Basics |
Samsung Galaxy S21 Ultra
Global · 12GB · 128GB · SM-G998B
View datasheet
vs
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Samsung Galaxy S23 Ultra
Global · 8GB · 256GB · SM-S918B
View datasheet
vs
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Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
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Ki Cost-effective Score |
8.9
Ki Cost-effective Score |
9.2
Ki Cost-effective Score |
Design and Screen score | 8.2Design & Materials | 8.8Design & Materials |
Performance and Hardware score | 7.6Performance & Hardware | 8.5Performance & Hardware |
Camera score | 8.7Camera | 8.9Camera |
Connectivity score | 8.4 Connectivity | 8.9 Connectivity |
Battery score | 8.0 Battery | 8.1 Battery |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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User score |
9.0
79 reviews
|
9.7
97 reviews
|
Specs |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
---|---|---|
Inches | 6.8" | 6.8" |
Resolution | WQHD+ | WQHD+ |
Usable surface | 89% useful | 89% useful |
Aspect Ratio | 20:9 | 19.5:9 |
Dimensions |
75.6 mm
165.1 mm 8.9 mm |
78.1 mm
163.4 mm 8.9 mm |
Weight | 227 g | 233 g |
Micro |
Exynos 2100 Octa-Core |
SnapD. 8 Gen2 Octa-Core |
RAM | 12 GB RAM | 8 GB RAM |
Storage | 128 GB | 256 GB |
AnTuTu |
749.000 v10 |
1.521.862 v10 |
Battery | 5000 mAh | 5000 mAh |
Main Camera |
1
108 Mpx · ƒ/1.8 S5KHM3 2 3 4 |
1
200 Mpx · ƒ/1.7 ISOCELL HP2 2 3 4 |
Selfie Camera | SELF 44 Mpx · ƒ/2.2 | SELF 12 Mpx · ƒ/2.2 |
Bands | ||
OS | Android 14 Upside-down cake | Android 13 Tiramisu |
The Samsung Galaxy S21 Ultra and the Samsung Galaxy S23 Ultra are two smartphones from Samsung's high-end lineup. Both devices have been released in 2021 for the S21 and 2023 for the S23. Although their release dates are different, the specifications of each device are surprisingly similar.
Design & Materials
The Samsung Galaxy S21 Ultra and the Samsung Galaxy S23 Ultra both have a 6.80-inch Super AMOLED display with a resolution of 1440x3088 (WQHD+). The S21 has a peak brightness of 1500 cd/m², while the S23 has a maximum brightness of 1100 cd/m². Both models feature Dual Edge display technology and HDR10+ compatibility.
The material used on both devices is aluminium and Corning Gorilla Glass Victus 2. This glass is several times tougher than its predecessor, making the S21 and S23 extremely durable and resistant. The usable surface ratio of both phones is quite close, with the S21 at 89% and the S23 slightly higher at 89.1%.
In terms of audio, both feature Stereo Speakers by AKG and Hi-Res Audio, as well as Dolby Atmos on the S21 and noise cancellation microphone for the S23. This makes them excellent for listening to music or watching movies.
Hardware
The S21 Ultra runs on a Samsung Exynos 2100 (5nm) processor with 12GB or 16GB RAM, and the S23 runs on a Qualcomm Snapdragon 8 Gen2 (4nm) processor with 8GB or 12GB RAM.
Both models feature 128GB, 256GB and 512GB storage options. The S21 features UFS Storage 3.1, while the S23 features upgrade storage to UFS Storage 4.0. On AnTuTu v9, the S21 scores 755462 and the S23 scores 1277468, making it significantly faster and more powerful than the S21.
The S21 and S23 both feature a Fingerprint Display as a security measure, providing extra protection and privacy.
Camera
The camera capabilities of both devices are quite impressive. The quad-camera setup on the S21 features a Samsung S5KHM3 108Mpx standard camera with f/1.8 lens, a Sony IMX563 12.2Mpx wide angle and macro lens with f/2.2 aperture, a Samsung S5K3J1 10Mpx telephoto and portrait lens with f/2.4 and 1.220 pixel size, and finally a Samsung S5K3J1 10Mpx telephoto lens with f/4.9 and 1.220 pixel size. Meanwhile, the S23 features a Samsung ISOCELL HP2 200Mpx standard camera with f/1.7 lens, a Sony IMX564 12.2Mpx with f/2.2 and 2.210 pixel size wide angle lens, a 10Mpx telephoto and portrait lens with f/2.4 and 1.120 pixel size, and a 10Mpx telephoto lens with f/4.9 and 1.120 pixel size.
The selfie cameras on both devices are also high-quality. The S21 has a Samsung S5KGH1 44Mpx camera with f/2.2 lens and 0.700 pixel size, while the S23 has a Samsung S5K3LU 12Mpx camera with f/2.2 lens.
The S21 and S23 feature Optical Stabilisation (OIS) for the camera, 4K video, 8K video, second telephoto lens 10x optical zoom, 100x digital zoom, ultra wide angle lens 120º, ultra wide angle video 4K HDR10+ @ 60fps, and ultra wide angle dual pixel autofocus.
Connectivity
In terms of connectivity, both devices feature Bluetooth 5.2, dual SIM, NFC, WiFi 6 (802.11ax), and GPS (L1+L5). The S21 only has USB Host 2.0 while the S23 also has USB Host 3.0 and eSIM capability.
Battery
The battery capacity of both phones is 5000mAh. The S21 supports 25W fast charging, and the S23 supports 45W fast charging. Both devices also support wireless charging and reverse charging.
