OnePlus 15 vs Realme C100x
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Realme C100x (2026) runs on the Unisoc T7250; launch prices were $799 and $175. By overall MobileRank rating, the OnePlus 15 leads — 86/100 vs 42/100 (a 44-point difference). Key differences: the Realme C100x has the bigger battery (8000 mAh vs 6500).
Profile comparison
Category scores
OnePlus 15
Realme C100x
What makes OnePlus 15 better?
- Better Geekbench Single: 3639 vs 600
- Better Geekbench Multi: 11047 vs 1800
- Faster charging: 120W vs 45W
- Lighter: 213g vs 219g
- Higher performance (97/100 vs 32/100)
- Better camera (78/100 vs 30/100)
- Longer battery life (89/100 vs 75/100)
- Better display (84/100 vs 55/100)
- Better portability (50/100 vs 40/100)
What makes Realme C100x better?
- Bigger battery: 8000 vs 6500 mAh
- Cheaper at launch: $175 vs $799
- Overall rating 42/100
Comparison verdict
Comparing the OnePlus 15 vs the Realme C100x, the OnePlus 15 scores 44 points higher (86/100 vs 42/100). In the "performance" category, the OnePlus 15 leads (97/100 vs 32/100). In the "camera" category, the OnePlus 15 leads (78/100 vs 30/100). In the "battery" category, the OnePlus 15 leads (89/100 vs 75/100). Value score: OnePlus 15 — 86/100, Realme C100x — 52/100; 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 OnePlus 15 significantly outperforms the Realme C100x (97/100 vs 32/100). In the "display" category, the OnePlus 15 notably outperforms the Realme C100x (84/100 vs 55/100). In the "camera" category, the OnePlus 15 significantly outperforms the Realme C100x (78/100 vs 30/100). In the "battery" category, the OnePlus 15 is a bit better (89/100 vs 75/100). In the "portability" category, the OnePlus 15 is a bit better (50/100 vs 40/100).
Specs comparison
| Specification | OnePlus 15 | Realme C100x | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Unisoc T7250 | |
| AnTuTu | 3606149 | — | |
| Geekbench Single | 3639 | 600 | |
| Geekbench Multi | 11047 | 1800 | |
| Display | 6.8" AMOLED | 6.8" IPS LCD | |
| Resolution | 1272x2772 | 720x1570 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6500 mAh | 8000 mAh | |
| Charging | 120W | 45W | |
| Wireless charging | 50W | — | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 5 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB | |
| Storage | 256GB / 512GB | 64GB / 128GB / 256GB | |
| OS | Android 16, OxygenOS 16 (Global), ColorOS 16 (China) | Android 16 | |
| Brightness (peak) | 1800 nits | 900 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP64 | |
| Dimensions | 161.4×76.7×8.1 mm | — | |
| Weight | 213 g | 219 g | |
| Launch price | $799 | $175 |
Camera comparison
OnePlus 15
- Main: 50MP f/1.8
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Realme C100x
- Main: 50MP f/1.8
- Front: 5MP
Display comparison
OnePlus 15
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 120 Hz
Realme C100x
- 6.8" IPS LCD
- Resolution: 720x1570
- Refresh rate: 120 Hz
Battery and charging
OnePlus 15
- 6500 mAh
- Wired: 120W
- Wireless: 50W
Realme C100x
- 8000 mAh
- Wired: 45W
- Wireless charging: no data
Benchmarks
Launch prices and where to check today's
Launch price difference: $624. Realme C100x was $624 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the OnePlus 15 significantly outperforms the Realme C100x (97/100 vs 32/100).
display
In the "display" category, the OnePlus 15 notably outperforms the Realme C100x (84/100 vs 55/100).
camera
In the "camera" category, the OnePlus 15 significantly outperforms the Realme C100x (78/100 vs 30/100).
battery
In the "battery" category, the OnePlus 15 is a bit better (89/100 vs 75/100).
portability
In the "portability" category, the OnePlus 15 is a bit better (50/100 vs 40/100).
Frequently asked questions
Which is better: the OnePlus 15 or the Realme C100x?
The OnePlus 15 significantly outperforms the Realme C100x by 44 points (86/100 vs 42/100).
What is the rating of the OnePlus 15 and the Realme C100x?
The OnePlus 15 has a MobileRank rating of 86/100, the Realme C100x — 42/100.
Which has the better camera: the OnePlus 15 or the Realme C100x?
The OnePlus 15 leads on camera score (78/100 vs 30/100).
Which is more powerful: the OnePlus 15 or the Realme C100x?
The OnePlus 15 leads on performance (97/100 vs 32/100).
Should you choose the OnePlus 15 over the Realme C100x?
The OnePlus 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Realme C100x is a better fit for those who care about battery life.