Samsung Galaxy S25 Ultra vs Samsung Galaxy S21 Ultra 5G Comparison and Differences
Smartphone 1
Samsung Galaxy S25 Ultra
Smartphone 2
Samsung Galaxy S21 Ultra 5G
Smartphone 3
Samsung Galaxy S25 Ultra or Samsung Galaxy S21 Ultra 5G Specs Comparison
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Common specs
| Brand and model | Samsung Galaxy S25 Ultra | Samsung Galaxy S21 Ultra 5G | |
| Rating | (+0) | (+0) | |
| Release date | 2025, January 22 | 2021, January 14 | |
| Dimensions (HxWxD) | 162.8 x 77.6 x 8.2 mm | 6.41 x 6.41 x 3.06 in | 165.1 x 75.6 x 8.9 mm | 6.5 x 6.5 x 2.98 in | |
| Weight | 218 g | 7.69 oz | 227 g | 8.01 oz | |
| Body Build | Glass front (Corning Gorilla Armor 2), glass back (Corning Gorilla Armor 2), titanium frame (grade 5) | Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame | |
| Case | buy from Amazon | buy from Amazon | |
| Colors | Titanium Silver Blue, Titanium Black, Titanium White Silver, Titanium Gray, Titanium Jade Green, Titanium Jet Black, Titanium Pink Gold | Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown | |
| Battery | 5000 mAh, Li-Ion | 5000 mAh, Li-Ion, non-removable | |
| Approximate price | € 1,449 | $ 960 | |
| Check price | from Amazon | from Amazon |
Screen
| Technology | Dynamic LTPO AMOLED 2X | Dynamic AMOLED 2X | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | |
| Display colors | 16M | 16M | |
| Screen size | 6.9" in | 6.8" in | |
| Screen area | 116.9 cm2 | 112.1 cm2 | |
| Screen format | 19.5:9 (height:width) | 20:9 (height:width) | |
| Screen to body ratio | 92.5% | 89.8% | |
| Screen resolution | 1440 x 3120 px | 1440 x 3200 px | |
| Screen PPI /points per inch/ | 498 PPI | 515 PPI | |
| Screen protection | Corning Gorilla Armor 2 | Corning Gorilla Glass Victus | |
| Other specs | - 120Hz, HDR10+, 2600 nits (peak) -Always-on display |
- Always-on display -120Hz -HDR10+ -1500 nits (peak) |
|
| Screen protector | buy from Amazon | buy from Amazon |
Camera and Video
| Rear camera, main | 200 MP, Quad | 108 MP, Quad | |
| Camera specs | -200 MP, f/1.7, 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS -10 MP, f/2.4, 67mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x optical zoom -50 MP, f/3.4, 111mm (periscope telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x optical zoom -50 MP, f/1.9, 120˚ (ultrawide), 0.7µm, dual pixel PDAF, Super Steady video |
-108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS -10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom -10 MP, f/2.4, 70mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom -12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video |
|
| Functions | Laser AF, Best Face, LED flash, auto-HDR, panorama | LED flash, auto-HDR, panorama | |
| Video | 8K@24/30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 10-bit HDR, HDR10+, stereo sound rec., gyro-EIS | 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS | |
| DxOMark Main Score | 146 | 121 | |
| DxOMark Photo | 144 | 128 | |
| DxOMark Video | 143 | 98 | |
| Front camera, selfie | 12 MP, Single | 40 MP, Single | |
| Specifications | 12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF | 40 MP, f/2.2, 26mm (wide), 1/2.8'', 0.7µm, PDAF | |
| Functions | HDR, HDR10+ | Dual video call, Auto-HDR | |
| Video | 4K@30/60fps, 1080p@30fps | 4K@30/60fps, 1080p@30fps | |
| DxOMark Selfie Score | 101 | ||
| DxOMark Photo | 104 | ||
| DxOMark Video | 95 |
Performance
| Operating system - OS | Android 15, up to 7 major Android upgrades, One UI 7 | Android 11, One UI 3.1 | |
