Vivo iQOO 15 vs Xiaomi 12S Ultra
The Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi 12S Ultra (2022) runs on the Qualcomm Snapdragon 8+ Gen 1. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 71/100 (a 15-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 4800); the main camera is 50 MP vs 3 MP; the Vivo iQOO 15 is faster in AnTuTu (3,740,528 vs 1,627,862); the Vivo iQOO 15 is thinner (8.1mm vs 9.1mm).
Vivo iQOO 15
Xiaomi 12S Ultra
- Higher AnTuTu: 3740528 vs 1627862
- Better Geekbench Single: 3041 vs 1761
- Better Geekbench Multi: 9494 vs 4688
- Bigger battery: 7000 vs 4800 mAh
- Faster charging: 100W vs 67W
- Better main camera: 50MP vs 3MP
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 215g vs 225g
- Higher performance (94/100 vs 73/100)
- Better camera (78/100 vs 70/100)
- Longer battery life (85/100 vs 64/100)
- Better display (99/100 vs 90/100)
- Better portability (48/100 vs 32/100)
- Faster wireless charging: 50W vs 40W
- Overall rating 71/100
Comparing the Vivo iQOO 15 vs the Xiaomi 12S Ultra, the Vivo iQOO 15 scores 15 points higher (86/100 vs 71/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 73/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 64/100). In the "performance" category, the Vivo iQOO 15 notably outperforms the Xiaomi 12S Ultra (94/100 vs 73/100). In the "display" category, the Vivo iQOO 15 is a bit better (99/100 vs 90/100). In the "camera" category, the Vivo iQOO 15 is a bit better (78/100 vs 70/100). In the "battery" category, the Vivo iQOO 15 notably outperforms the Xiaomi 12S Ultra (85/100 vs 64/100). In the "portability" category, the Vivo iQOO 15 notably outperforms the Xiaomi 12S Ultra (48/100 vs 32/100).
| Specification | Vivo iQOO 15 | Xiaomi 12S Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8+ Gen 1 | |
| AnTuTu | 3740528 | 1627862 | |
| Geekbench Single | 3041 | 1761 | |
| Geekbench Multi | 9494 | 4688 | |
| Display | 6.8" LTPO AMOLED | 6.7" LTPO2 AMOLED | |
| Resolution | 1440x3168 | 1440x3200 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 4800 mAh | |
| Charging | 100W | 67W | |
| Wireless charging | 40W | 50W | |
| DXOMark (camera) | — | 136 | |
| Main camera | 50 MP | 3 MP | |
| Ultrawide | 50 MP | 48 MP | |
| Telephoto | 50 MP | 48 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 16 | Android 12, MIUI 13 | |
| Brightness (peak) | 6000 nits | 1500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 163.7×76.8×8.1 mm | 163.2×75.0×9.1 mm | |
| Weight | 215 g | 225 g | |
| Launch price | $599 | — |
Vivo iQOO 15
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Xiaomi 12S Ultra
- Main: 3MP f/f/1.9
- Ultrawide: 48MP
- Telephoto: 48MP
- Front: 32MP
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Xiaomi 12S Ultra
- 6.7" LTPO2 AMOLED
- Resolution: 1440x3200
- Refresh rate: 120 Hz
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
Xiaomi 12S Ultra
- 4800 mAh
- Wired: 67W
- Wireless: 50W
We compared Vivo iQOO 15 and Xiaomi 12S Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Xiaomi 12S Ultra by 129.8% in our overall performance rating.
Xiaomi 12S Ultra
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 notably outperforms the Xiaomi 12S Ultra (94/100 vs 73/100).
display
In the "display" category, the Vivo iQOO 15 is a bit better (99/100 vs 90/100).
camera
In the "camera" category, the Vivo iQOO 15 is a bit better (78/100 vs 70/100).
battery
In the "battery" category, the Vivo iQOO 15 notably outperforms the Xiaomi 12S Ultra (85/100 vs 64/100).
portability
In the "portability" category, the Vivo iQOO 15 notably outperforms the Xiaomi 12S Ultra (48/100 vs 32/100).
Which is better: the Vivo iQOO 15 or the Xiaomi 12S Ultra?
The Vivo iQOO 15 is noticeably better than the Xiaomi 12S Ultra — the overall rating gap is 15 points.
What is the rating of the Vivo iQOO 15 and the Xiaomi 12S Ultra?
The Vivo iQOO 15 has a MobileRank rating of 86/100, the Xiaomi 12S Ultra — 71/100.
Which has the better camera: the Vivo iQOO 15 or the Xiaomi 12S Ultra?
The Vivo iQOO 15 leads on camera score (78/100 vs 70/100).
Which is more powerful: the Vivo iQOO 15 or the Xiaomi 12S Ultra?
The Vivo iQOO 15 leads on performance (94/100 vs 73/100).
Should you choose the Vivo iQOO 15 over the Xiaomi 12S Ultra?
The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Xiaomi 12S Ultra is a better fit for active users.