Realme U1 vs Vivo iQOO 15
The Realme U1 (2018) runs on the MediaTek Helio P70, 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 26/100 (a 60-point difference). Key differences: the Vivo iQOO 15 has the bigger battery (7000 mAh vs 3500); the main camera is 13 MP vs 50 MP; the Vivo iQOO 15 is faster in AnTuTu (3,714,661 vs 303,398); the Vivo iQOO 15 has NFC for contactless payments, the Realme U1 doesn't; the Realme U1 is noticeably lighter (168g vs 215g).
Realme U1
Vivo iQOO 15
- Lighter: 168g vs 215g
- Better portability (79/100 vs 48/100)
- Higher AnTuTu: 3714661 vs 303398
- Better Geekbench Single: 3041 vs 341
- Better Geekbench Multi: 9494 vs 779
- Bigger battery: 7000 vs 3500 mAh
- Faster charging: 100W vs 10W
- Better main camera: 50MP vs 13MP
- Higher performance (94/100 vs 20/100)
- Better camera (78/100 vs 16/100)
- Longer battery life (85/100 vs 12/100)
- Better display (99/100 vs 58/100)
Comparing the Realme U1 vs the Vivo iQOO 15, the Vivo iQOO 15 scores 60 points higher (86/100 vs 26/100). In the "performance" category, the Vivo iQOO 15 leads (94/100 vs 20/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 16/100). In the "battery" category, the Vivo iQOO 15 leads (85/100 vs 12/100). In the "performance" category, the Vivo iQOO 15 significantly outperforms the Realme U1 (94/100 vs 20/100). In the "display" category, the Vivo iQOO 15 significantly outperforms the Realme U1 (99/100 vs 58/100). In the "camera" category, the Vivo iQOO 15 significantly outperforms the Realme U1 (78/100 vs 16/100). In the "battery" category, the Vivo iQOO 15 significantly outperforms the Realme U1 (85/100 vs 12/100). In the "portability" category, the Realme U1 significantly outperforms the Vivo iQOO 15 (79/100 vs 48/100).
| Specification | Realme U1 | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | MediaTek Helio P70 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 303398 | 3714661 | |
| Geekbench Single | 341 | 3041 | |
| Geekbench Multi | 779 | 9494 | |
| Display | 6.3" LTPS IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 1080x2340 | 1440x3168 | |
| Refresh rate | — | 144 Hz | |
| Battery | 3500 mAh | 7000 mAh | |
| Charging | 10W | 100W | |
| Wireless charging | 0W | 40W | |
| Main camera | 13 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 25 MP | 32 MP | |
| RAM | 3GB / 4GB | 12GB / 16GB | |
| Storage | 32GB / 64GB | 256GB / 512GB / 1TB | |
| OS | Android 8.1 (Oreo); ColorOS 5.2 | Android 16 | |
| Brightness (peak) | — | 6000 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 157.0×74.0×8.0 mm | 163.7×76.8×8.1 mm | |
| Weight | 168 g | 215 g | |
| Launch price | — | $599 |
Realme U1
- Main: 13MP f/f/2.2
- Front: 25MP
Vivo iQOO 15
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Realme U1
- 6.3" LTPS IPS LCD
- Resolution: 1080x2340
- Refresh rate: —
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Realme U1
- 3500 mAh
- Wired: 10W
- No wireless charging
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
We compared Realme U1 and Vivo iQOO 15, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Realme U1 by 91.8% in our overall performance rating.
Realme U1
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 significantly outperforms the Realme U1 (94/100 vs 20/100).
display
In the "display" category, the Vivo iQOO 15 significantly outperforms the Realme U1 (99/100 vs 58/100).
camera
In the "camera" category, the Vivo iQOO 15 significantly outperforms the Realme U1 (78/100 vs 16/100).
battery
In the "battery" category, the Vivo iQOO 15 significantly outperforms the Realme U1 (85/100 vs 12/100).
portability
In the "portability" category, the Realme U1 significantly outperforms the Vivo iQOO 15 (79/100 vs 48/100).
Which is better: the Realme U1 or the Vivo iQOO 15?
The Vivo iQOO 15 significantly outperforms the Realme U1 by 60 points (86/100 vs 26/100).
What is the rating of the Realme U1 and the Vivo iQOO 15?
The Realme U1 has a MobileRank rating of 26/100, the Vivo iQOO 15 — 86/100.
Which has the better camera: the Realme U1 or the Vivo iQOO 15?
The Vivo iQOO 15 leads on camera score (78/100 vs 16/100).
Which is more powerful: the Realme U1 or the Vivo iQOO 15?
The Vivo iQOO 15 leads on performance (94/100 vs 20/100).
Should you choose the Realme U1 over the Vivo iQOO 15?
The Realme U1 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.