Xiaomi Redmi K90 Ultra vs Vivo iQOO 15
88
out of 100
VS
93
out of 100
Here we compared two flagship smartphones: the 6.83-inch Xiaomi Redmi K90 Ultra (with Qualcomm Snapdragon 8 Elite) that was released on June 30, 2026, against the Vivo iQOO 15, which is powered by Qualcomm Snapdragon 8 Elite Gen 5 and came out 9 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
Select the amount of RAM to evaluate performance and value for money more precisely
Key differences
Reasons to consider the Xiaomi Redmi K90 Ultra
- Comes with 1550 mAh larger battery capacity: 8550 vs 7000 mAh
- Higher display refresh rate β 165 Hz
- Slow-motion recording at 1920FPS
- The phone is 9 months newer
- Supports Dolby Atmos sound technology
Reasons to consider the Vivo iQOO 15
- The rear camera has a 3x optical zoom
- Handles wireless charging up to 40W
- Newer Bluetooth version (v6.0)
- 22% better performance in AnTuTu Benchmark (3950K versus 3233K)
- 14% higher pixel density (508 vs 447 PPI)
- 10% faster in single-core GeekBench 6 test: 3584 and 3261 points
- The front-facing camera can record video at 4K
- Ready for eSIM technology
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.
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 | 6.83 inches | 6.85 inches |
| Resolution | 1280 x 2772 pixels | 1440 x 3168 pixels |
| Aspect ratio | 19.5:9 | 20:9 |
| PPI | 447 ppi | 508 ppi |
| Refresh rate | 165 Hz | 144 Hz |
| Adaptive refresh rate | Yes | Yes (1-120 Hz) |
| Max rated brightness | - | 2600 nits |
| Max rated brightness in HDR | 9500 nits | 6000 nits |
| HDR support | Yes, Dolby Vision | Yes, Dolby Vision |
| Touch sampling rate | 480 Hz | - |
| Screen protection | Tempered glass | Tempered glass |
| Screen-to-body ratio | 90.2% | 90.2% |
| Display features | - DCI-P3 - Always-On Display - DC Dimming |
- DCI-P3 - Always-On Display - DC Dimming |
| RGB color space | - | 100% |
| PWM | - | 561 Hz |
| Response time | - | 1 ms |
| Contrast | - | β Infinity |
Peak brightness test (auto)
Design and build
| Height | 162.91 mm (6.41 inches) | 163.65 mm (6.44 inches) |
| Width | 77.93 mm (3.07 inches) | 76.8 mm (3.02 inches) |
| Thickness | 8.18 mm (0.32 inches) | 8.1 mm (0.32 inches) |
| Weight | 227 g (8.01 oz) | 220 g (7.76 oz) |
| Waterproof | IP69 | IP69 |
| Advanced cooling | Active fan | Vapor chamber |
| Rear material | - | Glass |
| Frame material | Metal | Metal |
| Colors | Black, Silver, Blue | White, Black, Blue |
| Fingerprint scanner | Yes, in-display | Yes, in-display |
Screen-to-body ratio
Performance
| Chipset | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite Gen 5 |
| Max clock | 4320 MHz | 4610 MHz |
| CPU cores | 8 (2 + 6) | 8 (2 + 6) |
| Architecture | - 6 cores at 3.53 GHz: Oryon (Phoenix M) - 2 cores at 4.32 GHz: Oryon (Phoenix L) |
- 6 cores at 3.63 GHz: Oryon Gen 3 Performance - 2 cores at 4.74 GHz: Oryon Gen 3 Prime |
| L3 cache | 8 MB | 12 MB |
| Manufacturing | TSMC | TSMC |
| Lithography process | 3 nanometers | 3 nanometers |
| Neural processor (NPU) | Hexagon | Hexagon |
| Graphics | Adreno 830 | Adreno 840 |
| GPU shading units | 1536 | 1536 |
| GPU clock | 1100 MHz | 1300 MHz |
| FLOPS | ~3379.2 GFLOPS | ~3993.6 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
| Compute Score (GPU) | 24370 | 27247 |
| Single-core score | 3261 | 3584 |
| Multi-core score | 10224 | 11143 |
AnTuTu Benchmark 11
| CPU | 924949 | 1112833 |
| GPU | 1161971 | 1494722 |
| Memory | 466704 | 442350 |
| UX | 680071 | 900177 |
| Total score | 3233695 | 3950082 |
| Samples | Less than 3 | [24 tests] |
3DMark Steel Nomad Light
| Stability | - | 54% |
| Graphics test | - | 21 FPS |
| Graphics score | - | 2806 |
3DMark Solar Bay
| Graphics test | - | 46 FPS |
| Section 1 | - | 52 FPS |
| Section 2 | - | 46 FPS |
| Section 3 | - | 40 FPS |
| Graphics score | - | 12156 |
3DMark Wild Life Extreme
| Graphics test | - | 40 FPS |
| Graphics score | - | 6752 |
PCMark 3.0
| Web score | - | 14169 |
| Video editing | - | 6652 |
| Photo editing | - | 35337 |
| Data manipulation | - | 14682 |
| Writing score | - | 29367 |
AnTuTu 11 Ranking List (70th and 29th place)
Recent User Tests
Xiaomi Redmi K90 Ultra
No benchmark results yet
Vivo iQOO 15
| Date | Benchmark | Result |
|---|---|---|
