Xiaomi 12X vs Samsung Galaxy S20 Ultra
73
out of 100
VS
71
out of 100
Here we compared two flagship smartphones: the 6.28-inch Xiaomi 12X (with Qualcomm Snapdragon 870) that was released on December 28, 2021, against the Samsung Galaxy S20 Ultra, which is powered by Exynos 990 and came out 23 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
Key differences
Reasons to consider the Xiaomi 12X
- Shows 35% longer battery life (35:28 vs 26:19 hours)
- Newer Bluetooth version (v5.1)
- Supports higher wattage charging (67W versus 45W)
- 13% better performance in AnTuTu Benchmark (806K versus 711K)
- The phone is 1-year and 11-months newer
- Faster storage type - UFS 3.1 versus UFS 3.0
- Weighs 44 grams less
- Better grip in hands – the body is 6.1 mm narrower
- 8% faster in single-core GeekBench 6 test: 1255 and 1165 points
- Has a built-in infrared port
Reasons to consider the Samsung Galaxy S20 Ultra
- Waterproof body (IP68 classification)
- The rear camera has a 4x optical zoom
- Has a 0.62 inch larger screen size
- Handles wireless charging up to 15W
- Expandable storage via MicroSD card up to 1000GB
- Comes with 500 mAh larger battery capacity: 5000 vs 4500 mAh
- 22% higher pixel density (511 vs 419 PPI)
- Reverse charging feature
- The front-facing camera can record video at 4K
Review
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Value for money
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | AMOLED | Dynamic AMOLED |
| Size | 6.28 inches | 6.9 inches |
| Resolution | 1080 x 2400 pixels | 1440 x 3200 pixels |
| Aspect ratio | 20:9 | 20:9 |
| PPI | 419 ppi | 511 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | No | No |
| Max rated brightness | 500 nits | 800 nits |
| Max rated brightness in HDR | 1100 nits | - |
| HDR support | Yes, HDR10+ | Yes, HDR10+ |
| Screen protection | Gorilla Glass Victus | Corning Gorilla Glass 6 |
| Screen-to-body ratio | 89.2% | 89.9% |
| Display features |
- DCI-P3
- Always-On Display - DC Dimming |
- DCI-P3
- Always-On Display |
| RGB color space | 98.6% | 99.2% |
| PWM | 523 Hz | 240 Hz |
| Response time | 1 ms | 6.2 ms |
| Contrast | ∞ Infinity | ∞ Infinity |
Peak brightness test (auto)
Design and build
| Height | 152.7 mm (6.01 inches) | 166.9 mm (6.57 inches) |
| Width | 69.9 mm (2.75 inches) | 76 mm (2.99 inches) |
| Thickness | 8.16 mm (0.32 inches) | 8.8 mm (0.35 inches) |
| Weight | 176 g (6.21 oz) | 220 g (7.76 oz) |
| Waterproof | No | IP68 |
| Advanced cooling | - | Vapor chamber |
| Rear material | Glass | Glass |
| Frame material | Metal | Metal |
| Colors | Black, Blue, Pink | Black, Gray |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 870 | Samsung Exynos 990 |
| Max clock | 3200 MHz | 2730 MHz |
| CPU cores | 8 (1 + 3 + 4) | 8 (2 + 2 + 4) |
| Architecture |
- 4 cores at 1.8 GHz: Kryo 585 Silver (Cortex-A55)
- 3 cores at 2.42 GHz: Kryo 585 Gold (Cortex-A77) - 1 core at 3.2 GHz: Kryo 585 Prime (Cortex-A77) |
- 4 cores at 2 GHz: Cortex-A55
- 2 cores at 2.5 GHz: Cortex-A76 - 2 cores at 2.73 GHz: Exynos M5 |
| L3 cache | 4 MB | 2 MB |
| Lithography process | 7 nanometers | 7 nanometers |
| Graphics | Adreno 650 | Mali-G77 MP11 |
| GPU shading units | 1024 | 704 |
| GPU clock | 670 MHz | 800 MHz |
| FLOPS | ~1372.1 GFLOPS | ~1126 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
| CPU | 230693 | 202750 |
| GPU | 219195 | 219003 |
| Memory | 151434 | 130201 |
| UX | 202860 | 157575 |
| Total score | 806981 | 711852 |
3DMark Wild Life Performance
| Max surface temperature | 37.6 °C | 38.6 °C |
| Stability | 98% | 53% |
| Graphics test | 25 FPS | 25 FPS |
| Graphics score | 4254 | 4319 |
PCMark 3.0
| Web score | - | 8802 |
| Video editing | - | 6175 |
| Photo editing | - | 31559 |
| Data manipulation | - | 8779 |
| Writing score | - | 12443 |
Memory
| RAM size | 8, 12 GB | 12, 16 GB |
| Memory type | LPDDR5 | LPDDR5 |
| Memory clock | - | 3200 MHz |
| Channels | 2 | 2 |
| Storage size | 128, 256 GB | 128, 512 GB |
| Storage type | UFS 3.1 | UFS 3.0 |
| Memory card | No | MicroSD |
| Memory card max size | - | Up to 1000 GB |
Software
