Realme GT 6 vs Xiaomi 15 Ultra
The Realme GT 6 (2024) runs on the Qualcomm Snapdragon 8s Gen 3, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $450 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 70/100 (a 15-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 5500); the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 1,809,566); the Realme GT 6 is noticeably lighter (199g vs 225g).
Profile comparison
Category scores
Realme GT 6
Xiaomi 15 Ultra
What makes Realme GT 6 better?
- Faster charging: 120W vs 90W
- Lighter: 199g vs 225g
- Cheaper at launch: $450 vs $999
- Better portability (53/100 vs 29/100)
What makes Xiaomi 15 Ultra better?
- Higher AnTuTu: 3030376 vs 1809566
- Better Geekbench Single: 3050 vs 1923
- Better Geekbench Multi: 10200 vs 5179
- Bigger battery: 6000 vs 5500 mAh
- Higher performance (92/100 vs 75/100)
- Better camera (87/100 vs 61/100)
- Longer battery life (80/100 vs 70/100)
- Better display (90/100 vs 84/100)
Comparison verdict
Comparing the Realme GT 6 vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 15 points higher (85/100 vs 70/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 75/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 61/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 70/100). Value score: Realme GT 6 — 64/100, Xiaomi 15 Ultra — 80/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Xiaomi 15 Ultra notably outperforms the Realme GT 6 (92/100 vs 75/100). In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 84/100). In the "camera" category, the Xiaomi 15 Ultra notably outperforms the Realme GT 6 (87/100 vs 61/100). In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 70/100). In the "portability" category, the Realme GT 6 notably outperforms the Xiaomi 15 Ultra (53/100 vs 29/100).
Specs comparison
| Specification | Realme GT 6 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8s Gen 3 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1809566 | 3030376 | |
| Geekbench Single | 1923 | 3050 | |
| Geekbench Multi | 5179 | 10200 | |
| Display | 6.8" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1264x2780 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5500 mAh | 6000 mAh | |
| Charging | 120W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 8GB / 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 14, up to 3 major Android upgrades, Realme UI 5.0 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 6000 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP65 | IP68 | |
| Dimensions | 162.0×75.1×8.6 mm | 161.3×75.3×9.4 mm | |
| Weight | 199 g | 225 g | |
| Launch price | $450 | $999 |
Camera comparison
Realme GT 6
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Realme GT 6
- 6.8" AMOLED
- Resolution: 1264x2780
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Battery and charging
Realme GT 6
- 5500 mAh
- Wired: 120W
- No wireless charging
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
Overall performance score
We compared Realme GT 6 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Realme GT 6 by 40.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $549. Realme GT 6 was $549 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Xiaomi 15 Ultra notably outperforms the Realme GT 6 (92/100 vs 75/100).
display
In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 84/100).
camera
In the "camera" category, the Xiaomi 15 Ultra notably outperforms the Realme GT 6 (87/100 vs 61/100).
battery
In the "battery" category, the Xiaomi 15 Ultra is a bit better (80/100 vs 70/100).
portability
In the "portability" category, the Realme GT 6 notably outperforms the Xiaomi 15 Ultra (53/100 vs 29/100).
Frequently asked questions
Which is better: the Realme GT 6 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra is noticeably better than the Realme GT 6 — the overall rating gap is 15 points.
What is the rating of the Realme GT 6 and the Xiaomi 15 Ultra?
The Realme GT 6 has a MobileRank rating of 70/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Realme GT 6 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 61/100).
Which is more powerful: the Realme GT 6 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 75/100).
Should you choose the Realme GT 6 over the Xiaomi 15 Ultra?
The Realme GT 6 is a better fit for active users. The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.