| Chipset | - Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) | - Exynos 2100 (5 nm) - Qualcomm SM8350 Snapdragon 888 (5 nm) - USA/China |
|
| CPU | - Octa-core (2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M) | - Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International -Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 - USA/China |
|
| GPU | Adreno 830 | Mali-G78 MP14 - International Adreno 660 - USA/China |
|
| External memory | No | No | |
| Internal memory | 256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM, 1TB 16GB RAM | 128GB 12GB RAM, 256GB 12GB RAM, 512GB 16GB RAM |
Benchmark
| Antutu 10 Total | 744835 | ||
| Antutu 10 CPU | 199654 | ||
| Antutu 10 GPU | 229735 | ||
| Antutu 10 Mem | 150252 | ||
| Antutu 10 UX | 199654 | ||
| Antutu 8 Total | 638987 | ||
| GeekBench 5 Single Core | 960 | ||
| GeekBench 5 Multi-Core | 3177 |
Communication and Connectivity
| SIM card | Single SIM (Nano-SIM and/or eSIM)Dual SIM (Nano-SIM and/or eSIM, dual stand-by) | ||
| Network | GSM / CDMA / HSPA / EVDO / LTE / 5G | GSM / CDMA / HSPA / EVDO / LTE / 5G | |
| Bands | -2G - GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1900 & TD-SCDMA -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO -4G - 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 48, 66, 71 - USA unlocked -5G - 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International 1, 2, 5, 7, 25, 28, 41, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - USA unlocked |
-2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only) CDMA 800 / 1900 & TD-SCDMA -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE -5G - SA/NSA/Sub6/mmWave |
|
| Speed | HSPA, LTE (up to 7CA), 5G | HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G | |
| GPRS | Yes | Yes | |
| Edge | Yes | Yes | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot | |
| GPS | GPS, GLONASS, BDS, GALILEO, QZSS | Yes, with A-GPS, GLONASS, BDS, GALILEO | |
| NFC | Yes | Yes | |
| USB | USB Type-C 3.2, DisplayPort 1.2, OTG | USB Type-C 3.2, USB On-The-Go | |
| Bluetooth | 5.4, A2DP, LE | 5.2, A2DP, LE | |
| Harmful irradiation |
SAR - 1.26 W/kg (head) 0.64 W/kg (body) SAR EU - 1.25 W/kg (head) 1.42 W/kg (body) |
SAR - 0.77 W/kg (head) 1.02 W/kg (body) SAR EU - 0.77 W/kg (head) 1.02 W/kg (body) |
Music and Audio
| Radio | No | FM radio (Snapdragon only) | |
| Headphone jack | No | No | |
| Others | - 32-bit/384kHz audio -Tuned by AKG |
- 32-bit/384kHz audio -Tuned by AKG |
Other features
| Sensors | - Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer | - Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer | |
| Other extras |
- Samsung DeX, Samsung Wireless DeX (desktop experience support) -Ultra Wideband (UWB) support -Circle to Search - 45W Fast charging, Power Delivery 3.0, 65% in 30 min -15W Wireless charging (Qi2.1) -4.5W Reverse wireless charging - IP68 dust/water resistant (up to 1.5m for 30 min) -Stylus |
- Samsung DeX, Samsung Wireless DeX (desktop experience support) -ANT+ -Bixby natural language commands and dictation - Fast charging 25W -USB Power Delivery 3.0 -Fast Qi/PMA wireless charging 15W -Reverse wireless charging 4.5W - Samsung Pay (Visa, MasterCard certified) -Ultra Wideband (UWB) support -IP68 dust/water resistant (up to 1.5m for 30 mins) -Stylus support |
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| Versions |
- Versions: SM-G998B, SM-G998B/DS (International); SM-G998U (USA); SM-G998U1 (USA unlocked); SM-G998W (Canada); SM-G998N (Korea); SM-G9980 (China) |
Reviews and Opinions on Samsung Galaxy S25 Ultra and Samsung Galaxy S21 Ultra 5G
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