Conclusion
The Samsung Galaxy S21 Ultra and the Samsung Galaxy S23 Ultra both have incredibly similar specs and features, despite the differences in release dates. They both have high-end displays with Dual Edge display and HDR10+ compatibility, as well as powerful processors and impressive camera capabilities. In addition, they both have long-lasting battery life with fast-charging capabilities and wireless charging. While the S23 is undoubtedly the more powerful of the two devices, they are both excellent options for anyone looking for a high-end smartphone.
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
---|---|---|
Brand | Samsung | Samsung |
Aliases | SM-G998B | SM-S918B, SM-S918B/DS |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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Release date |
January 2021, 3 years ago |
February 2023, 1 year ago |
State | On Sale | On Sale |
Market | Global | Global |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
---|---|---|
Size |
75.6 mm
•
165.1 mm
•
8.9 mm
Print 3D Model
See more details
|
78.1 mm
•
163.4 mm
•
8.9 mm
Print 3D Model
See more details
|
Weight | 227 g | 233 g |
Usable surface | 89 % | 89 % |
Materials | Glass, Aluminium | Glass, Aluminium, Corning Gorilla Glass Victus 2 |
Resistance | IP68 | IP68 |
Colors |
Black
Silver
Gray
Brown
|
Black
White
Green
Violet
Beige
|
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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Diagonal | 6.8" | 6.8" |
Type | AMOLED • Dynamic Amoled 2x | Super AMOLED • Dynamic AMOLED 2X |
Aspect Ratio | 20:9 | 19.5:9 |
Resolution |
WQHD+ 1440 x 3200 px |
WQHD+ 1440 x 3088 px |
Density | 516 Pixels per inch | 500 Pixels per inch |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
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Model | Samsung Exynos 2100 | Qualcomm Snapdragon 8 Gen2 ( 3,36 GHz) |
CPU | 1x Cortex-X1 2,91 GHz + 3x Cortex-A78 2,81 GHz + 4x Cortex-A55 2,21 GHz. | 1x3.36GHz Cortex-X3 + 4x2.8 GHz Cortex-A715 + 3x2.02 GHz Cortex-A510 |
Type | Octa-Core | Octa-Core |
Manufacturing | 5 nm | 4 nm |
64 Bits | Yes | Yes |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
---|---|---|
GPU | ARM Mali-G78 MC14 | Qualcomm Adreno 740 |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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RAM | 12 GB | 8 GB |
Type | RAM LPDDR5 | RAM LPDDR5X |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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Score |
749.000
Antutu v10
Overall performance better than 85% of devices
See more details
|
1.521.862
Antutu v10
Overall performance better than 96% of devices
See more details
|
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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Capacity | 128 GB | 256 GB |
Type | UFS Storage 3.1 | UFS Storage 4.0 |
SD Slot | No | No |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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Fingerprint | Yes, in screen | Yes, in screen |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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Sensors |
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Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
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Notifications LED | -- | -- |
Cooling system | No | No |
Gaming buttons | No | No |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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No. of cameras | Quad rear camera | Quad rear camera |
1 Camera type |
Standard |
Standard |
Resolution | 108 Mpx | 200 Mpx |
Sensor | Samsung S5KHM3 | Samsung ISOCELL HP2 |
Type | ISOCELL | ISOCELL |
Aperture | ƒ/ 1.8 | ƒ/ 1.7 |
ISO | -- | -- |
Pixel size | 0.80 µm | 0.60 µm |
Pixel Binning | 1-9 (3x3) | 1-4 (2x2) |
Sensor size | 1/1.33" | 1/1.3" |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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Flash | LED | LED |
Optical Stabilisation | Yes | Yes |
Slow Motion Video |
Yes, 960 fps |
Yes, 480 fps |
Others |
|
|
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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SELF Camera type |
Dedicated |
Dedicated |
Resolution | 44 Mpx | 12 Mpx |
Sensor | Samsung S5KGH1 | Samsung S5K3LU |
Type | ISOCELL | ISOCELL |
Aperture | ƒ/ 2.2 | ƒ/ 2.2 |
Pixel size | 0.70 µm | -- |
Pixel Binning | 1-4 (2x2) | -- |
Sensor size | 1/2.65" | -- |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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DxOMark Score |
115 Mobile 121 Photo 100 Video 135 Selfie 133 Photo 140 Video |
140 Mobile 139 Photo 137 Video 141 Selfie 139 Photo 145 Video |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
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5G |
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4G LTE |
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3G |
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2G |
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Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
---|---|---|
Dual SIM | Dual Sim Dual Standby | Dual Sim Dual Standby |
Type |
|
|
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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Wi-Fi |
|
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Others |
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Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
---|---|---|
Version | Bluetooth 5.2 LE Low energy consumption | Bluetooth 5.3 LE Low energy consumption |
Others |
|
|
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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Navigation |
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Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
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USB |
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Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
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European measurement The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue. |
0.710 W/Kg on head
1.580 W/Kg on body |
-- |
American measurement The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue |
-- | -- |
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
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Others |
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|
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
|
---|---|---|
Capacity |
5000 mAh
See more details
|
5000 mAh
See more details
|
Type | Li-Polymer | Li-Polymer |
Fast charge |
Yes, 25.0W |
Yes, 45.0W |
Others |
|
|
Samsung Galaxy S21 Ultra Global · 12GB · 128GB · SM-G998B |
Samsung Galaxy S23 Ultra Global · 8GB · 256GB · SM-S918B |
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Operating System |
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Google Services (official) | Yes | Yes |