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; estimated prices are $350 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 84/100 vs 66/100 (a 18-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 2,760,000); the Realme GT 8 is noticeably lighter (209g vs 227g).
Realme GT 8
Vivo iQOO 15 Ultra
- Lighter: 209g vs 227g
- Cheaper: $350 vs $799
- Better design/ergonomics (38/100 vs 16/100)
- Better value for money (86/100 vs 55/100)
- Higher AnTuTu: 4602290 vs 2760000
- Better Geekbench Single: 3640 vs 3050
- Better Geekbench Multi: 11033 vs 9300
- Bigger battery: 7400 vs 7000 mAh
- Faster charging: 120W vs 100W
- Higher performance (97/100 vs 65/100)
- Better camera (74/100 vs 51/100)
- Longer battery life (86/100 vs 70/100)
Comparing the Realme GT 8 vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 18 points higher (84/100 vs 66/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (97/100 vs 65/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (74/100 vs 51/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (86/100 vs 70/100). In the "value for money" category, the Realme GT 8 leads (86/100 vs 55/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme GT 8 (97/100 vs 65/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo iQOO 15 Ultra notably outperforms the Realme GT 8 (74/100 vs 51/100). In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Realme GT 8 (86/100 vs 70/100). In the "design" category, the Realme GT 8 notably outperforms the Vivo iQOO 15 Ultra (38/100 vs 16/100). In the "value for money" category, the Realme GT 8 significantly outperforms the Vivo iQOO 15 Ultra (86/100 vs 55/100).
| Specification | Realme GT 8 | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 2760000 | 4602290 | |
| Geekbench Single | 3050 | 3640 | |
| Geekbench Multi | 9300 | 11033 | |
| 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 | 0W | 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 | |
| Price | $350 | $799 |
Realme GT 8
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 16MP
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
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
Realme GT 8
- 7000 mAh
- Wired: 100W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
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 40.0% in our overall performance rating.
Price difference: $449. Realme GT 8 is cheaper by $449.
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme GT 8 (97/100 vs 65/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Vivo iQOO 15 Ultra notably outperforms the Realme GT 8 (74/100 vs 51/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Realme GT 8 (86/100 vs 70/100).
design
In the "design" category, the Realme GT 8 notably outperforms the Vivo iQOO 15 Ultra (38/100 vs 16/100).
value for money
In the "value for money" category, the Realme GT 8 significantly outperforms the Vivo iQOO 15 Ultra (86/100 vs 55/100).
Which is better: the Realme GT 8 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra is noticeably better than the Realme GT 8 — the overall rating gap is 18 points.
What is the rating of the Realme GT 8 and the Vivo iQOO 15 Ultra?
The Realme GT 8 has a MobileRank rating of 66/100, the Vivo iQOO 15 Ultra — 84/100.
Which has the better camera: the Realme GT 8 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (74/100 vs 51/100).
Which is more powerful: the Realme GT 8 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (97/100 vs 65/100).
Should you choose the Realme GT 8 over the Vivo iQOO 15 Ultra?
The Realme GT 8 is a better fit for active users, budget-conscious buyers. The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life.