2.8 inches)
Thickness
7.9 mm
(0.31 inches)
Screen size
6.2"
Weight
171 g
(6.03 ounces)
Height
163.4 mm
(6.43 inches)
Width
78.1 mm
(3.07 inches)
Thickness
8.9 mm
(0.35 inches)
Screen size
6.8"
Weight
233 g
(8.22 ounces)
Height
151.7 mm
(5.97 inches)
Width
71.2 mm
(2.8 inches)
Thickness
7.9 mm
(0.31 inches)
Screen size
6.2"
Weight
171 g
(6.03 ounces)
3D comparison
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
Expert Score
Score 4.4
Score 3.9
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
Score 4.4
Score 3.9
TechRadar
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
IGN
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
Tom's Guide
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
PCMag
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
The Verge
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
Smartprix
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
Vote for Your option
Samsung Galaxy S23 Ultra
Vote for Your option
Samsung Galaxy S21
Benchmarks
AnTuTu Score
Samsung Galaxy S23 Ultra
1,541,246 +70.53%
Samsung Galaxy S21
903,780
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 S23 Ultra
371,084 +46.45%
Samsung Galaxy S21
253,391
Measures the performance of a device's processor, focusing on tasks such as computing power and multi-core efficiency.
GPU
Samsung Galaxy S23 Ultra
600,732 +113.27%
Samsung Galaxy S21
281,676
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 S23 Ultra
299,004 +88.82%
Samsung Galaxy S21
158,352
Measures the performance of a device's memory (RAM), measuring its speed and efficiency in handling multitasking and data-intensive applications.
UX
Samsung Galaxy S23 Ultra
270,462 +28.57%
Samsung Galaxy S21
210,361
Measures the overall user experience performance of a device, including factors like system responsiveness, touch sensitivity, and app launching speed.
3DMark Wild Life benchmark
Samsung Galaxy S23 Ultra
12,159 +121.48%
Samsung Galaxy S21
5,490
Is a cross-platform benchmark designed to test the graphical performance of devices under high GPU load.
3DMark Wild Life Unlimited benchmark
Samsung Galaxy S23 Ultra
13,929 +141.82%
Samsung Galaxy S21
5,760
Is a cross-platform graphical benchmark that tests a device's performance while eliminating the impact of screen resolution for more objective platform comparisons.
3DMark Wild Life Extreme benchmark
Samsung Galaxy S23 Ultra
3,723 +106.83%
Samsung Galaxy S21
1,800
Is a cross-platform graphical benchmark that tests a device's performance under higher workloads with more detailed visuals, designed for powerful GPUs.
Geekbench 6 · Multi-Core
Samsung Galaxy S23 Ultra
4,937 +47.86%
Samsung Galaxy S21
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 S23 Ultra
1,870 +40.18%
Samsung Galaxy S21
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 S23 Ultra
Samsung Galaxy S21
Battery Life
Charging timeComparison videos
10,000+ views
Samsung Galaxy S23 Ultra Vs Samsung Galaxy S21 Ultra! (Comparison) (Review)
Technical Specifications
Show differences
Show differences
Specs
Samsung Galaxy S23 Ultra
Samsung Galaxy S21
Design
Weight
233 g (8.22 ounces)
171 g (6.03 ounces)
Thickness
8.9 mm (0.35 inches)
7.9 mm (0.31 inches)
Width
78.1 mm (3.07 inches)
71.2 mm (2.8 inches)
Height
163.4 mm (6.43 inches)
151.7 mm (5.97 inches)
Is weather-sealed (splashproof)
✔
✔
Ingress Protection (IP) rating
IP68
IP68
Waterproof depth rating
1.5 m
1.5 m
Volume
113.58 cm³
85.33 cm³
Is dustproof and water-resistant
✔
✔
Color options
Phantom Black, Green, Cream, Lavender, Graphite, Sky Blue, Lime, Red, BMW M Edition
Phantom Gray, Phantom White, Phantom Violet, Phantom Pink
French Repairability Index
8.2
1
Display
Screen size
6.8"
6.2"
Display type
OLED/AMOLED
OLED/AMOLED
Pixel density
501 ppi
421 ppi
Resolution
1440 x 3088 px
1080 x 2400 px
Refresh rate
120Hz
120Hz
Touch sampling rate
125Hz
240Hz
Brightness (typical)
1750 nits
1300 nits
Has branded damage-resistant glass
✔
✔
Gorilla Glass version
Gorilla Glass Victus 2
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
RAM
12GB, 16GB
8GB
Android version
Android 13
Android 11
CPU speed
1 x 3.2 GHz & 4 x 2.8 GHz & 3 x 2 GHz
1 x 2.9 GHz & 3 x 2.8 GHz & 4 x 2.2 GHz
GPU clock speed
970 MHz
-
Has integrated LTE
✔
✔
RAM speed
4200 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
64 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
16GB
16GB
L3 cache
6 MB
-
Uses multithreading
✔
-
GPU execution units
3
-
Thermal Design Power (TDP)
6.3W
9W
Shading units
768
-
Release date
2023
2021
Memory channels
-
4
Supported displays
1
-
Has NX bit
-
✔
GPU turbo
-
854 MHz
Cameras
Main camera
200 MP & 12 MP & 10 MP & 10 MP
64 MP & 12 MP & 12 MP
Front camera
12MP
10MP
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/2.2 & f/2.4 & f/4.9
f/1.8 & f/2 & f/2.2
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
10x
1.1x
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
✔
✔
Pixel size (main camera)
0.6 µm & 1.4 µm & 1.12 µm & 1.12 µm
1.8 µm & 0.8 µm & 1.4 µm
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
4000 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 a battery level indicator
✔
✔
Has a rechargeable battery
✔
✔
Audio
Has stereo speakers
✔
✔
Has LDAC
✔
-
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 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
Download speed
10000 MBits/s
3000 MBits/s
Upload speed
3000 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
✔
✔
Bluetooth version
5.3
5.1
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+
-
✔
Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Vote for Your option
Samsung Galaxy S23 Ultra
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Samsung Galaxy S21
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