Redmi Note 15 vs Samsung Galaxy S25 Ultra
The Redmi Note 15 (2026) runs on the Qualcomm Snapdragon 6 Gen 3, while the Samsung Galaxy S25 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $229 and $1299. By overall MobileRank rating, the Samsung Galaxy S25 Ultra leads — 80/100 vs 57/100 (a 23-point difference). Key differences: the Redmi Note 15 has the bigger battery (5520 mAh vs 5000); the main camera is 108 MP vs 200 MP; the Samsung Galaxy S25 Ultra is faster in AnTuTu (3,128,552 vs 840,353); the Redmi Note 15 is noticeably lighter (178g vs 218g).
Profile comparison
Category scores
Redmi Note 15
Samsung Galaxy S25 Ultra
What makes Redmi Note 15 better?
- Bigger battery: 5520 vs 5000 mAh
- Lighter: 178g vs 218g
- Cheaper at launch: $229 vs $1299
- Better portability (79/100 vs 46/100)
What makes Samsung Galaxy S25 Ultra better?
- Higher AnTuTu: 3128552 vs 840353
- Better Geekbench Single: 3100 vs 1013
- Better Geekbench Multi: 9760 vs 3000
- Better main camera: 200MP vs 108MP
- Higher performance (92/100 vs 55/100)
- Better camera (81/100 vs 46/100)
- Longer battery life (56/100 vs 54/100)
- Better display (88/100 vs 79/100)
Comparison verdict
Comparing the Redmi Note 15 vs the Samsung Galaxy S25 Ultra, the Samsung Galaxy S25 Ultra scores 23 points higher (80/100 vs 57/100). In the "performance" category, the Samsung Galaxy S25 Ultra leads (92/100 vs 55/100). In the "camera" category, the Samsung Galaxy S25 Ultra leads (81/100 vs 46/100). Value score: Redmi Note 15 — 68/100, Samsung Galaxy S25 Ultra — 70/100; 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 Samsung Galaxy S25 Ultra significantly outperforms the Redmi Note 15 (92/100 vs 55/100). In the "display" category, the Samsung Galaxy S25 Ultra is a bit better (88/100 vs 79/100). In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Redmi Note 15 (81/100 vs 46/100). In the "battery" category, the Samsung Galaxy S25 Ultra and the Redmi Note 15 are nearly equal (56/100 vs 54/100). In the "portability" category, the Redmi Note 15 significantly outperforms the Samsung Galaxy S25 Ultra (79/100 vs 46/100).
Specs comparison
| Specification | Redmi Note 15 | Samsung Galaxy S25 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 6 Gen 3 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 840353 | 3128552 | |
| Geekbench Single | 1013 | 3100 | |
| Geekbench Multi | 3000 | 9760 | |
| Display | 6.8" AMOLED | 6.9" Dynamic AMOLED 2X | |
| Resolution | 2392x1080 | 3120x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5520 mAh | 5000 mAh | |
| Charging | 45W | 45W | |
| Wireless charging | 0W | 15W | |
| DXOMark (camera) | — | 151 | |
| Main camera | 108 MP | 200 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 12 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 15 | Android 15 / One UI 7 | |
| Brightness (peak) | 3200 nits | 2600 nits | |
| NFC | yes | yes | |
| Protection | IP66 | IP68 | |
| Dimensions | 164.0×75.4×7.4 mm | 162.8×77.6×8.2 mm | |
| Weight | 178 g | 218 g | |
| Launch price | $229 | $1299 |
Camera comparison
Redmi Note 15
- Main: 108MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy S25 Ultra
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Display comparison
Redmi Note 15
- 6.8" AMOLED
- Resolution: 2392x1080
- Refresh rate: 120 Hz
Samsung Galaxy S25 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Battery and charging
Redmi Note 15
- 5520 mAh
- Wired: 45W
- No wireless charging
Samsung Galaxy S25 Ultra
- 5000 mAh
- NanoReview test: web browsing 11:10 hrs, total 28:43 hrs
- Wired: 45W
- Wireless: 15W
Overall performance score
We compared Redmi Note 15 and Samsung Galaxy S25 Ultra, covering their specs and all relevant benchmarks.
Samsung Galaxy S25 Ultra leads Redmi Note 15 by 73.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $1070. Redmi Note 15 was $1070 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Redmi Note 15 (92/100 vs 55/100).
display
In the "display" category, the Samsung Galaxy S25 Ultra is a bit better (88/100 vs 79/100).
camera
In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Redmi Note 15 (81/100 vs 46/100).
battery
In the "battery" category, the Samsung Galaxy S25 Ultra and the Redmi Note 15 are nearly equal (56/100 vs 54/100).
portability
In the "portability" category, the Redmi Note 15 significantly outperforms the Samsung Galaxy S25 Ultra (79/100 vs 46/100).
Frequently asked questions
Which is better: the Redmi Note 15 or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra significantly outperforms the Redmi Note 15 by 23 points (80/100 vs 57/100).
What is the rating of the Redmi Note 15 and the Samsung Galaxy S25 Ultra?
The Redmi Note 15 has a MobileRank rating of 57/100, the Samsung Galaxy S25 Ultra — 80/100.
Which has the better camera: the Redmi Note 15 or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on camera score (81/100 vs 46/100).
Which is more powerful: the Redmi Note 15 or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on performance (92/100 vs 55/100).
Should you choose the Redmi Note 15 over the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra is a better fit for gamers and power users, mobile photography enthusiasts.