Redmi K90 Pro Max vs Samsung Galaxy S23 Ultra
The Redmi K90 Pro Max (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Samsung Galaxy S23 Ultra (2023) runs on the Qualcomm Snapdragon 8 Gen 2; launch prices were $561 and $1199. By overall MobileRank rating, the Redmi K90 Pro Max leads — 86/100 vs 70/100 (a 16-point difference). Key differences: the Redmi K90 Pro Max has the bigger battery (7560 mAh vs 5000); the main camera is 50 MP vs 200 MP; the Redmi K90 Pro Max is faster in AnTuTu (3,622,315 vs 1,684,869); the Redmi K90 Pro Max is noticeably lighter (210g vs 234g).
Profile comparison
Category scores
Redmi K90 Pro Max
Samsung Galaxy S23 Ultra
What makes Redmi K90 Pro Max better?
- Higher AnTuTu: 3622315 vs 1684869
- Better Geekbench Single: 3639 vs 2004
- Better Geekbench Multi: 11047 vs 5311
- Bigger battery: 7560 vs 5000 mAh
- Faster charging: 100W vs 45W
- Faster wireless charging: 50W vs 15W
- Lighter: 210g vs 234g
- Cheaper at launch: $561 vs $1199
- Higher performance (97/100 vs 75/100)
- Better camera (78/100 vs 73/100)
- Longer battery life (89/100 vs 56/100)
- Better portability (54/100 vs 29/100)
What makes Samsung Galaxy S23 Ultra better?
- Better main camera: 200MP vs 50MP
- Better display (88/100 vs 81/100)
Comparison verdict
Comparing the Redmi K90 Pro Max vs the Samsung Galaxy S23 Ultra, the Redmi K90 Pro Max scores 16 points higher (86/100 vs 70/100). In the "performance" category, the Redmi K90 Pro Max leads (97/100 vs 75/100). In the "battery" category, the Redmi K90 Pro Max leads (89/100 vs 56/100). Value score: Redmi K90 Pro Max — 90/100, 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 Pro Max notably outperforms the Samsung Galaxy S23 Ultra (97/100 vs 75/100). In the "display" category, the Samsung Galaxy S23 Ultra is a bit better (88/100 vs 81/100). In the "camera" category, the Redmi K90 Pro Max is a bit better (78/100 vs 73/100). In the "battery" category, the Redmi K90 Pro Max significantly outperforms the Samsung Galaxy S23 Ultra (89/100 vs 56/100). In the "portability" category, the Redmi K90 Pro Max notably outperforms the Samsung Galaxy S23 Ultra (54/100 vs 29/100).
Specs comparison
| Specification | Redmi K90 Pro Max | Samsung Galaxy S23 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 8 Gen 2 | |
| AnTuTu | 3622315 | 1684869 | |
| Geekbench Single | 3639 | 2004 | |
| Geekbench Multi | 11047 | 5311 | |
| Display | 6.9" OLED | 6.8" AMOLED | |
| Resolution | 2608x1200 | 1440x3088 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 7560 mAh | 5000 mAh | |
| Charging | 100W | 45W | |
| Wireless charging | 50W | 15W | |
| DXOMark (camera) | — | 140 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 50 MP | 12 MP | |
| Telephoto | 50 MP | 10 MP | |
| Front camera | 32 MP | 12 MP | |
| RAM | 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 | IP68 | IP68 | |
| Dimensions | 163.3×77.8×7.9 mm | 163.4×78.1×8.9 mm | |
| Weight | 210 g | 234 g | |
| Launch price | $561 | $1199 |
Camera comparison
Redmi K90 Pro Max
- Main: 50MP f/1.88
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Samsung Galaxy S23 Ultra
- Main: 200MP f/1.7
- Ultrawide: 12MP
- Telephoto: 10MP
- Front: 12MP
Display comparison
Redmi K90 Pro Max
- 6.9" OLED
- Resolution: 2608x1200
- Refresh rate: 120 Hz
Samsung Galaxy S23 Ultra
- 6.8" AMOLED
- Resolution: 1440x3088
- Refresh rate: 120 Hz
Battery and charging
Redmi K90 Pro Max
- 7560 mAh
- Wired: 100W
- Wireless: 50W
Samsung Galaxy S23 Ultra
- 5000 mAh
- Wired: 45W
- Wireless: 15W
Overall performance score
We compared Redmi K90 Pro Max and Samsung Galaxy S23 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Pro Max leads Samsung Galaxy S23 Ultra by 115.0% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $638. Redmi K90 Pro Max was $638 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Pro Max notably outperforms the Samsung Galaxy S23 Ultra (97/100 vs 75/100).
display
In the "display" category, the Samsung Galaxy S23 Ultra is a bit better (88/100 vs 81/100).
camera
In the "camera" category, the Redmi K90 Pro Max is a bit better (78/100 vs 73/100).
battery
In the "battery" category, the Redmi K90 Pro Max significantly outperforms the Samsung Galaxy S23 Ultra (89/100 vs 56/100).
portability
In the "portability" category, the Redmi K90 Pro Max notably outperforms the Samsung Galaxy S23 Ultra (54/100 vs 29/100).
Frequently asked questions
Which is better: the Redmi K90 Pro Max or the Samsung Galaxy S23 Ultra?
The Redmi K90 Pro Max is noticeably better than the Samsung Galaxy S23 Ultra — the overall rating gap is 16 points.
What is the rating of the Redmi K90 Pro Max and the Samsung Galaxy S23 Ultra?
The Redmi K90 Pro Max has a MobileRank rating of 86/100, the Samsung Galaxy S23 Ultra — 70/100.
Which has the better camera: the Redmi K90 Pro Max or the Samsung Galaxy S23 Ultra?
The Redmi K90 Pro Max leads on camera score (78/100 vs 73/100).
Which is more powerful: the Redmi K90 Pro Max or the Samsung Galaxy S23 Ultra?
The Redmi K90 Pro Max leads on performance (97/100 vs 75/100).
Should you choose the Redmi K90 Pro Max over the Samsung Galaxy S23 Ultra?
The Redmi K90 Pro Max is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Samsung Galaxy S23 Ultra is a better fit for active users.