Realme X3 vs Samsung Galaxy S26 Ultra
The Realme X3 (2020) runs on the Qualcomm Snapdragon 855+, while the Samsung Galaxy S26 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Samsung Galaxy S26 Ultra leads — 84/100 vs 50/100 (a 34-point difference). Key differences: the Samsung Galaxy S26 Ultra has the bigger battery (5000 mAh vs 4200); the main camera is 64 MP vs 200 MP; the Samsung Galaxy S26 Ultra is faster in AnTuTu (3,463,142 vs 859,084); the Samsung Galaxy S26 Ultra has NFC for contactless payments, the Realme X3 doesn't; the Samsung Galaxy S26 Ultra is thinner (7.9mm vs 8.9mm).
Profile comparison
Category scores
Realme X3
Samsung Galaxy S26 Ultra
What makes Realme X3 better?
- Lighter: 202g vs 214g
- Overall rating 50/100
What makes Samsung Galaxy S26 Ultra better?
- Higher AnTuTu: 3463142 vs 859084
- Better Geekbench Single: 3601 vs 1031
- Better Geekbench Multi: 10686 vs 2864
- Bigger battery: 5000 vs 4200 mAh
- Faster charging: 60W vs 30W
- Better main camera: 200MP vs 64MP
- Higher performance (96/100 vs 55/100)
- Better camera (86/100 vs 48/100)
- Longer battery life (61/100 vs 28/100)
- Better display (88/100 vs 70/100)
- Better portability (51/100 vs 48/100)
Comparison verdict
Comparing the Realme X3 vs the Samsung Galaxy S26 Ultra, the Samsung Galaxy S26 Ultra scores 34 points higher (84/100 vs 50/100). In the "performance" category, the Samsung Galaxy S26 Ultra leads (96/100 vs 55/100). In the "camera" category, the Samsung Galaxy S26 Ultra leads (86/100 vs 48/100). In the "battery" category, the Samsung Galaxy S26 Ultra leads (61/100 vs 28/100). In the "performance" category, the Samsung Galaxy S26 Ultra significantly outperforms the Realme X3 (96/100 vs 55/100). In the "display" category, the Samsung Galaxy S26 Ultra notably outperforms the Realme X3 (88/100 vs 70/100). In the "camera" category, the Samsung Galaxy S26 Ultra significantly outperforms the Realme X3 (86/100 vs 48/100). In the "battery" category, the Samsung Galaxy S26 Ultra significantly outperforms the Realme X3 (61/100 vs 28/100). In the "portability" category, the Samsung Galaxy S26 Ultra and the Realme X3 are nearly equal (51/100 vs 48/100).
Specs comparison
| Specification | Realme X3 | Samsung Galaxy S26 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 855+ | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 859084 | 3463142 | |
| Geekbench Single | 1031 | 3601 | |
| Geekbench Multi | 2864 | 10686 | |
| Display | 6.0" IPS LCD | 6.9" Dynamic AMOLED 2X | |
| Resolution | 1080x2400 | 3120x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 4200 mAh | 5000 mAh | |
| Charging | 30W | 60W | |
| Wireless charging | 0W | 25W | |
| DXOMark (camera) | — | 157 | |
| Main camera | 64 MP | 200 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 12 MP | 50 MP | |
| Front camera | 16 MP | 12 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB | 256GB / 512GB / 1TB | |
| OS | Android 10, Realme UI | Android 16 / One UI 8.5 | |
| Brightness (peak) | — | 2600 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 163.8×75.8×8.9 mm | 163.6×78.1×7.9 mm | |
| Weight | 202 g | 214 g | |
| Launch price | — | $1299 |
Camera comparison
Realme X3
- Main: 64MP f/1.8
- Ultrawide: 8MP
- Telephoto: 12MP
- Front: 16MP
Samsung Galaxy S26 Ultra
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 12MP
Display comparison
Realme X3
- 6.0" IPS LCD
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Samsung Galaxy S26 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3120x1440
- Refresh rate: 120 Hz
Battery and charging
Realme X3
- 4200 mAh
- Wired: 30W
- 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 Realme X3 and Samsung Galaxy S26 Ultra, covering their specs and all relevant benchmarks.
Samsung Galaxy S26 Ultra leads Realme X3 by 75.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Realme X3
Price unknownDetailed category analysis
performance
In the "performance" category, the Samsung Galaxy S26 Ultra significantly outperforms the Realme X3 (96/100 vs 55/100).
display
In the "display" category, the Samsung Galaxy S26 Ultra notably outperforms the Realme X3 (88/100 vs 70/100).
camera
In the "camera" category, the Samsung Galaxy S26 Ultra significantly outperforms the Realme X3 (86/100 vs 48/100).
battery
In the "battery" category, the Samsung Galaxy S26 Ultra significantly outperforms the Realme X3 (61/100 vs 28/100).
portability
In the "portability" category, the Samsung Galaxy S26 Ultra and the Realme X3 are nearly equal (51/100 vs 48/100).
Frequently asked questions
Which is better: the Realme X3 or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra significantly outperforms the Realme X3 by 34 points (84/100 vs 50/100).
What is the rating of the Realme X3 and the Samsung Galaxy S26 Ultra?
The Realme X3 has a MobileRank rating of 50/100, the Samsung Galaxy S26 Ultra — 84/100.
Which has the better camera: the Realme X3 or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra leads on camera score (86/100 vs 48/100).
Which is more powerful: the Realme X3 or the Samsung Galaxy S26 Ultra?
The Samsung Galaxy S26 Ultra leads on performance (96/100 vs 55/100).
Should you choose the Realme X3 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.