Redmi Note 15 vs Samsung Galaxy S26 Ultra
The Redmi Note 15 (2026) runs on the Qualcomm Snapdragon 6 Gen 3, while the Samsung Galaxy S26 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $229 and $1299. By overall MobileRank rating, the Samsung Galaxy S26 Ultra leads — 84/100 vs 57/100 (a 27-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 S26 Ultra is faster in AnTuTu (3,939,244 vs 840,353); the Redmi Note 15 is noticeably lighter (178g vs 214g).
Profile comparison
Category scores
Redmi Note 15
Samsung Galaxy S26 Ultra
What makes Redmi Note 15 better?
- Bigger battery: 5520 vs 5000 mAh
- Lighter: 178g vs 214g
- Cheaper at launch: $229 vs $1299
- Better portability (79/100 vs 51/100)
What makes Samsung Galaxy S26 Ultra better?
- Higher AnTuTu: 3939244 vs 840353
- Better Geekbench Single: 3601 vs 1013
- Better Geekbench Multi: 10686 vs 3000
- Faster charging: 60W vs 45W
- Better main camera: 200MP vs 108MP
- Higher performance (97/100 vs 55/100)
- Better camera (86/100 vs 46/100)
- Longer battery life (61/100 vs 54/100)
- Better display (88/100 vs 79/100)
Comparison verdict
Comparing the Redmi Note 15 vs the Samsung Galaxy S26 Ultra, the Samsung Galaxy S26 Ultra scores 27 points higher (84/100 vs 57/100). In the "performance" category, the Samsung Galaxy S26 Ultra leads (97/100 vs 55/100). In the "camera" category, the Samsung Galaxy S26 Ultra leads (86/100 vs 46/100). Value score: Redmi Note 15 — 68/100, Samsung Galaxy S26 Ultra — 78/100; 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 S26 Ultra significantly outperforms the Redmi Note 15 (97/100 vs 55/100). In the "display" category, the Samsung Galaxy S26 Ultra is a bit better (88/100 vs 79/100). In the "camera" category, the Samsung Galaxy S26 Ultra significantly outperforms the Redmi Note 15 (86/100 vs 46/100). In the "battery" category, the Samsung Galaxy S26 Ultra is a bit better (61/100 vs 54/100). In the "portability" category, the Redmi Note 15 notably outperforms the Samsung Galaxy S26 Ultra (79/100 vs 51/100).
Specs comparison
| Specification | Redmi Note 15 | Samsung Galaxy S26 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 6 Gen 3 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 840353 | 3939244 | |
| Geekbench Single | 1013 | 3601 | |
| Geekbench Multi | 3000 | 10686 | |
| 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 | 60W | |
| Wireless charging | 0W | 25W | |
| DXOMark (camera) | — | 157 | |
| 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 16 / One UI 8.5 | |
| Brightness (peak) | 3200 nits | 2600 nits | |
| NFC | yes | yes | |
| Protection | IP66 | IP68 | |
| Dimensions | 164.0×75.4×7.4 mm | 163.6×78.1×7.9 mm | |
| Weight | 178 g | 214 g | |
| Launch price | $229 | $1299 |
Camera comparison
Redmi Note 15
- Main: 108MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Samsung Galaxy S26 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 S26 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 S26 Ultra
- 5000 mAh
- NanoReview test: web browsing 10:12 hrs, total 28:50 hrs
- Wired: 60W
- Wireless: 25W
Overall performance score
We compared Redmi Note 15 and Samsung Galaxy S26 Ultra, covering their specs and all relevant benchmarks.
Samsung Galaxy S26 Ultra leads Redmi Note 15 by 78.7% 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 S26 Ultra significantly outperforms the Redmi Note 15 (97/100 vs 55/100).
display
In the "display" category, the Samsung Galaxy S26 Ultra is a bit better (88/100 vs 79/100).
camera
In the "camera" category, the Samsung Galaxy S26 Ultra significantly outperforms the Redmi Note 15 (86/100 vs 46/100).
battery
In the "battery" category, the Samsung Galaxy S26 Ultra is a bit better (61/100 vs 54/100).
portability
In the "portability" category, the Redmi Note 15 notably outperforms the Samsung Galaxy S26 Ultra (79/100 vs 51/100).
Frequently asked questions
Which is better: the Redmi Note 15 or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra significantly outperforms the Redmi Note 15 by 27 points (84/100 vs 57/100).
What is the rating of the Redmi Note 15 and the Samsung Galaxy S26 Ultra?
The Redmi Note 15 has a MobileRank rating of 57/100, the Samsung Galaxy S26 Ultra — 84/100.
Which has the better camera: the Redmi Note 15 or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra leads on camera score (86/100 vs 46/100).
Which is more powerful: the Redmi Note 15 or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra leads on performance (97/100 vs 55/100).
Should you choose the Redmi Note 15 over the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, budget-conscious buyers.