Realme GT 8 vs Xiaomi 15 Ultra
The Realme GT 8 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $350 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 80/100 (a 5-point difference). Key differences: the Realme GT 8 has the bigger battery (7000 mAh vs 6000); the Realme GT 8 is faster in AnTuTu (3,119,308 vs 3,030,376); the Realme GT 8 is noticeably lighter (209g vs 225g).
Realme GT 8
Xiaomi 15 Ultra
- Higher AnTuTu: 3119308 vs 3030376
- Bigger battery: 7000 vs 6000 mAh
- Faster charging: 100W vs 90W
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 209g vs 225g
- Cheaper: $350 vs $999
- Longer battery life (85/100 vs 80/100)
- Better display (98/100 vs 90/100)
- Better portability (50/100 vs 29/100)
- Better value for money (100/100 vs 82/100)
- Better Geekbench Single: 3050 vs 3041
- Better Geekbench Multi: 10200 vs 9494
- Better camera (87/100 vs 56/100)
Comparing the Realme GT 8 vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 5 points higher (85/100 vs 80/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 56/100). In the "value for money" category, the Realme GT 8 leads (100/100 vs 82/100). In the "performance" category, both devices are on the same level — 92/100. In the "display" category, the Realme GT 8 is a bit better (98/100 vs 90/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Realme GT 8 (87/100 vs 56/100). In the "battery" category, the Realme GT 8 is a bit better (85/100 vs 80/100). In the "portability" category, the Realme GT 8 notably outperforms the Xiaomi 15 Ultra (50/100 vs 29/100). In the "value for money" category, the Realme GT 8 notably outperforms the Xiaomi 15 Ultra (100/100 vs 82/100).
| Specification | Realme GT 8 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 3119308 | 3030376 | |
| Geekbench Single | 3041 | 3050 | |
| Geekbench Multi | 9494 | 10200 | |
| Display | 6.8" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1440x3136 | 3200x1440 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 6000 mAh | |
| Charging | 100W | 90W | |
| Wireless charging | — | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 16 MP | 32 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 15 / HyperOS 2 | |
| Brightness (peak) | — | 3200 nits | |
| NFC | — | yes | |
| Protection | — | IP68 | |
| Dimensions | — | 161.3×75.3×9.4 mm | |
| Weight | 209 g | 225 g | |
| Price | $350 | $999 |
Realme GT 8
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 16MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Realme GT 8
- 6.8" AMOLED
- Resolution: 1440x3136
- Refresh rate: 144 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Realme GT 8
- 7000 mAh
- Wired: 100W
- Wireless charging: no data
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared Realme GT 8 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Realme GT 8 leads Xiaomi 15 Ultra by 2.9% in our overall performance rating.
Price difference: $649. Realme GT 8 is cheaper by $649.
performance
In the "performance" category, both devices are on the same level — 92/100.
display
In the "display" category, the Realme GT 8 is a bit better (98/100 vs 90/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Realme GT 8 (87/100 vs 56/100).
battery
In the "battery" category, the Realme GT 8 is a bit better (85/100 vs 80/100).
portability
In the "portability" category, the Realme GT 8 notably outperforms the Xiaomi 15 Ultra (50/100 vs 29/100).
value for money
In the "value for money" category, the Realme GT 8 notably outperforms the Xiaomi 15 Ultra (100/100 vs 82/100).
Which is better: the Realme GT 8 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra edges out the Realme GT 8 by just 5 points — the two devices are very close in overall level.
What is the rating of the Realme GT 8 and the Xiaomi 15 Ultra?
The Realme GT 8 has a MobileRank rating of 80/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Realme GT 8 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 56/100).
Should you choose the Realme GT 8 over the Xiaomi 15 Ultra?
The Realme GT 8 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. 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.