Resolution
1440 x 3200 px
Weight
229 g
Samsung Galaxy S21 Ultra features Samsung Exynos 2100 processor, 16GB RAM with 512GB storage, 6.8" display, 5000 mAh battery, 108 MP & 12 MP & 10 MP & 10 MP main camera.
Against the S25, has 42% dimmer display at 1,500 nits compared to S25's's 2,600 nits, and scores 75% lower in performance benchmarks, and includes 4GB more RAM (16GB vs 12GB), and packs a larger 5,000mAh battery (+1,000mAh), and features a larger 6.8" display versus 6.2", and weighs 67g more at 229g. Compared to the S23 Ultra, the S21 Ultra has 14% dimmer display at 1,500 nits compared to S23 Ultra's's 1,750 nits, while scores 48% lower in performance benchmarks. The S24 Ultra has 42% dimmer display at 1,500 nits compared to S24 Ultra's's 2,600 nits, and the Z Fold 7 has 42% dimmer display at 1,500 nits compared to Z Fold 7's's 2,600 nits.
When compared to competing devices, the S21 Ultra scores 80% lower in performance benchmarks, while has 5,000mAh battery compared to 17's 7,000mAh, while features a larger 6.8" display versus 6.3", while weighs 38g more at 229g, while sports a 108MP main camera versus 50MP. Against the Find X6 Pro from Oppo, the S21 Ultra sports a 108MP main camera versus 50MP. Versus the Poco F7 Ultra, the S21 Ultra has 17% dimmer display at 1,500 nits compared to Poco F7 Ultra's's 1,800 nits, and scores 71% lower in performance benchmarks. When matched against the 17 Pro Max from Xiaomi, it offers 512GB storage compared to 1024GB, while the Magic 7 Pro comparison shows it scores 75% lower in performance benchmarks.
Design
| Water resistance i | Waterproof (570 others) |
| Weight i | 229 g (17 others) |
| Thickness i | 8.9 mm (90 others) |
| Width i | 75.6 mm (19 others) |
| Height i | 165.1 mm (10 others) |
| Volume i | 111.09 cm³ |
| Ingress protection (ip) rating i | IP68 (454 others) |
| French repairability index i | 8.2 (33 others) |
Display
| Display Type i | OLED/AMOLED (856 others) |
| Screen Size i | 6.8" (45 others) |
| Pixel Density i | 515 ppi (11 others) |
| Resolution i | 1440 x 3200 px (51 others) |
| Refresh Rate i | 120Hz (553 others) |
| Touch sampling rate i | 120Hz (23 others) |
| Brightness (typical) i | 1500 nits (11 others) |
| Has branded damage resistant glass i | ✔ (899 others) |
| Gorilla glass version i | Gorilla Glass Victus (117 others) |
Performance
| Internal Storage i | 512GB (268 others) |
| RAM i | 16GB (208 others) |
| Antutu benchmark score i | 755462 |
| Chipset (soc) name i | Samsung Exynos 2100 (2 others) |
| Gpu name i | Mali G78 MP14 (2 others) |
| CPU Speed i | 1 x 2.9 GHz & 3 x 2.8 GHz & 4 x 2.2 GHz (Samsung Exynos 2100) (3 others) |
| Geekbench 6 Result (multi) i | 3339 (Samsung Exynos 2100) (3 others) |
| Geekbench 6 Result (single) i | 1334 (Samsung Exynos 2100) (3 others) |
Cameras
| Megapixels (main camera) i | 108 MP & 12 MP & 10 MP & 10 MP |
| Wide aperture (main camera) i | f/1.8 & f/2.2 & f/4.9 & f/2.4 |
| Has a dual lens (or multi lens) main camera i | ✔ (1023 others) |
| Megapixels (front camera) i | 40MP (4 others) |
| Has built in optical image stabilization i | ✔ (811 others) |
| Video recording (main camera) i | 4320 x 24 fps (81 others) |
| Has a dual tone led flash i | ✔ (670 others) |
| Number of flash leds i | 2 (668 others) |
| Has a bsi sensor i | ✔ (576 others) |
Operating system
| Android Version i | Android 14 (225 others) |
| Has clipboard warnings i | ✔ (782 others) |
| Has location privacy options i | ✔ (782 others) |
| Has camera/microphone privacy options i | ✔ (794 others) |
| Has mail privacy protection i | ✖ |
| Has theme customization i | ✔ (758 others) |
| Can block app tracking i | ✔ (782 others) |
| Blocks cross site tracking i | ✖ |
| Has on device machine learning i | ✔ (941 others) |
Battery
| Battery Power i | 5000 mAh (262 others) |
| Has wireless charging i | ✔ (483 others) |
| Supports Fast Charging i | ✔ (1155 others) |
