Xiaomi 15 Ultra vs 14 Ultra
Here we compared two flagship smartphones: the 6.73-inch Xiaomi 15 Ultra (with Qualcomm Snapdragon 8 Elite) that was released on February 27, 2025, against the Xiaomi 14 Ultra, which is powered by Qualcomm Snapdragon 8 Gen 3 and came out 1 year and 1 month 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 15 Ultra
- Comes with 1000 mAh larger battery capacity: 6000 vs 5000 mAh
- Newer Bluetooth version (v6.0)
- 35% better performance in AnTuTu Benchmark (2742K versus 2033K)
- Faster storage type - UFS 4.1 versus UFS 4.0
- 37% faster in single-core GeekBench 6 test: 3008 and 2197 points
- Ready for eSIM technology
Reasons to consider the Xiaomi 14 Ultra
- The rear camera has a 5x optical zoom
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
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
Choose the importance of each parameter to more accurately identify the smartphone that best meets your particular needs.
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | AMOLED | AMOLED |
| Size | 6.73 inches | 6.73 inches |
| Resolution | 1440 x 3200 pixels | 1440 x 3200 pixels |
| Aspect ratio | 20:9 | 20:9 |
| PPI | 522 ppi | 522 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | Yes (1-120 Hz) | Yes (1-120 Hz) |
| Max rated brightness | - | 3000 nits |
| Max rated brightness in HDR | 3200 nits | - |
| HDR support | Yes, Dolby Vision | Yes, Dolby Vision |
| Touch sampling rate | 300 Hz | 240 Hz |
| Screen protection | Xiaomi Shield Glass 2.0 | Xiaomi Shield Glass |
| Screen-to-body ratio | 90% | 89.9% |
| Display features | - DCI-P3 - Always-On Display - DC Dimming | - DCI-P3 - Always-On Display - DC Dimming |
| RGB color space | - | 98.9% |
| PWM | - | 120 Hz |
| Response time | - | 1 ms |
| Contrast | - | ∞ Infinity |
Peak brightness test (auto)
Design and build
| Height | 161.3 mm (6.35 inches) | 161.4 mm (6.35 inches) |
| Width | 75.3 mm (2.96 inches) | 75.3 mm (2.96 inches) |
| Thickness | 9.35 mm (0.37 inches) | 9.2 mm (0.36 inches) |
| Weight | 226 g (7.97 oz) | 219.8 g (7.75 oz) |
| Waterproof | IP68 | IP68 |
| Advanced cooling | Vapor chamber | Vapor chamber |
| Rear material | Glass | Glass |
| Frame material | Metal | Metal |
| Colors | White, Black, Silver, Green | White, Black |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Gen 3 |
| Max clock | 4320 MHz | 3300 MHz |
| CPU cores | 8 (2 + 6) | 8 (1 + 3 + 2 + 2) |
| Architecture | - 6 cores at 3.53 GHz: Oryon (Phoenix M) - 2 cores at 4.32 GHz: Oryon (Phoenix L) | - 2 cores at 2.27 GHz: Cortex-A520 - 2 cores at 2.96 GHz: Cortex-A720 - 3 cores at 3.15 GHz: Cortex-A720 - 1 core at 3.3 GHz: Cortex-X4 |
| L3 cache | - | 12 MB |
| Manufacturing | TSMC | TSMC |
| Lithography process | 3 nanometers | 4 nanometers |
| Neural processor (NPU) | Hexagon | Hexagon |
| Graphics | Adreno 830 | Adreno 750 |
| GPU shading units | 1536 | 1536 |
| GPU clock | 1100 MHz | 903 MHz |
| FLOPS | ~3379.2 GFLOPS | ~2774 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| Geekbench Compute (GPU) | - | 16435 |
| Single-core score | 3008 | 2197 |
| Multi-core score | 9065 | 7058 |
AnTuTu Benchmark 10
| CPU | 604150 | 450321 |
| GPU | 1162963 | 867551 |
| Memory | 541237 | 404276 |
| UX | 434049 | 311241 |
| Total score | 2742399 | 2033389 |
| Samples | Less than 3 | [5 tests] |
3DMark Wild Life Performance
| Max surface temperature | - | 47.7 °C |
| Stability | - | 86% |
| Graphics test | - | 92 FPS |
| Graphics score | - | 15437 |
PCMark 3.0
| Web score | - | 14875 |
| Video editing | - | 7928 |
| Photo editing | - | 32357 |
| Data manipulation | - | 15940 |
| Writing score | - | 19552 |
Memory
| RAM size | 12, 16 GB | 12, 16 GB |
| Memory type | LPDDR5X | LPDDR5X |
| Memory clock | 5333 MHz | 4200 MHz |
| Channels | 2 | 4 |
| Storage size | 256, 512, 1024 GB | 256, 512, 1024 GB |
| Storage type | UFS 4.1 | UFS 4.0 |
| Memory card | No | No |
Software
| Operating system | Android 15 | Android 14 (Can be upgraded to Android 15) |
| ROM | HyperOS 2.0 | HyperOS 2.0 |
| OS size | - | 31 GB |
Battery
| Capacity | 6000 mAh | 5000 mAh |
