Realme C51s vs Vivo iQOO 15
The Realme C51s (2024) runs on the Unisoc Tiger T612, while the Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 32/100 (a 54-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 5000); the Realme C51s is noticeably lighter (182g vs 215g).
Realme C51s
Vivo iQOO 15
- Lighter: 182g vs 215g
- Better portability (75/100 vs 48/100)
- Better Geekbench Single: 3041 vs 360
- Better Geekbench Multi: 9494 vs 1250
- Bigger battery: 7000 vs 5000 mAh
- Faster charging: 100W vs 33W
- Higher refresh rate: 144Hz vs 90Hz
- Higher performance (94/100 vs 16/100)
- Longer battery life (85/100 vs 46/100)
- Better display (99/100 vs 43/100)
Comparing the Realme C51s vs the Vivo iQOO 15, the Vivo iQOO 15 scores 54 points higher (86/100 vs 32/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 16/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 46/100). In the "performance" category, the Vivo iQOO 15 significantly outperforms the Realme C51s (94/100 vs 16/100). In the "display" category, the Vivo iQOO 15 significantly outperforms the Realme C51s (99/100 vs 43/100). In the "battery" category, the Vivo iQOO 15 significantly outperforms the Realme C51s (85/100 vs 46/100). In the "portability" category, the Realme C51s notably outperforms the Vivo iQOO 15 (75/100 vs 48/100).
| Specification | Realme C51s | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | Unisoc Tiger T612 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | — | 3740528 | |
| Geekbench Single | 360 | 3041 | |
| Geekbench Multi | 1250 | 9494 | |
| Display | 6.7" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 720x1600 | 1440x3168 | |
| Refresh rate | 90 Hz | 144 Hz | |
| Battery | 5000 mAh | 7000 mAh | |
| Charging | 33W | 100W | |
| Wireless charging | 0W | 40W | |
| Main camera | — | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 5 MP | 32 MP | |
| RAM | 6GB | 12GB / 16GB | |
| Storage | 128GB | 256GB / 512GB / 1TB | |
| OS | Android 13, Realme UI | Android 16 | |
| Brightness (peak) | 560 nits | 6000 nits | |
| NFC | yes | yes | |
| Protection | IP54 | IP68 | |
| Dimensions | 167.2×76.7×7.5 mm | 163.7×76.8×8.1 mm | |
| Weight | 182 g | 215 g | |
| Launch price | — | $599 |
Realme C51s
- Main: —
- Front: 5MP
Vivo iQOO 15
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Realme C51s
- 6.7" IPS LCD
- Resolution: 720x1600
- Refresh rate: 90 Hz
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Realme C51s
- 5000 mAh
- Wired: 33W
- No wireless charging
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
Realme C51s
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Realme C51s (94/100 vs 16/100).
display
In the "display" category, the Vivo iQOO 15 significantly outperforms the Realme C51s (99/100 vs 43/100).
battery
In the "battery" category, the Vivo iQOO 15 significantly outperforms the Realme C51s (85/100 vs 46/100).
portability
In the "portability" category, the Realme C51s notably outperforms the Vivo iQOO 15 (75/100 vs 48/100).
Which is better: the Realme C51s or the Vivo iQOO 15?
The Vivo iQOO 15 significantly outperforms the Realme C51s by 54 points (86/100 vs 32/100).
What is the rating of the Realme C51s and the Vivo iQOO 15?
The Realme C51s has a MobileRank rating of 32/100, the Vivo iQOO 15 — 86/100.
Which is more powerful: the Realme C51s or the Vivo iQOO 15?
The Vivo iQOO 15 leads on performance (94/100 vs 16/100).
Should you choose the Realme C51s over the Vivo iQOO 15?
The Realme C51s is a better fit for everyday use. The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.