Redmi K90 Max vs Samsung Galaxy S23 Ultra
The Redmi K90 Max (2026) runs on the MediaTek Dimensity 9500, while the Samsung Galaxy S23 Ultra (2023) runs on the Qualcomm Snapdragon 8 Gen 2; launch prices were $504 and $1199. By overall MobileRank rating, the Redmi K90 Max leads — 75/100 vs 70/100 (a 5-point difference). Key differences: the Redmi K90 Max has the bigger battery (8550 mAh vs 5000); the main camera is 50 MP vs 200 MP; the Redmi K90 Max is faster in AnTuTu (3,760,662 vs 1,684,869).
Profile comparison
Category scores
Redmi K90 Max
Samsung Galaxy S23 Ultra
What makes Redmi K90 Max better?
- Higher AnTuTu: 3760662 vs 1684869
- Better Geekbench Single: 3293 vs 2004
- Better Geekbench Multi: 10243 vs 5311
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 45W
- Higher refresh rate: 165Hz vs 120Hz
- Lighter: 227g vs 234g
- Cheaper at launch: $504 vs $1199
- Higher performance (96/100 vs 75/100)
- Longer battery life (78/100 vs 56/100)
- Better display (94/100 vs 88/100)
- Better portability (41/100 vs 29/100)
What makes Samsung Galaxy S23 Ultra better?
- Better main camera: 200MP vs 50MP
- Better camera (73/100 vs 37/100)
Comparison verdict
Comparing the Redmi K90 Max vs the Samsung Galaxy S23 Ultra, the Redmi K90 Max scores 5 points higher (75/100 vs 70/100). In the "performance" category, the Redmi K90 Max leads (96/100 vs 75/100). In the "camera" category, the Samsung Galaxy S23 Ultra leads (73/100 vs 37/100). In the "battery" category, the Redmi K90 Max leads (78/100 vs 56/100). Value score: Redmi K90 Max — 72/100, Samsung Galaxy S23 Ultra — 50/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Redmi K90 Max notably outperforms the Samsung Galaxy S23 Ultra (96/100 vs 75/100). In the "display" category, the Redmi K90 Max is a bit better (94/100 vs 88/100). In the "camera" category, the Samsung Galaxy S23 Ultra significantly outperforms the Redmi K90 Max (73/100 vs 37/100). In the "battery" category, the Redmi K90 Max notably outperforms the Samsung Galaxy S23 Ultra (78/100 vs 56/100). In the "portability" category, the Redmi K90 Max is a bit better (41/100 vs 29/100).
Specs comparison
| Specification | Redmi K90 Max | Samsung Galaxy S23 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Qualcomm Snapdragon 8 Gen 2 | |
| AnTuTu | 3760662 | 1684869 | |
| Geekbench Single | 3293 | 2004 | |
| Geekbench Multi | 10243 | 5311 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 2772x1280 | 1440x3088 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 5000 mAh | |
| Charging | 100W | 45W | |
| Wireless charging | 0W | 15W | |
| DXOMark (camera) | — | 140 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 8 MP | 12 MP | |
| Telephoto | 0 MP | 10 MP | |
| Front camera | 20 MP | 12 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 13, up to 4 major Android upgrades, One UI 8 | |
| Brightness (peak) | 3500 nits | 1750 nits | |
| NFC | yes | yes | |
| Protection | IP66 | IP68 | |
| Dimensions | 162.9×77.9×8.1 mm | 163.4×78.1×8.9 mm | |
| Weight | 227 g | 234 g | |
| Launch price | $504 | $1199 |
Camera comparison
Redmi K90 Max
- Main: 50MP f/1.68
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy S23 Ultra
- Main: 200MP f/1.7
- Ultrawide: 12MP
- Telephoto: 10MP
- Front: 12MP
Display comparison
Redmi K90 Max
- 6.8" AMOLED
- Resolution: 2772x1280
- Refresh rate: 165 Hz
Samsung Galaxy S23 Ultra
- 6.8" AMOLED
- Resolution: 1440x3088
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Max
- 8550 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy S23 Ultra
- 5000 mAh
- Wired: 45W
- Wireless: 15W
Overall performance score
We compared Redmi K90 Max and Samsung Galaxy S23 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Max leads Samsung Galaxy S23 Ultra by 123.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $695. Redmi K90 Max was $695 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Max notably outperforms the Samsung Galaxy S23 Ultra (96/100 vs 75/100).
display
In the "display" category, the Redmi K90 Max is a bit better (94/100 vs 88/100).
camera
In the "camera" category, the Samsung Galaxy S23 Ultra significantly outperforms the Redmi K90 Max (73/100 vs 37/100).
battery
In the "battery" category, the Redmi K90 Max notably outperforms the Samsung Galaxy S23 Ultra (78/100 vs 56/100).
portability
In the "portability" category, the Redmi K90 Max is a bit better (41/100 vs 29/100).
Frequently asked questions
Which is better: the Redmi K90 Max or the Samsung Galaxy S23 Ultra?
The Redmi K90 Max edges out the Samsung Galaxy S23 Ultra by just 5 points — the two devices are very close in overall level.
What is the rating of the Redmi K90 Max and the Samsung Galaxy S23 Ultra?
The Redmi K90 Max has a MobileRank rating of 75/100, the Samsung Galaxy S23 Ultra — 70/100.
Which has the better camera: the Redmi K90 Max or the Samsung Galaxy S23 Ultra?
The Samsung Galaxy S23 Ultra leads on camera score (73/100 vs 37/100).
Which is more powerful: the Redmi K90 Max or the Samsung Galaxy S23 Ultra?
The Redmi K90 Max leads on performance (96/100 vs 75/100).
Should you choose the Redmi K90 Max over the Samsung Galaxy S23 Ultra?
The Redmi K90 Max is a better fit for gamers and power users, those who care about battery life. The Samsung Galaxy S23 Ultra is a better fit for active users.