| Charging speed i | 25W (83 others) |
| Wireless charging speed i | 15W (129 others) |
| Has reverse wireless charging i | ✔ (252 others) |
| Reverse wireless charging speed i | 4.5W (64 others) |
| Has a removable battery i | ✖ |
Audio
| Has a socket for a 3.5 mm audio jack i | ✖ |
| Has stereo speakers i | ✔ (890 others) |
| Has aptx i | ✔ (545 others) |
| Has A Radio i | ✖ |
| Number of microphones i | 2 (568 others) |
Connectivity & Features
| Release date i | 4 years ago02/11/2021 (2 others) |
| Has 5g support i | ✔ (734 others) |
| Wi fi version i | Wi-Fi 6E (802.11ax), Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n) (17 others) |
| Sim cards i | 1 SIM, 1 eSIM (131 others) |
| Bluetooth Version i | 5.2 (205 others) |
| Has an external memory slot i | ✖ |
| Has usb type c i | ✔ (1132 others) |
| Usb version i | 3.2 (160 others) |
Miscellaneous
| Has a video light i | ✔ (1099 others) |
| Has Sapphire Glass Display i | ✖ |
| Has A Curved Display i | ✔ (163 others) |
| Has an e paper display i | ✖ |
Similar products
Frequently Asked Questions
How many megapixels does the Samsung Galaxy S21 Ultra front camera have?
At 40MP, the Samsung Galaxy S21 Ultra is 136% above the category average for front camera megapixels, ranking #95 out of 1430 — see ranking phone products.
How many megapixels does the Samsung Galaxy S21 Ultra main camera have?
At 108 MP & 12 MP & 10 MP & 10 MP, the Samsung Galaxy S21 Ultra is 136% above the category average for main camera megapixels, ranking #59 out of 1434 — see ranking phone products.
How much RAM does the Samsung Galaxy S21 Ultra have?
At 16GB, the Samsung Galaxy S21 Ultra is 90% above the category average for RAM, ranking #29 out of 1442 — see ranking phone products.
What is the touch sampling rate of the Samsung Galaxy S21 Ultra?
At 120Hz, the Samsung Galaxy S21 Ultra is 68% below the category average for touch sampling rate, ranking #368 out of 391 — see ranking phone products.
How much storage does the Samsung Galaxy S21 Ultra offer?
At 512GB, the Samsung Galaxy S21 Ultra is 63% above the category average for storage, ranking #174 out of 1441 — see ranking phone products.
How fast does the Samsung Galaxy S21 Ultra charge?
At 25W, the Samsung Galaxy S21 Ultra is 51% below the category average for charging speed, ranking #685 out of 1061 — see ranking phone products.
How fast does the Samsung Galaxy S21 Ultra charge wirelessly?
At 15W, the Samsung Galaxy S21 Ultra is 50% below the category average for wireless charging speed, ranking #203 out of 394 — see ranking phone products.
What is the reverse wireless charging speed of the Samsung Galaxy S21 Ultra?
At 4.5W, the Samsung Galaxy S21 Ultra is 42% below the category average for reverse wireless charging speed, ranking #138 out of 206 — see ranking phone products.
What is the pixel density of the Samsung Galaxy S21 Ultra?
At 515 ppi, the Samsung Galaxy S21 Ultra is 27% above the category average for pixel density, ranking #138 out of 1434 — see ranking phone products.
How bright is the Samsung Galaxy S21 Ultra display?
At 1500 nits, the Samsung Galaxy S21 Ultra is 23% above the category average for display brightness, ranking #141 out of 531 — see ranking phone products.
What is the multi-core Geekbench 6 score of the Samsung Galaxy S21 Ultra?
At 3339 (Samsung Exynos 2100), the Samsung Galaxy S21 Ultra is 17% below the category average for multi-core Geekbench 6 score, ranking #351 out of 850 — see ranking phone products.
What is the AnTuTu benchmark score of the Samsung Galaxy S21 Ultra?
At 755,462, the Samsung Galaxy S21 Ultra is 16% below the category average for AnTuTu score, ranking #357 out of 899 — see ranking phone products.
Does the Samsung Galaxy S21 Ultra have wireless charging?
Yes, the Samsung Galaxy S21 Ultra has wireless charging. Only 38% of phones have this feature.
Does the Samsung Galaxy S21 Ultra have an external memory slot?