| Operating system | Android 11 (Can be upgraded to Android 13) | Android 10.0 (Can be upgraded to Android 13) |
| ROM | MIUI 14 | One UI 4.1 |
| OS size | 29.3 GB | 23.7 GB |
Battery
| Capacity | 4500 mAh | 5000 mAh |
| Max charge power | 67 W | 45 W |
| Battery type | Li-Po | Li-Ion |
| Replaceable | No | No |
| Wireless charging | No | Yes (15 W) |
| Reverse charging | No | Yes, (wireless) |
| Fast charging | Yes (78% in 30 min) | Yes (100% in 80 min) |
| Full charging time | 0:48 hr | 1:20 hr |
| Web browsing | 13:05 hr | 08:26 hr |
| Watching video | 16:44 hr | 11:53 hr |
| Gaming | 05:31 hr | 04:13 hr |
| Standby | 104 hr | 93 hr |
General battery life
Camera
| Matrix | 50 megapixels | 108 megapixels |
| Image resolution | 8700 x 5800 | 12032 x 9204 |
| Zoom | Digital | Optical, 4x |
| Flash | Dual LED | LED |
| Stabilization | Optical | Optical |
| 8K video recording | Up to 24FPS | Up to 24FPS |
| 4K video recording | Up to 60FPS | Up to 60FPS |
| 1080p video recording | Up to 60FPS | Up to 60FPS |
| Slow motion | 960 FPS (720p) | 960 FPS (720p) |
| Angle of widest lens | 123° | 120° |
| Lenses | 3 (50 MP + 13 MP + 5 MP) | 4 (108 MP + 48 MP + 12 MP + 0.3 MP) |
| Wide (main) lens |
- 50 MP
- Aperture: f/1.9 - Focal length: 26 mm - Pixel size: 1 micron - Sensor: 1/1.56", Sony IMX766 (Exmor-RS CMOS) - Phase autofocus (Dual Pixel) - Optical stabilization |
- 108 MP
- Aperture: f/1.8 - Focal length: 26 mm - Pixel size: 0.8 micron - Sensor: 1/1.33", Samsung Bright S5KHM1 (ISOCELL CMOS) - Phase autofocus (Dual Pixel) - Optical stabilization |
| Telephoto lens | - |
- 48 MP
- Aperture: f/3.5 - Focal length: 103 mm - Pixel size: 0.8 micron - Sensor: 1/2", Sony IMX586 (CMOS) - Phase autofocus - Optical stabilization |
| Ultra-wide lens |
- 13 MP
- Aperture: f/2.4 - Pixel size: 1.12 micron - Sensor: 1/3.06", OmniVision OV13B10 (CMOS) |
- 12 MP
- Aperture: f/2.2 - Focal length: 13 mm - Pixel size: 1.4 micron |
| Macro lens |
- 5 MP
- Aperture: f/2.4 - Focal length: 50 mm - Pixel size: 1.12 micron - Phase autofocus - Optical stabilization |
- |
| Depth lens | - |
- 0.3 MP
- Aperture: f/1.0 - Pixel size: 5 micron |
| Camera features |
- Bokeh mode
- Pro mode |
- Bokeh mode
- Pro mode - RAW support |
| Megapixels | 32 megapixels | 40 megapixels |
| Image resolution | 6528 x 4896 | 7864 x 5200 |
| Aperture | f/2.4 | f/2.2 |
| Focal length | 26 mm | 26 mm |
| Pixel size | 0.7 microns | 0.7 microns |
| Sensor type | CMOS | CMOS |
| Sensor size | 1/3" | 1/2.65" |
| Video resolution | 1080p (Full HD) at 60 FPS | 2160p (4K) at 60 FPS |
Connectivity
| Wi-Fi standard | Wi-Fi 6 (802.11 a/b/g/n/ac/ax) | Wi-Fi 6 (802.11 b/g/n/ac/ax) |
| Wi-Fi features |
- Dual Band
- Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Wi-Fi Direct
- Wi-Fi Display |
| Bluetooth version | 5.1 | 5 |
| Bluetooth features | LE | LE, A2DP |
| USB type | USB Type-C | USB Type-C |
| USB version | 2 | 3.1 |
| USB features |
- Charging
- USB-Storage mode - OTG |
- Charging
- USB-Storage mode - OTG |
| GPS | GPS, GLONASS, Beidou, Galileo, NAVIC | GPS, GLONASS, Beidou, Galileo |
| NFC * | Depends on the region | Yes |
| Infrared port | Yes | No |
| Number of SIM * | 2 | 2 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support * | - | Yes |
| Hybrid slot | No | Yes |
| LTE Cat * | - | 22 |
| 5G support | Yes | Yes |
Sound
| Speakers | Stereo | Stereo |
| Headphone audio jack | No | No |
| FM radio | No | No |
| Dolby Atmos | Yes | Yes |
Speakers test
Max loudness
Other
| Category | Flagship | Flagship |
| Announced | December 2021 | February 2020 |
| Release date | December 2021 | March 2020 |
| SAR (head) | - | 0.32 W/kg |
| SAR (body) | - | 1.56 W/kg |
| Sensors |
- Proximity sensor
- Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Hall-effect sensor
- Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Yes, 67 W | - |
*
Disclaimer!
NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
If the battery life is more important to you, then choose the Xiaomi 12X . But if the camera, connectivity, and design are more of a priority – go for the Samsung Galaxy S20 Ultra .
