Realme 15x vs Vivo iQOO 15 Ultra
The Realme 15x (2025) runs on the MediaTek Dimensity 6300, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $250 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 51/100 (a 38-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 524,785); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Realme 15x doesn't; the Realme 15x is noticeably lighter (212g vs 227g).
Realme 15x
Vivo iQOO 15 Ultra
- Lighter: 212g vs 227g
- Cheaper at launch: $250 vs $799
- Better portability (49/100 vs 35/100)
- Higher AnTuTu: 4602290 vs 524785
- Better Geekbench Single: 3640 vs 771
- Better Geekbench Multi: 11033 vs 1980
- Bigger battery: 7400 vs 7000 mAh
- Faster charging: 120W vs 60W
- Higher performance (99/100 vs 43/100)
- Better camera (78/100 vs 40/100)
- Longer battery life (92/100 vs 75/100)
- Better display (99/100 vs 65/100)
Comparing the Realme 15x vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 38 points higher (89/100 vs 51/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 43/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 40/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 75/100). Value score: Realme 15x — 54/100, Vivo iQOO 15 Ultra — 90/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme 15x (99/100 vs 43/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme 15x (99/100 vs 65/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme 15x (78/100 vs 40/100). In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Realme 15x (92/100 vs 75/100). In the "portability" category, the Realme 15x is a bit better (49/100 vs 35/100).
| Specification | Realme 15x | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6300 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 524785 | 4602290 | |
| Geekbench Single | 771 | 3640 | |
| Geekbench Multi | 1980 | 11033 | |
| Display | 6.8" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 720x1570 | 1440x3168 | |
| Refresh rate | 144 Hz | 144 Hz | |
| Battery | 7000 mAh | 7400 mAh | |
| Charging | 60W | 120W | |
| Wireless charging | — | 50W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 50 MP | 32 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB / 24GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 1200 nits | 8000 nits | |
| NFC | no | yes | |
| Protection | IP68/IP69 | IP68 | |
| Dimensions | 166.1×77.9×8.3 mm | 163.7×76.8×8.7 mm | |
| Weight | 212 g | 227 g | |
| Launch price | $250 | $799 |
Realme 15x
- Main: 50MP f/1.8
- Front: 50MP
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Realme 15x
- 6.8" IPS LCD
- Resolution: 720x1570
- Refresh rate: 144 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Realme 15x
- 7000 mAh
- Wired: 60W
- Wireless charging: no data
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
We compared Realme 15x and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Realme 15x by 88.6% in our overall performance rating.
Launch price difference: $549. Realme 15x was $549 cheaper at launch.
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme 15x (99/100 vs 43/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme 15x (99/100 vs 65/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme 15x (78/100 vs 40/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Realme 15x (92/100 vs 75/100).
portability
In the "portability" category, the Realme 15x is a bit better (49/100 vs 35/100).
Which is better: the Realme 15x or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Realme 15x by 38 points (89/100 vs 51/100).
What is the rating of the Realme 15x and the Vivo iQOO 15 Ultra?
The Realme 15x has a MobileRank rating of 51/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Realme 15x or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 40/100).
Which is more powerful: the Realme 15x or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 43/100).
Should you choose the Realme 15x over the Vivo iQOO 15 Ultra?
The Realme 15x is a better fit for those who care about battery life. The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.