Realme GT 6T vs Xiaomi 15 Ultra
The Verdict
Realme GT 6T delivers exceptional value with a 6.78-inch LTPO AMOLED display reaching 6000 nits brightness, Snapdragon 7 Plus Gen 3 processor, and rapid 120W charging on a 5500 mAh battery. Its 50MP main camera with OIS and Sony sensor handles everyday photography competently. Xiaomi 15 Ultra commands a premium price point with flagship Snapdragon 8 Elite performance, superior 1-inch sensor main camera, impressive 200MP telephoto with 5x optical zoom, and crisp 3200x1440 display. It adds wireless charging and titanium build but carries noticeable weight at 229g. Budget-conscious buyers seeking solid performance and display quality should choose Realme GT 6T. Photography enthusiasts and power users willing to invest in premium specs favor Xiaomi 15 Ultra.
Who Should Buy
Buy the Realme GT 6T if…
- →Blazing 120W SUPERVOOC charges 5500 mAh battery in under 30 minutes
- →6000-nit peak brightness is class-leading display performance
- →Snapdragon 7+ Gen 3 delivers near-flagship gaming power
Buy the Xiaomi 15 Ultra if…
- →200MP periscope telephoto with 5x optical zoom rivals Galaxy S25 Ultra
- →1-inch main sensor with Leica optics produces stunning photos
- →Titanium frame gives a premium, durable build
Category Scores
Pros & Cons
Realme GT 6T
Pros
- Blazing 120W SUPERVOOC charges 5500 mAh battery in under 30 minutes
- 6000-nit peak brightness is class-leading display performance
- Snapdragon 7+ Gen 3 delivers near-flagship gaming power
- IP65 water and dust resistance for the price
- Large 5500 mAh battery provides exceptional endurance
Cons
- 8 MP ultrawide is very low resolution
- No wireless charging at any variant
- Plastic frame feels less premium than metal alternatives
- No telephoto or dedicated zoom camera
- Video recording maxes at 4K@30fps
Xiaomi 15 Ultra
Pros
- 200MP periscope telephoto with 5x optical zoom rivals Galaxy S25 Ultra
- 1-inch main sensor with Leica optics produces stunning photos
- Titanium frame gives a premium, durable build
- 4K@120fps video recording is industry-leading
- 90W fast charging and 50W wireless on a huge 5810 mAh battery
Cons
- Heavy at 229 g and thick at 9.17 mm
- Very expensive at $999 with limited global availability
- HyperOS software experience lags behind iOS and One UI
- Camera bump is extremely large
Full Specifications
| Spec | Realme GT 6T | Xiaomi 15 Ultra |
|---|---|---|
| Software | Android 14 (Realme UI 5.0) | Android 15 (HyperOS 2) |
| Body | ||
| Weight | 190 g | 229 g |
| Material | Plastic frame, glass front and back | Titanium frame, Gorilla Glass Victus 2 |
| IP rating | IP65 | IP68 |
| Dimensions | 162 x 75.1 x 8.65 mm | 161.1 x 75.2 x 9.17 mm |
| Camera | ||
| Main camera | 50 MP, f/1.88, PDAF, OIS, Sony LYT-600 | 50 MP, f/1.63, OIS (1-inch sensor) |
| Front camera | 32 MP, f/2.5 | 32 MP, f/2.0 |
| Video | 4K@30fps | 8K@30fps, 4K@120fps |
| Ultrawide | 8 MP, f/2.2 | 50 MP, f/2.0, 128-degree |
| Telephoto | — | 200 MP, f/2.6, 5x periscope optical zoom, OIS |
| Memory | ||
| RAM | 8 GB / 12 GB | 16 GB |
| Storage options | 128 GB, 256 GB | 256 GB, 512 GB, 1 TB |
| Battery | ||
| Capacity | 5500 mAh | 5810 mAh |
| Charging | 120W SUPERVOOC | 90W wired |
| Wireless charging | No | 50W wireless |
| Display | ||
| Size | 6.78 inches | 6.73 inches |
| Type | LTPO AMOLED | LTPO AMOLED |
| Resolution | 2780 x 1264 | 3200 x 1440 |
| Refresh rate | 120Hz | 1-120Hz |
| Brightness (nits) | 6000 | 3200 |
| Processor | ||
| CPU | Octa-core (4x2.8 GHz + 4x2.0 GHz) | Octa-core (2x4.32 GHz + 6x3.53 GHz) |
| GPU | Adreno 732 | Adreno 830 |
| Chipset | Qualcomm Snapdragon 7 Plus Gen 3 | Qualcomm Snapdragon 8 Elite |
| Connectivity | ||
| 5G | ||
| NFC | ||
| USB | USB-C 2.0 | USB-C 3.2 |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 7 |
| Bluetooth | 5.3 | 5.4 |
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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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