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 (3,758,268 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).
Profile comparison
Category scores
Realme U1
Vivo iQOO 15
What makes Realme U1 better?
- Lighter: 168g vs 215g
- Better portability (79/100 vs 48/100)
What makes Vivo iQOO 15 better?
- Higher AnTuTu: 3758268 vs 303398
- Better Geekbench Single: 3013 vs 341
- Better Geekbench Multi: 9287 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)
Comparison verdict
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).
Specs comparison
| Specification | Realme U1 | Vivo iQOO 15 | |
|---|---|---|---|
| Processor | MediaTek Helio P70 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 303398 | 3758268 | |
| Geekbench Single | 341 | 3013 | |
| Geekbench Multi | 779 | 9287 | |
| 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 |
Camera comparison
Realme U1
- Main: 13MP f/2.2
- Front: 25MP
Vivo iQOO 15
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Display comparison
Realme U1
- 6.3" LTPS IPS LCD
- Resolution: 1080x2340
- Refresh rate: —
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Battery and charging
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
Overall performance score
We compared Realme U1 and Vivo iQOO 15, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Realme U1 by 91.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Realme U1
Price unknownDetailed category analysis
performance
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).
Frequently asked questions
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 Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.