Realme C100x vs Vivo iQOO 15
The Realme C100x (2026) runs on the Unisoc T7250, while the Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $175 and $599. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 42/100 (a 44-point difference). Key differences: the Realme C100x has the bigger battery (8000 mAh vs 7000).
Profile comparison
Category scores
Realme C100x
Vivo iQOO 15
What makes Realme C100x better?
- Bigger battery: 8000 vs 7000 mAh
- Cheaper at launch: $175 vs $599
- Overall rating 42/100
What makes Vivo iQOO 15 better?
- Better Geekbench Single: 3013 vs 600
- Better Geekbench Multi: 9287 vs 1800
- Faster charging: 100W vs 45W
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 215g vs 219g
- Higher performance (94/100 vs 32/100)
- Better camera (78/100 vs 30/100)
- Longer battery life (85/100 vs 75/100)
- Better display (99/100 vs 55/100)
- Better portability (48/100 vs 40/100)
Comparison verdict
Comparing the Realme C100x vs the Vivo iQOO 15, the Vivo iQOO 15 scores 44 points higher (86/100 vs 42/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 32/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 75/100). Value score: Realme C100x — 52/100, Vivo iQOO 15 — 86/100; 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 Vivo iQOO 15 significantly outperforms the Realme C100x (94/100 vs 32/100). In the "display" category, the Vivo iQOO 15 significantly outperforms the Realme C100x (99/100 vs 55/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Realme C100x (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 is a bit better (85/100 vs 75/100). In the "portability" category, the Vivo iQOO 15 is a bit better (48/100 vs 40/100).
Specs comparison
| Specification | Realme C100x | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | Unisoc T7250 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | — | 3758268 | |
| Geekbench Single | 600 | 3013 | |
| Geekbench Multi | 1800 | 9287 | |
| Display | 6.8" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 720x1570 | 1440x3168 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 8000 mAh | 7000 mAh | |
| Charging | 45W | 100W | |
| Wireless charging | — | 40W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 5 MP | 32 MP | |
| RAM | 4GB / 6GB | 12GB / 16GB | |
| Storage | 64GB / 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 900 nits | 6000 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68 | |
| Dimensions | — | 163.7×76.8×8.1 mm | |
| Weight | 219 g | 215 g | |
| Launch price | $175 | $599 |
Camera comparison
Realme C100x
- Main: 50MP f/1.8
- Front: 5MP
Vivo iQOO 15
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Realme C100x
- 6.8" IPS LCD
- Resolution: 720x1570
- Refresh rate: 120 Hz
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Realme C100x
- 8000 mAh
- Wired: 45W
- Wireless charging: no data
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
Benchmarks
Launch prices and where to check today's
Launch price difference: $424. Realme C100x was $424 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Realme C100x (94/100 vs 32/100).
display
In the "display" category, the Vivo iQOO 15 significantly outperforms the Realme C100x (99/100 vs 55/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Realme C100x (78/100 vs 30/100).
battery
In the "battery" category, the Vivo iQOO 15 is a bit better (85/100 vs 75/100).
portability
In the "portability" category, the Vivo iQOO 15 is a bit better (48/100 vs 40/100).
Frequently asked questions
Which is better: the Realme C100x or the Vivo iQOO 15?
The Vivo iQOO 15 significantly outperforms the Realme C100x by 44 points (86/100 vs 42/100).
What is the rating of the Realme C100x and the Vivo iQOO 15?
The Realme C100x has a MobileRank rating of 42/100, the Vivo iQOO 15 — 86/100.
Which has the better camera: the Realme C100x or the Vivo iQOO 15?
The Vivo iQOO 15 leads on camera score (78/100 vs 30/100).
Which is more powerful: the Realme C100x or the Vivo iQOO 15?
The Vivo iQOO 15 leads on performance (94/100 vs 32/100).
Should you choose the Realme C100x over the Vivo iQOO 15?
The Realme C100x is a better fit for those who care about battery life. The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.