Vivo iQOO 15 Ultra vs Xiaomi 12S
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Xiaomi 12S (2022) runs on the Qualcomm Snapdragon 8+ Gen 1. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 84/100 vs 41/100 (a 43-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 4500); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 1,381,634); the Xiaomi 12S is noticeably lighter (179g vs 227g).
Vivo iQOO 15 Ultra
Xiaomi 12S
- Higher AnTuTu: 4602290 vs 1381634
- Better Geekbench Single: 3640 vs 1761
- Better Geekbench Multi: 11033 vs 4688
- Bigger battery: 7400 vs 4500 mAh
- Faster charging: 120W vs 67W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (97/100 vs 21/100)
- Better camera (74/100 vs 41/100)
- Longer battery life (86/100 vs 35/100)
- Lighter: 179g vs 227g
- Better design/ergonomics (76/100 vs 16/100)
Comparing the Vivo iQOO 15 Ultra vs the Xiaomi 12S, the Vivo iQOO 15 Ultra scores 43 points higher (84/100 vs 41/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (97/100 vs 21/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (74/100 vs 41/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (86/100 vs 35/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi 12S (97/100 vs 21/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi 12S (74/100 vs 41/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi 12S (86/100 vs 35/100). In the "design" category, the Xiaomi 12S significantly outperforms the Vivo iQOO 15 Ultra (76/100 vs 16/100). In the "value for money" category, both devices are on the same level — 55/100.
| Specification | Vivo iQOO 15 Ultra | Xiaomi 12S | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8+ Gen 1 | |
| AnTuTu | 4602290 | 1381634 | |
| Geekbench Single | 3640 | 1761 | |
| Geekbench Multi | 11033 | 4688 | |
| Display | 6.8" LTPO AMOLED | 6.3" AMOLED | |
| Resolution | 1440x3168 | 1080x2400 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7400 mAh | 4500 mAh | |
| Charging | 120W | 67W | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 13 MP | |
| Telephoto | 50 MP | 5 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB / 24GB | 8GB / 12GB | |
| Storage | 256GB / 512GB / 1TB | 128GB / 256GB / 512GB | |
| OS | Android 16 | Android 12, MIUI 13 | |
| Brightness (peak) | 8000 nits | 1100 nits | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 163.7×76.8×8.7 mm | 152.7×69.9×8.2 mm | |
| Weight | 227 g | 179 g | |
| Price | $799 | — |
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Xiaomi 12S
- Main: 50MP f/f/1.9
- Ultrawide: 13MP
- Telephoto: 5MP
- Front: 32MP
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Xiaomi 12S
- 6.3" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Xiaomi 12S
- 4500 mAh
- Wired: 67W
- No wireless charging
We compared Vivo iQOO 15 Ultra and Xiaomi 12S, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Xiaomi 12S by 233.1% in our overall performance rating.
Xiaomi 12S
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi 12S (97/100 vs 21/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi 12S (74/100 vs 41/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Xiaomi 12S (86/100 vs 35/100).
design
In the "design" category, the Xiaomi 12S significantly outperforms the Vivo iQOO 15 Ultra (76/100 vs 16/100).
value for money
In the "value for money" category, both devices are on the same level — 55/100.
Which is better: the Vivo iQOO 15 Ultra or the Xiaomi 12S?
The Vivo iQOO 15 Ultra significantly outperforms the Xiaomi 12S by 43 points (84/100 vs 41/100).
What is the rating of the Vivo iQOO 15 Ultra and the Xiaomi 12S?
The Vivo iQOO 15 Ultra has a MobileRank rating of 84/100, the Xiaomi 12S — 41/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Xiaomi 12S?
The Vivo iQOO 15 Ultra leads on camera score (74/100 vs 41/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Xiaomi 12S?
The Vivo iQOO 15 Ultra leads on performance (97/100 vs 21/100).
Should you choose the Vivo iQOO 15 Ultra over the Xiaomi 12S?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life. The Xiaomi 12S is a better fit for everyday use.