Realme GT 8 vs Vivo iQOO 15 Ultra
The Realme GT 8 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $350 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 80/100 (a 9-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 7000); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 3,126,402); the Realme GT 8 is noticeably lighter (209g vs 227g).
Profile comparison
Category scores
Realme GT 8
Vivo iQOO 15 Ultra
What makes Realme GT 8 better?
- Lighter: 209g vs 227g
- Cheaper at launch: $350 vs $799
- Better portability (50/100 vs 35/100)
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 3126402
- Better Geekbench Single: 3639 vs 3013
- Better Geekbench Multi: 11047 vs 9287
- Bigger battery: 7400 vs 7000 mAh
- Faster charging: 120W vs 100W
- Higher performance (99/100 vs 91/100)
- Better camera (78/100 vs 56/100)
- Longer battery life (92/100 vs 85/100)
- Better display (99/100 vs 98/100)
Comparison verdict
Comparing the Realme GT 8 vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 9 points higher (89/100 vs 80/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 56/100). Value score: Realme GT 8 — 94/100, Vivo iQOO 15 Ultra — 92/100; 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 Vivo iQOO 15 Ultra is a bit better (99/100 vs 91/100). In the "display" category, the Vivo iQOO 15 Ultra and the Realme GT 8 are nearly equal (99/100 vs 98/100). In the "camera" category, the Vivo iQOO 15 Ultra notably outperforms the Realme GT 8 (78/100 vs 56/100). In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 85/100). In the "portability" category, the Realme GT 8 notably outperforms the Vivo iQOO 15 Ultra (50/100 vs 35/100).
Specs comparison
| Specification | Realme GT 8 | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 3126402 | 4602290 | |
| Geekbench Single | 3013 | 3639 | |
| Geekbench Multi | 9287 | 11047 | |
| Display | 6.8" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1440x3136 | 1440x3168 | |
| Refresh rate | 144 Hz | 144 Hz | |
| Battery | 7000 mAh | 7400 mAh | |
| Charging | 100W | 120W | |
| Wireless charging | — | 50W | |
| 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 | 12GB / 16GB / 24GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | — | 8000 nits | |
| NFC | — | yes | |
| Protection | — | IP68 | |
| Dimensions | — | 163.7×76.8×8.7 mm | |
| Weight | 209 g | 227 g | |
| Launch price | $350 | $799 |
Camera comparison
Realme GT 8
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 16MP
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Realme GT 8
- 6.8" AMOLED
- Resolution: 1440x3136
- Refresh rate: 144 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Realme GT 8
- 7000 mAh
- Wired: 100W
- Wireless charging: no data
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Overall performance score
We compared Realme GT 8 and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Realme GT 8 by 32.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $449. Realme GT 8 was $449 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra is a bit better (99/100 vs 91/100).
display
In the "display" category, the Vivo iQOO 15 Ultra and the Realme GT 8 are nearly equal (99/100 vs 98/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra notably outperforms the Realme GT 8 (78/100 vs 56/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 85/100).
portability
In the "portability" category, the Realme GT 8 notably outperforms the Vivo iQOO 15 Ultra (50/100 vs 35/100).
Frequently asked questions
Which is better: the Realme GT 8 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra edges out the Realme GT 8 by just 9 points — the two devices are very close in overall level.
What is the rating of the Realme GT 8 and the Vivo iQOO 15 Ultra?
The Realme GT 8 has a MobileRank rating of 80/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Realme GT 8 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 56/100).
Which is more powerful: the Realme GT 8 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 91/100).
Should you choose the Realme GT 8 over the Vivo iQOO 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 Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.