| Max charge power | 90 W | 90 W |
| Battery type | Silicon-Carbon (Si/C) | Li-Po |
| Replaceable | No | No |
| Wireless charging | Yes (80 W) | Yes (80 W) |
| Reverse charging | Yes, (wireless) | Yes, (wireless) |
| Fast charging | Yes | Yes (52% in 15 min) |
| Full charging time | - | 0:34 hr |
| Web browsing | - | 09:23 hr |
| Watching video | - | 12:26 hr |
| Gaming | - | 04:35 hr |
| Standby | - | 109 hr |
General battery life
Main camera
| Matrix | 50 megapixels | 50 megapixels |
| Image resolution | 8192 x 6144 | 8192 x 6144 |
| Zoom | Optical, 4.3x | Optical, 5x |
| Flash | Dual LED | Dual LED |
| Stabilization | Optical | Optical |
| 8K video recording | Up to 30FPS | Up to 30FPS |
| 4K video recording | Up to 120FPS | Up to 120FPS |
| 1080p video recording | Up to 60FPS | Up to 60FPS |
| Slow motion | 1920 FPS (1080p) | 1920 FPS (1080p) |
| Angle of widest lens | 115° | 122° |
| Lenses | 1) Standard: 50 MP 2) Telephoto: 50 MP 3) Telephoto: 200 MP 4) Ultrawide: 50 MP 5) Depth | 1) Standard: 50 MP 2) Telephoto: 50 MP 3) Telephoto: 50 MP 4) Ultrawide: 50 MP 5) Depth |
| Camera features | - Bokeh mode - Pro mode - RAW support | - Bokeh mode - Pro mode - RAW support |
| Image resolution | 50 MP | 50 MP |
| Aperture | f/1.6 | f/1.6 - 4.0 |
| Focal length | 23 mm | 23 mm |
| Sensor | Sony LYT-900 | Sony LYT-900 |
| Sensor size | 1/1.0" | 1/1.0" |
| Pixel size | 1.6 micron | 1.6 micron |
| Autofocus | Laser autofocus | Laser autofocus |
| Stabilization | Optical | Optical |
| Image resolution | 50 MP | 50 MP |
| Aperture | f/1.8 | f/1.8 |
| Focal length | 70 mm | 120 mm |
| Sensor | Sony IMX858 | Sony IMX858 |
| Sensor size | 1/2.51" | 1/2.51" |
| Pixel size | 0.7 micron | 0.7 micron |
| Stabilization | Optical | Optical |
| Image resolution | 50 MP | 50 MP |
| Aperture | f/2.2 | f/1.8 |
| Focal length | 14 mm | 12 mm |
| Sensor | Samsung S5KJN5 | Sony IMX858 |
| Sensor size | 1/2.76" | 1/2.51" |
| Pixel size | 0.64 micron | 0.7 micron |
| Stabilization | Digital | Digital |
DxOMark main camera tests
Photo quality
Video quality
Generic main camera score
| Bokeh | - | 75 |
| Preview | - | 83 |
| Zoom | - | 160 |
| Samples | - | Photo samples of Xiaomi 14 Ultra from DxOMark |
Selfie camera
| Megapixels | 32 megapixels | 32 megapixels |
| Image resolution | 6528 x 4896 | 6528 x 4896 |
| Aperture | f/2.0 | f/2.0 |
| Focal length | 21 mm | 22 mm |
| Sensor | Omnivision OV32B | Omnivision OV32B |
| Sensor size | 1/3.14" | 1/3.14" |
| Pixel size | 0.7 micron | 0.7 micron |
| Autofocus | - | No |
| Stabilization | Digital | Digital |
| Video resolution | 2160p (4K) at 60 FPS | 2160p (4K) at 60 FPS |
| Depth sensor (TOF 3D) | No | No |
Connectivity
| Wi-Fi standard | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) | Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) |
| Wi-Fi features | - Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display | - Dual Band - Wi-Fi MiMO - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 6.0 | 5.4 |
| Bluetooth features | LE | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 3.2 | 3.2 |
| USB features | - Charging - USB-Storage mode - OTG | - Charging - USB-Storage mode - OTG |
| DisplayPort | Yes | Yes, DP 1.2 |
| GPS | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC |
| NFC* | Yes | Yes |
| Infrared port | Yes | Yes |
| Number of SIM* | 2 | 2 |
| Type of SIM card | Nano | Nano |
| Multi SIM mode | Standby | Standby |
| eSIM support* | Yes | No |
| Hybrid slot | No | No |
| LTE Cat* | - | 20 |
| 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 | February 2025 | February 2024 |
| Release date | February 2025 | February 2024 |
| Launch price | $900 | $1499 |
| Sensors | - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint | - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Yes, 90 W | Yes, 90 W |
Further details
Notes on 14 Ultra:
- The rear cover is available in glass or eco-leather, while the frame can be aluminum or titanium.
- The front glass is either Xiaomi Shield Glass or Xiaomi Longjing Glass.
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

