Redmi 15 4G vs Samsung Galaxy S25 Ultra
The Redmi 15 4G (2025) runs on the Qualcomm Snapdragon 685, while the Samsung Galaxy S25 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $135 and $1299. By overall MobileRank rating, the Samsung Galaxy S25 Ultra leads — 66/100 vs 32/100 (a 34-point difference). Key differences: the Redmi 15 4G has the bigger battery (7000 mAh vs 5000); the main camera is 50 MP vs 200 MP; the Samsung Galaxy S25 Ultra is faster in AnTuTu (2,800,202 vs 467,392).
Redmi 15 4G
Samsung Galaxy S25 Ultra
- Bigger battery: 7000 vs 5000 mAh
- Higher refresh rate: 144Hz vs 120Hz
- Cheaper: $135 vs $1299
- Longer battery life (53/100 vs 45/100)
- Better value for money (100/100 vs 20/100)
- Higher AnTuTu: 2800202 vs 467392
- Better Geekbench Single: 3100 vs 466
- Better Geekbench Multi: 9760 vs 1396
- Faster charging: 45W vs 33W
- Better main camera: 200MP vs 50MP
- Lighter: 218g vs 224g
- Higher performance (67/100 vs 0/100)
- Better camera (81/100 vs 24/100)
- Better design/ergonomics (27/100 vs 20/100)
Comparing the Redmi 15 4G vs the Samsung Galaxy S25 Ultra, the Samsung Galaxy S25 Ultra scores 34 points higher (66/100 vs 32/100). In the "performance" category, the Samsung Galaxy S25 Ultra leads (67/100 vs 0/100). In the "camera" category, the Samsung Galaxy S25 Ultra leads (81/100 vs 24/100). In the "value for money" category, the Redmi 15 4G leads (100/100 vs 20/100). In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Redmi 15 4G (67/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Redmi 15 4G (81/100 vs 24/100). In the "battery" category, the Redmi 15 4G is a bit better (53/100 vs 45/100). In the "design" category, the Samsung Galaxy S25 Ultra is a bit better (27/100 vs 20/100). In the "value for money" category, the Redmi 15 4G significantly outperforms the Samsung Galaxy S25 Ultra (100/100 vs 20/100).
| Specification | Redmi 15 4G | Samsung Galaxy S25 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 685 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 467392 | 2800202 | |
| Geekbench Single | 466 | 3100 | |
| Geekbench Multi | 1396 | 9760 | |
| Display | 6.9" IPS LCD | 6.9" Dynamic AMOLED 2X | |
| Resolution | 1080x2340 | 3120x1440 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 5000 mAh | |
| Charging | 33W | 45W | |
| Wireless charging | 0W | 15W | |
| DXOMark (camera) | — | 151 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 12 MP | |
| RAM | 4GB / 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 15, HyperOS 2 | Android 15 / One UI 7 | |
| Brightness (peak) | — | 2600 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68 | |
| Dimensions | 171.1×82.1×8.6 mm | 162.8×77.6×8.2 mm | |
| Weight | 224 g | 218 g | |
| Price | $135 | $1299 |
Redmi 15 4G
- Main: 50MP f/f/1.8
- Front: 8MP
Samsung Galaxy S25 Ultra
- Main: 200MP f/f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Redmi 15 4G
- 6.9" IPS LCD
- Resolution: 1080x2340
- Refresh rate: 144 Hz
Samsung Galaxy S25 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Redmi 15 4G
- 7000 mAh
- Wired: 33W
- No wireless charging
Samsung Galaxy S25 Ultra
- 5000 mAh
- NanoReview test: web browsing 11:10 hrs, total 28:43 hrs
- Wired: 45W
- Wireless: 15W
We compared Redmi 15 4G and Samsung Galaxy S25 Ultra, covering their specs and all relevant benchmarks.
Samsung Galaxy S25 Ultra leads Redmi 15 4G by 83.3% in our overall performance rating.
Price difference: $1164. Redmi 15 4G is cheaper by $1164.
performance
In the "performance" category, the Samsung Galaxy S25 Ultra significantly outperforms the Redmi 15 4G (67/100 vs 0/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Samsung Galaxy S25 Ultra significantly outperforms the Redmi 15 4G (81/100 vs 24/100).
battery
In the "battery" category, the Redmi 15 4G is a bit better (53/100 vs 45/100).
design
In the "design" category, the Samsung Galaxy S25 Ultra is a bit better (27/100 vs 20/100).
value for money
In the "value for money" category, the Redmi 15 4G significantly outperforms the Samsung Galaxy S25 Ultra (100/100 vs 20/100).
Which is better: the Redmi 15 4G or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra significantly outperforms the Redmi 15 4G by 34 points (66/100 vs 32/100).
What is the rating of the Redmi 15 4G and the Samsung Galaxy S25 Ultra?
The Redmi 15 4G has a MobileRank rating of 32/100, the Samsung Galaxy S25 Ultra — 66/100.
Which has the better camera: the Redmi 15 4G or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on camera score (81/100 vs 24/100).
Which is more powerful: the Redmi 15 4G or the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra leads on performance (67/100 vs 0/100).
Should you choose the Redmi 15 4G over the Samsung Galaxy S25 Ultra?
The Redmi 15 4G is a better fit for budget-conscious buyers. The Samsung Galaxy S25 Ultra is a better fit for active users, mobile photography enthusiasts.