Karbonn Rebel vs Vivo iQOO 15 Ultra
The Karbonn Rebel (2026) runs on the MediaTek Helio G81, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 37/100 (a 52-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 7000); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 358,608).
Profile comparison
Category scores
Karbonn Rebel
Vivo iQOO 15 Ultra
What makes Karbonn Rebel better?
- Overall rating 37/100
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 358608
- Better Geekbench Single: 3639 vs 432
- Better Geekbench Multi: 11047 vs 1416
- Bigger battery: 7400 vs 7000 mAh
- Faster charging: 120W vs 18W
- Higher refresh rate: 144Hz vs 90Hz
- Higher performance (99/100 vs 30/100)
- Better camera (78/100 vs 31/100)
- Longer battery life (92/100 vs 55/100)
- Better display (99/100 vs 48/100)
Comparison verdict
Comparing the Karbonn Rebel vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 52 points higher (89/100 vs 37/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 30/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 31/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 55/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Karbonn Rebel (99/100 vs 30/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Karbonn Rebel (99/100 vs 48/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Karbonn Rebel (78/100 vs 31/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Karbonn Rebel (92/100 vs 55/100).
Specs comparison
| Specification | Karbonn Rebel | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio G81 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 358608 | 4602290 | |
| Geekbench Single | 432 | 3639 | |
| Geekbench Multi | 1416 | 11047 | |
| Display | 6.8" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | — | 1440x3168 | |
| Refresh rate | 90 Hz | 144 Hz | |
| Battery | 7000 mAh | 7400 mAh | |
| Charging | 18W | 120W | |
| Wireless charging | 0W | 50W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | — | 32 MP | |
| RAM | 4GB / 6GB | 12GB / 16GB / 24GB | |
| Storage | 64GB / 128GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | — | 8000 nits | |
| NFC | — | yes | |
| Protection | IP64 | IP68 | |
| Dimensions | — | 163.7×76.8×8.7 mm | |
| Weight | — | 227 g | |
| Launch price | — | $799 |
Camera comparison
Karbonn Rebel
- Main: 50MP f/1.8
- Front: —
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Karbonn Rebel
- 6.8" IPS LCD
- Refresh rate: 90 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
Karbonn Rebel
- 7000 mAh
- Wired: 18W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Overall performance score
We compared Karbonn Rebel and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Karbonn Rebel by 92.2% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Karbonn Rebel
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Karbonn Rebel (99/100 vs 30/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Karbonn Rebel (99/100 vs 48/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Karbonn Rebel (78/100 vs 31/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Karbonn Rebel (92/100 vs 55/100).
Frequently asked questions
Which is better: the Karbonn Rebel or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Karbonn Rebel by 52 points (89/100 vs 37/100).
What is the rating of the Karbonn Rebel and the Vivo iQOO 15 Ultra?
The Karbonn Rebel has a MobileRank rating of 37/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Karbonn Rebel or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 31/100).
Which is more powerful: the Karbonn Rebel or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 30/100).
Should you choose the Karbonn Rebel over the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.