Samsung Galaxy S23 vs Xiaomi 15 Ultra
The Samsung Galaxy S23 (2023) runs on the Qualcomm Snapdragon 8 Gen 2, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $229 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 66/100 (a 19-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 3900); the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 1,660,456); per DXOMark lab testing, the Xiaomi 15 Ultra has the stronger camera (159 vs 133); the Samsung Galaxy S23 is noticeably lighter (168g vs 225g).
Samsung Galaxy S23
Xiaomi 15 Ultra
- Lighter: 168g vs 225g
- Cheaper: $229 vs $999
- Better portability (83/100 vs 29/100)
- Higher AnTuTu: 3030376 vs 1660456
- Better Geekbench Single: 3050 vs 2004
- Better Geekbench Multi: 10200 vs 5311
- Bigger battery: 6000 vs 3900 mAh
- Faster charging: 90W vs 25W
- Faster wireless charging: 50W vs 15W
- Higher performance (92/100 vs 75/100)
- Better camera (87/100 vs 67/100)
- Longer battery life (80/100 vs 29/100)
- Better display (90/100 vs 82/100)
Comparing the Samsung Galaxy S23 vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 19 points higher (85/100 vs 66/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 75/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 67/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 29/100). In the "performance" category, the Xiaomi 15 Ultra notably outperforms the Samsung Galaxy S23 (92/100 vs 75/100). In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 82/100). In the "camera" category, the Xiaomi 15 Ultra notably outperforms the Samsung Galaxy S23 (87/100 vs 67/100). In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S23 (80/100 vs 29/100). In the "portability" category, the Samsung Galaxy S23 significantly outperforms the Xiaomi 15 Ultra (83/100 vs 29/100).
| Specification | Samsung Galaxy S23 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Gen 2 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1660456 | 3030376 | |
| Geekbench Single | 2004 | 3050 | |
| Geekbench Multi | 5311 | 10200 | |
| Display | 6.1" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 2340x1080 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 3900 mAh | 6000 mAh | |
| Charging | 25W | 90W | |
| Wireless charging | 15W | 50W | |
| DXOMark (camera) | 133 | 159 | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 10 MP | 50 MP | |
| Front camera | 12 MP | 32 MP | |
| RAM | 8GB | 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 13 | Android 15 / HyperOS 2 | |
| Brightness (peak) | 1750 nits | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 157.8×76.2×7.6 mm | 161.3×75.3×9.4 mm | |
| Weight | 168 g | 225 g | |
| Price | $229 | $999 |
Samsung Galaxy S23
- Main: 50MP f/1.8
- Ultrawide: 12MP
- Telephoto: 10MP
- Front: 12MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Samsung Galaxy S23
- 6.1" AMOLED
- Resolution: 2340x1080
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Samsung Galaxy S23
- 3900 mAh
- Wired: 25W
- Wireless: 15W
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared Samsung Galaxy S23 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Samsung Galaxy S23 by 45.2% in our overall performance rating.
Price difference: $770. Samsung Galaxy S23 is cheaper by $770.
performance
In the "performance" category, the Xiaomi 15 Ultra notably outperforms the Samsung Galaxy S23 (92/100 vs 75/100).
display
In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 82/100).
camera
In the "camera" category, the Xiaomi 15 Ultra notably outperforms the Samsung Galaxy S23 (87/100 vs 67/100).
battery
In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S23 (80/100 vs 29/100).
portability
In the "portability" category, the Samsung Galaxy S23 significantly outperforms the Xiaomi 15 Ultra (83/100 vs 29/100).
Which is better: the Samsung Galaxy S23 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra is noticeably better than the Samsung Galaxy S23 — the overall rating gap is 19 points.
What is the rating of the Samsung Galaxy S23 and the Xiaomi 15 Ultra?
The Samsung Galaxy S23 has a MobileRank rating of 66/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Samsung Galaxy S23 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 67/100).
Which is more powerful: the Samsung Galaxy S23 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 75/100).
Should you choose the Samsung Galaxy S23 over the Xiaomi 15 Ultra?
The Samsung Galaxy S23 is a better fit for active users, budget-conscious buyers. The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life.