Xiaomi 17 Ultra vs 15 Ultra
92
out of 100
VS
90
out of 100
Here we compared two flagship smartphones: the 6.9-inch Xiaomi 17 Ultra (with Qualcomm Snapdragon 8 Elite Gen 5) that was released on December 25, 2025, against the Xiaomi 15 Ultra, which is powered by Qualcomm Snapdragon 8 Elite and came out 11 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
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Key differences
Reasons to consider the Xiaomi 17 Ultra
- Delivers 130% higher peak brightness (3674 against 1594 nits)
- Shows 11% longer battery life (33:23 vs 30:03 hours)
- 21% better performance in AnTuTu Benchmark (3667K versus 3030K)
- The phone is 11 months newer
- 19% faster in single-core GeekBench 6 test: 3711 and 3106 points
Reasons to consider the Xiaomi 15 Ultra
- 25% higher pixel density (522 vs 416 PPI)
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
Select your primary usage scenario to get a more accurate NanoReview Score
Value for money (Beta)
Tests and specifications
Comparison table of technical specifications and testsDisplay
| Type | AMOLED | AMOLED |
| Size | 6.9 inches | 6.73 inches |
| Resolution | 1200 x 2608 pixels | 1440 x 3200 pixels |
| Aspect ratio | 19.5:9 | 20:9 |
| PPI | 416 ppi | 522 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Adaptive refresh rate | Yes (1-120 Hz) | Yes (1-120 Hz) |
| Max rated brightness | 1200 nits | 1600 nits |
| Max rated brightness in HDR | 3500 nits | 3200 nits |
| HDR support | Yes, Dolby Vision | Yes, Dolby Vision |
| Touch sampling rate | 300 Hz | 300 Hz |
| Screen protection | Xiaomi Shield Glass 3.0 | Xiaomi Shield Glass 2.0 |
| Screen-to-body ratio | 92.4% | 90% |
| Display features | - DCI-P3 - Always-On Display - DC Dimming |
- DCI-P3 - Always-On Display - DC Dimming |
| RGB color space | 100% | 99.7% |
| PWM | 121 Hz | 120 Hz |
| Response time | 1 ms | 1 ms |
| Contrast | ∞ Infinity | ∞ Infinity |
Peak brightness test (auto)
Design and build
| Height | 162.9 mm (6.41 inches) | 161.3 mm (6.35 inches) |
| Width | 77.6 mm (3.06 inches) | 75.3 mm (2.96 inches) |
| Thickness | 8.29 mm (0.33 inches) | 9.35 mm (0.37 inches) |
| Weight | 218.4 g (7.7 oz) | 226 g (7.97 oz) |
| Waterproof | IP68 | IP68 |
| Advanced cooling | Vapor chamber | Vapor chamber |
| Rear material | - | Glass |
| Frame material | Metal | Metal |
| Colors | White, Black, Green, Purple | White, Black, Silver, Green |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
| Repairability | Average (2.63/5) | Average (2.61/5) |
| Drop resistance | Excellent (A) · 270 drops | Good (C) · 90 drops |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Elite |
| Max clock | 4610 MHz | 4320 MHz |
| CPU cores | 8 (2 + 6) | 8 (2 + 6) |
| Architecture | - 6 cores at 3.63 GHz: Oryon Gen 3 Performance - 2 cores at 4.74 GHz: Oryon Gen 3 Prime |
- 6 cores at 3.53 GHz: Oryon (Phoenix M) - 2 cores at 4.32 GHz: Oryon (Phoenix L) |
| L3 cache | 8 MB | 8 MB |
| Manufacturing | TSMC | TSMC |
| Lithography process | 3 nanometers | 3 nanometers |
| Neural processor (NPU) | Hexagon | Hexagon |
| Graphics | Adreno 840 | Adreno 830 |
| GPU shading units | 1536 | 1536 |
| GPU clock | 1300 MHz | 1100 MHz |
| FLOPS | ~3993.6 GFLOPS | ~3379.2 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
| Compute Score (GPU) | 27219 | 24339 |
| Single-core score | 3711 | 3106 |
| Multi-core score | 11259 | 9710 |
AnTuTu Benchmark 11
| CPU | 1064371 | 912791 |
| GPU | 1296835 | 1097348 |
| Memory | 518366 | 440343 |
| UX | 788139 | 579894 |
| Total score | 3667711 | 3030376 |
| Samples | [7 tests] | [12 tests] |
3DMark Steel Nomad Light
| Stability | 81% | 76% |
| Graphics test | 18 FPS | 16 FPS |
| Graphics score | 2370 | 2151 |
3DMark Solar Bay
| Graphics test | 41 FPS | 37 FPS |
| Section 1 | 46 FPS | 42 FPS |
| Section 2 | 41 FPS | 38 FPS |
| Section 3 | 36 FPS | 32 FPS |
| Graphics score | 10845 | 9815 |
3DMark Wild Life Extreme
| Stability | - | 85% |
| Graphics test | - | 33 FPS |
| Graphics score | - | 5626 |
PCMark 3.0
| Web score | 16855 | 19993 |
| Video editing | 8052 | 8213 |
| Photo editing | 40273 | 36597 |
| Data manipulation | 15949 | 17882 |
| Writing score | 26073 | 22481 |
AnTuTu 11 Ranking List (44th and 110th place)
Recent User Tests
Xiaomi 17 Ultra
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-09-25 (Klax) | AnTuTu 12 | 3939764 |
| 📘 2026-09-13 (H1roshi) | AnTuTu 11 | 3530859 |
| 📘 2026-07-04 (...) | AnTuTu 11 | 3582442 |