No, the Samsung Galaxy S21 Ultra does not have an external memory slot. This feature is available in 57% of phones.
Does the Samsung Galaxy S21 Ultra have a BSI sensor?
Yes, the Samsung Galaxy S21 Ultra has a BSI sensor. This feature is found in 47% of phones.
Does the Samsung Galaxy S21 Ultra have a 3.5mm headphone jack?
No, the Samsung Galaxy S21 Ultra does not have a 3.5mm headphone jack. This feature is available in 52% of phones.
Does the Samsung Galaxy S21 Ultra have a dual-tone LED flash?
Yes, the Samsung Galaxy S21 Ultra has a dual-tone LED flash. This feature is found in 53% of phones.
Does the Samsung Galaxy S21 Ultra support 5G?
Yes, the Samsung Galaxy S21 Ultra supports 5G. This feature is found in 54% of phones.
Does the Samsung Galaxy S21 Ultra have a built-in radio?
No, the Samsung Galaxy S21 Ultra does not have a built-in radio. This feature is available in 45% of phones.
Does the Samsung Galaxy S21 Ultra have optical image stabilization (OIS)?
Yes, the Samsung Galaxy S21 Ultra has OIS. This feature is found in 63% of phones.
Does the Samsung Galaxy S21 Ultra have stereo speakers?
Yes, the Samsung Galaxy S21 Ultra has stereo speakers. This feature is found in 69% of phones.
Does the Samsung Galaxy S21 Ultra have a multi-lens camera?
Yes, the Samsung Galaxy S21 Ultra has a multi-lens camera. This feature is found in 84% of phones.
How does it compare?
How does the Samsung Galaxy S21 Ultra's AnTuTu score compare to similar phoness?
At 755,462, the Samsung Galaxy S21 Ultra trails the Xiaomi 17 (3,860,000) by 80%.
How does the Samsung Galaxy S21 Ultra's reverse wireless charging speed compare to similar phoness?
At 4.5W, the Samsung Galaxy S21 Ultra trails the Xiaomi 17 (22.5W) by 80%.
How does the Samsung Galaxy S21 Ultra's charging speed compare to similar phoness?
At 25W, the Samsung Galaxy S21 Ultra trails the Xiaomi Poco F7 Ultra (120W) by 79%.
How does the Samsung Galaxy S21 Ultra's touch sampling rate compare to similar phoness?
At 120Hz, the Samsung Galaxy S21 Ultra trails the Xiaomi Poco F7 Ultra (480Hz) by 75%.
How does the Samsung Galaxy S21 Ultra's wireless charging speed compare to similar phoness?
At 15W, the Samsung Galaxy S21 Ultra trails the Xiaomi 17 (50W) by 70%.
How does the Samsung Galaxy S21 Ultra's multi-core Geekbench 6 score compare to similar phoness?
At 3339 (Samsung Exynos 2100), the Samsung Galaxy S21 Ultra trails the Xiaomi 17 (10059 (Qualcomm Snapdragon 8 Elite Gen 5)) by 67%.
How does the Samsung Galaxy S21 Ultra's single-core Geekbench 6 score compare to similar phoness?
At 1334 (Samsung Exynos 2100), the Samsung Galaxy S21 Ultra trails the Xiaomi 17 (3234 (Qualcomm Snapdragon 8 Elite Gen 5)) by 59%.
How does the Samsung Galaxy S21 Ultra's main camera megapixels compare to similar phoness?
At 108 MP & 12 MP & 10 MP & 10 MP, the Samsung Galaxy S21 Ultra leads the Xiaomi 17 (50 MP & 50 MP & 50 MP) by 54%.
How does the Samsung Galaxy S21 Ultra's battery capacity compare to similar phoness?
At 5000 mAh, the Samsung Galaxy S21 Ultra trails the Xiaomi 17 (7000 mAh) by 29%.
How does the Samsung Galaxy S21 Ultra's pixel density compare to similar phoness?
At 515 ppi, the Samsung Galaxy S21 Ultra leads the Asus Zenfone 12 Ultra (388 ppi) by 25%.
How does the Samsung Galaxy S21 Ultra's front camera megapixels compare to similar phoness?
At 40MP, the Samsung Galaxy S21 Ultra trails the Xiaomi 17 (50MP) by 20%.
How does the Samsung Galaxy S21 Ultra's display brightness compare to similar phoness?
At 1500 nits, the Samsung Galaxy S21 Ultra trails the Xiaomi Poco F7 Ultra (1800 nits) by 17%.