Samsung Galaxy S21 Ultra 5G vs Xiaomi 12 Comparison and Differences
Smartphone 1

Samsung Galaxy S21 Ultra 5G
Smartphone 2

Xiaomi 12
Smartphone 3
Samsung Galaxy S21 Ultra 5G or Xiaomi 12 Specs Comparison
or
Common specs
Brand and model | Samsung Galaxy S21 Ultra 5G | Xiaomi 12 | |
Rating | (+) | (+) | |
Release date | 2021, January 14 | December, 2021 | |
Dimensions (HxWxD) | 165.1 x 75.6 x 8.9 mm | 6.5 x 6.5 x 2.98 in | 152.7 x 69.9 x 8.2 mm | 6.01 x 6.01 x 2.75 in | |
Weight | 227 g | 8.01 oz | 179 g | 6.31 oz | |
Body Build | Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame | Glass front (Gorilla Glass Victus), glass back (Gorilla Glass 5) | |
Case | buy from Amazon | buy from Amazon | |
Colors | Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown | Gray, Blue, Purple, Green | |
Battery | 5000 mAh, Li-Ion, non-removable | 4500 mAh, Li-Po | |
Approximate price | $ 960 | 980 EUR | |
Check price | from Amazon | from Amazon |
Screen
Technology | Dynamic AMOLED 2X | AMOLED | |
Touchscreen | capacitive touchscreen | capacitive touchscreen | |
Display colors | 16M | 68B | |
Screen size | 6.8" in | 6.28" in | |
Screen area | 112.1 cm2 | 95.2 cm2 | |
Screen format | 20:9 (height:width) | 20:9 (height:width) | |
Screen to body ratio | 89.8% | 89.2% | |
Screen resolution | 1440 x 3200 px | 1080 x 2400 px | |
Screen PPI /points per inch/ | 515 PPI | 419 PPI | |
Screen protection | Corning Gorilla Glass Victus | Corning Gorilla Glass 7 Victus | |
Other specs | - Always-on display -120Hz -HDR10+ -1500 nits (peak) |
- 120Hz -Dolby Vision -HDR10+ -1100 nits (peak) |
|
Screen protector | buy from Amazon | buy from Amazon |
Camera and Video
Rear camera, main | 108 MP, Quad | 50 MP, Triple | |
Camera specs | -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 |
-50 MP, f/1.9, 26mm (wide), 1/1.56", 1.0µm, PDAF, OIS -13 MP, f/2.4, 12mm, 123˚ (ultrawide), 1/3.06", 1.12µm -5 MP, f/2.4, 50mm (telephoto macro), AF |
|
Functions | LED flash, auto-HDR, panorama | Dual-LED dual-tone flash, HDR, panorama | |
Video | 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS | 8K@24fps (HDR), 4K@30/60fps (HDR10+), 1080p@30/120/240/960fps, 720p@1920fps, gyro-EIS | |
DxOMark Main Score | 121 | 123 | |
DxOMark Photo | 128 | 131 | |
DxOMark Video | 98 | 95 | |
Front camera, selfie | 40 MP, Single | 32 MP, Single | |
Specifications | 40 MP, f/2.2, 26mm (wide), 1/2.8'', 0.7µm, PDAF | 32 MP, f/2.5, 26mm (wide), 0.7µm | |
Functions | Dual video call, Auto-HDR | HDR, panorama | |
Video | 4K@30/60fps, 1080p@30fps | 1080p@30/60fps, 720p@120fps, HDR | |
DxOMark Selfie Score | 101 | ||
DxOMark Photo | 104 | ||
DxOMark Video | 95 |
Performance
Operating system - OS | Android 11, One UI 3.1 | Android 11 Red Velvet Cake | |
Chipset | - Exynos 2100 (5 nm) - Qualcomm SM8350 Snapdragon 888 (5 nm) - USA/China |
- Qualcomm SM8450 Snapdragon 8 Gen 1 (4 nm) | |
CPU | - 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 |
- Octa-core (1x3.00 GHz Cortex-X2 & 3x2.50 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510) | |
GPU | Mali-G78 MP14 - International Adreno 660 - USA/China |
Adreno 730 | |
External memory | No | No | |
Internal memory | 128GB 12GB RAM, 256GB 12GB RAM, 512GB 16GB RAM | 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM |
Benchmark
Antutu 10 Total | 744835 | 1163966 | |
Antutu 10 CPU | 199654 | 304568 | |
Antutu 10 GPU | 229735 | 413638 | |
Antutu 10 Mem | 150252 | 212719 | |
Antutu 10 UX | 199654 | 304568 | |
Antutu 9 Total | 1030008 | ||
Antutu 8 Total | 638987 | ||
GeekBench 5 Single Core | 960 | 1231 | |
GeekBench 5 Multi-Core | 3177 | 4092 |
Communication and Connectivity
SIM card | Single SIM (Nano-SIM and/or eSIM)Dual SIM (Nano-SIM and/or eSIM, dual stand-by) | Dual SIM, dual stand-by (Nano SIM + Nano SIM) | |
Network | GSM / CDMA / HSPA / EVDO / LTE / 5G | 2G / 3G / 4G / 5G | |
Bands | -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 |
-2G - B2 (1900), B3 (1800), B5 (850), B8 (900) -3G - B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B8 (900) -4G - B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B13 (700), B17 (700), B18 (800), B19 (800), B20 (800), B25 (1900+), B26 (850), B28b (700), B28a (700), B29 (700), B32 (1500), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100) -5G - n1 (2100), n3 (1800), n5 (850), n7 (2600), n8 (900), n20 (800), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n77 (3700), n78 (3500) |
|
Speed | 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, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot | |
GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with A-GPS. Up to tri-band: GLONASS (1), BDS (3), GALILEO (2), QZSS (2), NavIC | |
NFC | Yes | Yes (market/region dependent) | |
USB | USB Type-C 3.2, USB On-The-Go | USB Type-C 2.0, USB On-The-Go | |
Bluetooth | 5.2, A2DP, LE | 5.2, A2DP, LE | |
Harmful irradiation |
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 | FM radio (Snapdragon only) | No | |
Headphone jack | No | No | |
Others | - 32-bit/384kHz audio -Tuned by AKG |
- 24-bit/192kHz audio -Tuned by Harman Kardon |
Other features
Sensors | - Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer | - Fingerprint (under display, optical), accelerometer, proximity, gyro, compass, color spectrum , Infrared port | |
Other extras |
- 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 |
- Fast charging 67W, 100% in 39 min -Fast wireless charging 50W, 100% in 53 min -Reverse wireless charging 10W -Power Delivery 3.0 -Quick Charge 4+ |
|
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 S21 Ultra 5G and Xiaomi 12
If you had to recommend one of these phones to a friend, which one would it be and why? Share your arguments using the Add Opinion button!