Vivo iQOO 15 Ultra vs Vivo X300 FE (Russia)
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo X300 FE (Russia) (2026) runs on the Snapdragon 8 Gen 5. 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 6500); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 3,068,952); the Vivo X300 FE (Russia) is noticeably lighter (191g vs 227g).
Vivo iQOO 15 Ultra
Vivo X300 FE (Russia)
- Higher AnTuTu: 4602290 vs 3068952
- Better Geekbench Single: 3640 vs 2903
- Better Geekbench Multi: 11033 vs 9602
- Bigger battery: 7400 vs 6500 mAh
- Faster charging: 120W vs 90W
- Higher refresh rate: 144Hz vs 120Hz
- Faster wireless charging: 50W vs 40W
- Higher performance (99/100 vs 91/100)
- Better camera (78/100 vs 64/100)
- Longer battery life (92/100 vs 81/100)
- Better display (99/100 vs 85/100)
- Lighter: 191g vs 227g
- Better portability (64/100 vs 35/100)
Comparing the Vivo iQOO 15 Ultra vs the Vivo X300 FE (Russia), 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 64/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 81/100). 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 is a bit better (99/100 vs 85/100). In the "camera" category, the Vivo iQOO 15 Ultra is a bit better (78/100 vs 64/100). In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 81/100). In the "portability" category, the Vivo X300 FE (Russia) notably outperforms the Vivo iQOO 15 Ultra (64/100 vs 35/100).
| Specification | Vivo iQOO 15 Ultra | Vivo X300 FE (Russia) | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Snapdragon 8 Gen 5 | |
| AnTuTu | 4602290 | 3068952 | |
| Geekbench Single | 3640 | 2903 | |
| Geekbench Multi | 11033 | 9602 | |
| Display | 6.8" LTPO AMOLED | 6.3" LTPO AMOLED | |
| Resolution | 1440x3168 | 1216x2640 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7400 mAh | 6500 mAh | |
| Charging | 120W | 90W | |
| Wireless charging | 50W | 40W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 50 MP | |
| RAM | 12GB / 16GB / 24GB | 12GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 16 | Android 16, OriginOS 6 | |
| Brightness (peak) | 8000 nits | 5000 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 163.7×76.8×8.7 mm | 150.8×71.8×8.0 mm | |
| Weight | 227 g | 191 g | |
| Launch price | $799 | — |
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo X300 FE (Russia)
- Main: 50MP f/f/1.6
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 50MP
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo X300 FE (Russia)
- 6.3" LTPO AMOLED
- Resolution: 1216x2640
- Refresh rate: 120 Hz
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Vivo X300 FE (Russia)
- 6500 mAh
- Wired: 90W
- Wireless: 40W
We compared Vivo iQOO 15 Ultra and Vivo X300 FE (Russia), covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Vivo X300 FE (Russia) by 50.0% in our overall performance rating.
Vivo X300 FE (Russia)
Price unknownperformance
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 is a bit better (99/100 vs 85/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra is a bit better (78/100 vs 64/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra is a bit better (92/100 vs 81/100).
portability
In the "portability" category, the Vivo X300 FE (Russia) notably outperforms the Vivo iQOO 15 Ultra (64/100 vs 35/100).
Which is better: the Vivo iQOO 15 Ultra or the Vivo X300 FE (Russia)?
The Vivo iQOO 15 Ultra edges out the Vivo X300 FE (Russia) by just 9 points — the two devices are very close in overall level.
What is the rating of the Vivo iQOO 15 Ultra and the Vivo X300 FE (Russia)?
The Vivo iQOO 15 Ultra has a MobileRank rating of 89/100, the Vivo X300 FE (Russia) — 80/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Vivo X300 FE (Russia)?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 64/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Vivo X300 FE (Russia)?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 91/100).
Should you choose the Vivo iQOO 15 Ultra over the Vivo X300 FE (Russia)?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo X300 FE (Russia) is a better fit for gamers and power users, those who care about battery life.