Vivo iQOO 15 Ultra vs Vivo X100s
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo X100s (2024) runs on the MediaTek Dimensity 9300+; launch prices were $799 and $699. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 78/100 (a 11-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 5100); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 2,351,914); the Vivo X100s is noticeably lighter (203g vs 227g).
Vivo iQOO 15 Ultra
Vivo X100s
- Higher AnTuTu: 4602290 vs 2351914
- Better Geekbench Single: 3640 vs 2250
- Better Geekbench Multi: 11033 vs 7315
- Bigger battery: 7400 vs 5100 mAh
- Faster charging: 120W vs 100W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (99/100 vs 83/100)
- Longer battery life (92/100 vs 62/100)
- Better display (99/100 vs 84/100)
- Lighter: 203g vs 227g
- Cheaper at launch: $699 vs $799
- Better camera (84/100 vs 78/100)
- Better portability (59/100 vs 35/100)
Comparing the Vivo iQOO 15 Ultra vs the Vivo X100s, the Vivo iQOO 15 Ultra scores 11 points higher (89/100 vs 78/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 83/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 62/100). Value score: Vivo iQOO 15 Ultra — 90/100, Vivo X100s — 68/100; 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 notably outperforms the Vivo X100s (99/100 vs 83/100). In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Vivo X100s (99/100 vs 84/100). In the "camera" category, the Vivo X100s is a bit better (84/100 vs 78/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo X100s (92/100 vs 62/100). In the "portability" category, the Vivo X100s notably outperforms the Vivo iQOO 15 Ultra (59/100 vs 35/100).
| Specification | Vivo iQOO 15 Ultra | Vivo X100s | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | MediaTek Dimensity 9300+ | |
| AnTuTu | 4602290 | 2351914 | |
| Geekbench Single | 3640 | 2250 | |
| Geekbench Multi | 11033 | 7315 | |
| Display | 6.8" LTPO AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 1440x3168 | 1260x2800 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7400 mAh | 5100 mAh | |
| Charging | 120W | 100W | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 50 MP | |
| Telephoto | 50 MP | 64 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB / 24GB | 12GB / 16GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 14, OriginOS 4 | |
| Brightness (peak) | 8000 nits | 3000 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.7×76.8×8.7 mm | 163.1×75.8×7.8 mm | |
| Weight | 227 g | 203 g | |
| Launch price | $799 | $699 |
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo X100s
- Main: 50MP f/f/1.6
- Ultrawide: 50MP
- Telephoto: 64MP
- Front: 32MP
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo X100s
- 6.8" LTPO AMOLED
- Resolution: 1260x2800
- Refresh rate: 120 Hz
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Vivo X100s
- 5100 mAh
- Wired: 100W
- No wireless charging
We compared Vivo iQOO 15 Ultra and Vivo X100s, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Vivo X100s by 95.7% in our overall performance rating.
Launch price difference: $100. Vivo X100s was $100 cheaper at launch.
performance
In the "performance" category, the Vivo iQOO 15 Ultra notably outperforms the Vivo X100s (99/100 vs 83/100).
display
In the "display" category, the Vivo iQOO 15 Ultra notably outperforms the Vivo X100s (99/100 vs 84/100).
camera
In the "camera" category, the Vivo X100s is a bit better (84/100 vs 78/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo X100s (92/100 vs 62/100).
portability
In the "portability" category, the Vivo X100s notably outperforms the Vivo iQOO 15 Ultra (59/100 vs 35/100).
Which is better: the Vivo iQOO 15 Ultra or the Vivo X100s?
The Vivo iQOO 15 Ultra is noticeably better than the Vivo X100s — the overall rating gap is 11 points.
What is the rating of the Vivo iQOO 15 Ultra and the Vivo X100s?
The Vivo iQOO 15 Ultra has a MobileRank rating of 89/100, the Vivo X100s — 78/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Vivo X100s?
The Vivo X100s leads on camera score (84/100 vs 78/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Vivo X100s?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 83/100).
Should you choose the Vivo iQOO 15 Ultra over the Vivo X100s?
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 X100s is a better fit for gamers and power users, mobile photography enthusiasts.