| 📘 2026-06-26 (ALBAY) | AnTuTu 11 | 3913603 |
| 📘 2026-04-18 (UsusWarteg) | AnTuTu 11 | 3828672 |
Xiaomi 15 Ultra
| Date | Benchmark | Result |
|---|---|---|
| 📘 2026-09-27 (dmxsan) | AnTuTu 12 | 3059557 |
| 📘 2026-07-07 (average f-4 enjoyer) | AnTuTu 11 | 2993761 |
| 📘 2026-06-28 (Mansur) | Battery life | SOT 12:59 / 16:48 |
| 📘 2026-02-22 (XX5mipiXX) | AnTuTu 11 | 3108699 |
| 📘 2026-01-27 -> MiEmirr | Geekbench 6 CPU | 3127 / 9465 |
Memory
| RAM size | 12 GB | 12 GB |
| Memory type | LPDDR5X | LPDDR5X |
| Memory clock | 5300 MHz | 5300 MHz |
| Channels | 4 | 4 |
| Storage size | 512 GB | 256 GB |
| Storage type | UFS 4.1 | UFS 4.1 |
| Memory card | No | No |
Software
| Operating system | Android 16 | Android 15 (Can be upgraded to Android 16) |
| ROM | HyperOS 3 | HyperOS 3.0 |
| OS size | 36 GB | 23.9 GB |
| OS updates | 6 years | 4 years |
| Security updates | 6 years | 7 years |
Battery
| Capacity | 6000 mAh | 5410 mAh |
| Max charge power | 90 W | 90 W |
| Battery type | Silicon-Carbon (Si/C) | Silicon-Carbon (Si/C) |
| Replaceable | No | No |
| Wireless charging | Yes (50 W) | Yes (80 W) |
| Reverse charging | Yes, (wireless) | Yes, (wireless) |
| Bypass charging | Yes | No |
| Fast charging | Yes (72% in 30 min) | Yes (72% in 30 min) |
| Full charging time | 0:50 hr | 0:51 hr |
| Battery cycles | 1000 cycles | 1000 cycles |
| Web browsing | 16:09 hr | 12:19 hr |
| Watching video | 22:41 hr | 18:43 hr |
| Gaming | 08:02 hr | 06:45 hr |
| Standby | 125 hr | 141 hr |
General battery life
Smartphones With Long Battery Life (22nd and 45th place)
Main camera
| Matrix | 50 megapixels | 50 megapixels |
| Image resolution | 8192 x 6144 | 8192 x 6144 |
| Zoom | Optical, 4.3x | Optical, 4.3x |
| 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 (720p) | 1920 FPS (1080p) |
| Angle of widest lens | 115° | 115° |
| Lenses | 1) Standard: 50 MP 2) Telephoto: 200 MP 3) Ultrawide: 50 MP |
1) Standard: 50 MP 2) Telephoto: 200 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/1.67 | f/1.63 |
| Focal length | 23 mm | 23 mm |
| Sensor | OmniVision OVX10500 | Sony LYT-900 |
| Sensor size | 1/1" (≈ 1 inch) | 1/1.0" (≈ 1 inch) |
| Pixel size | 1.6 micron | 1.6 micron |
| Autofocus | Laser autofocus | Laser autofocus |
| Stabilization | Optical | Optical |
| Image resolution | 200 MP | 200 MP |
| Aperture | f/2.4 - 3.0 | f/2.6 |
| Focal length | 100 mm | 100 mm |
| Sensor | Samsung ISOCELL HPE | Samsung ISOCELL S5KHP9 |
| Sensor size | 1/1.4" (≈ 0.71 inch) | 1/1.4" (≈ 0.71 inch) |
| Pixel size | 0.56 micron | 0.56 micron |
| Stabilization | Optical | Optical |
| Image resolution | 50 MP | 50 MP |
| Aperture | f/2.2 | f/2.2 |
| Focal length | 14 mm | 14 mm |
| Sensor | Samsung S5KJN5 | Samsung S5KJN5 |
| Sensor size | 1/2.76" (≈ 0.36 inch) | 1/2.76" (≈ 0.36 inch) |
| Pixel size | 0.64 micron | 0.64 micron |
| Stabilization | Digital | Digital |
DxOMark main camera tests
Photo quality
Video quality
Generic main camera score
| Bokeh | 175 | 170 |
| Preview | - | 89 |
| Zoom | 169 | 166 |
| Samples | Photo samples of Xiaomi 17 Ultra from DxOMark | Photo samples of Xiaomi 15 Ultra from DxOMark |
Selfie camera
| Megapixels | 50 megapixels | 32 megapixels |
| Image resolution | 8192 x 6144 | 6528 x 4896 |
| Aperture | f/2.2 | f/2.0 |
| Focal length | 21 mm | 22 mm |
| Sensor | Omnivision OV50M | Omnivision OV32B |
| Sensor size | 1/2.88" (≈ 0.35 inch) | 1/3.14" (≈ 0.32 inch) |
| Pixel size | 0.61 micron | 0.7 micron |
| Autofocus | Phase 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 | 6.0 |
| 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 |
| 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 | Yes |
| Hybrid slot | No | No |
| 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 2025 | February 2025 |
| Release date | March 2026 | February 2025 |
| Launch price (MSRP) | $1199 | $1099 |
| Successor | - | - Xiaomi 17 Ultra |
| Sensors | - Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Barometer - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Not included | Yes, 90 W |
Further details
Notes on 15 Ultra:
- The Chinese version of the Xiaomi 15 Ultra has a 6000 mAh battery, while the international model comes with 5410 mAh, leading to a noticeable difference in battery life.
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
These smartphones have a lot in common, but we would recommend the Xiaomi 17 Ultra. It has a better gaming, battery life, and design.
Cast your vote
Total votes: 626