| π 2026-09-11 (Rtesh) | AnTuTu 11 | 3886893 |
| π 2026-09-10 (Ranit) | AnTuTu 11 | 3974227 |
| π 2026-08-07 (tt:shikazik) | AnTuTu 11 | 4017492 |
| π 2026-07-17 (Skarvinarn) | AnTuTu 11 | 3902163 |
| π 2026-07-03 (cA27) | AnTuTu 11 | 4140036 |
Memory
| RAM size | 12 GB | 12 GB |
| Memory type | LPDDR5X | LPDDR5X |
| Memory clock | 5300 MHz | 5300 MHz |
| Channels | 4 | 4 |
| Storage size | 256 GB | 256 GB |
| Storage type | UFS 4.1 | UFS 4.1 |
| Memory card | No | No |
Software
| Operating system | Android 16 | Android 16 |
| ROM | HyperOS 3 | OriginOS 6 |
| OS size | - | 57 GB |
| OS updates | 4 years | 5 years |
| Security updates | 6 years | 7 years |
Battery
| Capacity | 8550 mAh | 7000 mAh |
| Max charge power | 100 W | 100 W |
| Battery type | Silicon-Carbon (Si/C) | Silicon-Carbon (Si/C) |
| Replaceable | No | No |
| Wireless charging | No | Yes (40 W) |
| Reverse charging | Yes | Yes, (wireless) |
| Bypass charging | - | Yes |
| Fast charging | Yes | Yes (60% in 30 min) |
| Full charging time | - | 0:52 hr |
| Web browsing | - | 18:52 hr |
| Watching video | - | 27:27 hr |
| Gaming | - | 09:04 hr |
| Standby | - | 147 hr |
General battery life
Smartphones With Long Battery Life (#4th place)
Main camera
| Matrix | 50 megapixels | 50 megapixels |
| Image resolution | 8192 x 6144 | 8192 x 6144 |
| Zoom | Digital | Optical, 3x |
| Flash | Dual LED | Dual LED |
| Stabilization | Optical | Optical |
| 8K video recording | Up to 30FPS | Up to 30FPS |
| 4K video recording | Up to 60FPS | Up to 60FPS |
| 1080p video recording | Up to 60FPS | Up to 60FPS |
| Slow motion | 1920 FPS (710p) | 240 FPS (1080p) |
| Angle of widest lens | - | 107Β° |
| Lenses | 1) Standard: 50 MP 2) Ultrawide: 8 MP |
1) Standard: 50 MP 2) Telephoto: 50 MP 3) Ultrawide: 50 MP |
| Camera features | - Bokeh mode - Pro mode |
- Bokeh mode - Pro mode - RAW support |
| Image resolution | 50 MP | 50 MP |
| Aperture | f/1.7 | f/1.9 |
| Focal length | 24 mm | 23 mm |
| Sensor | - | Sony IMX921 |
| Sensor size | 1/1.55" (β 0.65 inch) | 1/1.56" (β 0.64 inch) |
| Pixel size | 1 micron | 1 micron |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Optical | Optical |
| Image resolution | - | 50 MP |
| Aperture | - | f/2.7 |
| Focal length | - | 85 mm |
| Sensor | - | Sony IMX882 |
| Sensor size | - | 1/1.95" (β 0.51 inch) |
| Pixel size | - | 0.8 micron |
| Stabilization | - | Optical |
| Image resolution | 8 MP | 50 MP |
| Aperture | f/2.2 | f/2.1 |
| Focal length | 15 mm | 15 mm |
| Sensor | - | Samsung S5KJN1 |
| Sensor size | 1/4.0" (β 0.25 inch) | 1/2.76" (β 0.36 inch) |
| Pixel size | 1.14 micron | 0.64 micron |
| Stabilization | Digital | Digital |
Selfie camera
| Megapixels | 20 megapixels | 32 megapixels |
| Image resolution | 5184 x 3888 | 6528 x 4896 |
| Aperture | f/2.2 | f/2.2 |
| Focal length | - | 21 mm |
| Sensor | - | GalaxyCore GC32E1 |
| Sensor size | - | 1/3.1" (β 0.32 inch) |
| Pixel size | - | 0.7 micron |
| Autofocus | No | No |
| Stabilization | Digital | Digital |
| Video resolution | 1080p (Full HD) 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 | 5.4 | 6.0 |
| Bluetooth features | LE | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 2 | 3.2 |
| USB features | - Charging - USB-Storage mode - OTG |
- Charging - USB-Storage mode - OTG |
| DisplayPort | No | Yes |
| GPS | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC | GPS, GLONASS, Beidou, Galileo, QZSS |
| 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* | No | 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 | No |
Speakers test
Max loudness
Other
| Category | Flagship | Flagship |
| Announced | June 2026 | October 2025 |
| Release date | June 2026 | October 2025 |
| Launch price (MSRP) | $440 | $699 |
| Sensors | - Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
- Proximity sensor - Gyroscope - Accelerometer - Ambient light sensor - Compass - Fingerprint |
| Bundled charger | Yes, 100 W | Yes, 100 W |
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
Conclusion
If the camera, gaming, and connectivity are more important to you, then choose the Vivo iQOO 15. But if the software, design, and sound are more of a priority β go for the Xiaomi Redmi K90 Ultra.
Cast your vote
Total votes: 1