Realme U1 vs Vivo iQOO 15 Ultra
The Realme U1 (2018) runs on the MediaTek Helio P70, 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 26/100 (a 63-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 3500); the main camera is 13 MP vs 50 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 303,398); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Realme U1 doesn't; the Realme U1 is noticeably lighter (168g vs 227g).
Profile comparison
Category scores
Realme U1
Vivo iQOO 15 Ultra
What makes Realme U1 better?
- Lighter: 168g vs 227g
- Better portability (79/100 vs 35/100)
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 303398
- Better Geekbench Single: 3639 vs 341
- Better Geekbench Multi: 11047 vs 779
- Bigger battery: 7400 vs 3500 mAh
- Faster charging: 120W vs 10W
- Better main camera: 50MP vs 13MP
- Higher performance (99/100 vs 20/100)
- Better camera (78/100 vs 16/100)
- Longer battery life (92/100 vs 12/100)
- Better display (99/100 vs 58/100)
Comparison verdict
Comparing the Realme U1 vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 63 points higher (89/100 vs 26/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 20/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 16/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 12/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme U1 (99/100 vs 20/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme U1 (99/100 vs 58/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme U1 (78/100 vs 16/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme U1 (92/100 vs 12/100). In the "portability" category, the Realme U1 significantly outperforms the Vivo iQOO 15 Ultra (79/100 vs 35/100).
Specs comparison
| Specification | Realme U1 | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Helio P70 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 303398 | 4602290 | |
| Geekbench Single | 341 | 3639 | |
| Geekbench Multi | 779 | 11047 | |
| Display | 6.3" LTPS IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 1080x2340 | 1440x3168 | |
| Refresh rate | — | 144 Hz | |
| Battery | 3500 mAh | 7400 mAh | |
| Charging | 10W | 120W | |
| Wireless charging | 0W | 50W | |
| 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 / 24GB | |
| Storage | 32GB / 64GB | 256GB / 512GB / 1TB | |
| OS | Android 8.1 (Oreo); ColorOS 5.2 | Android 16 | |
| Brightness (peak) | — | 8000 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 157.0×74.0×8.0 mm | 163.7×76.8×8.7 mm | |
| Weight | 168 g | 227 g | |
| Launch price | — | $799 |
Camera comparison
Realme U1
- Main: 13MP f/2.2
- Front: 25MP
Vivo iQOO 15 Ultra
- 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 Ultra
- 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 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Overall performance score
We compared Realme U1 and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Realme U1 by 93.4% 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 Ultra significantly outperforms the Realme U1 (99/100 vs 20/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme U1 (99/100 vs 58/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme U1 (78/100 vs 16/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme U1 (92/100 vs 12/100).
portability
In the "portability" category, the Realme U1 significantly outperforms the Vivo iQOO 15 Ultra (79/100 vs 35/100).
Frequently asked questions
Which is better: the Realme U1 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Realme U1 by 63 points (89/100 vs 26/100).
What is the rating of the Realme U1 and the Vivo iQOO 15 Ultra?
The Realme U1 has a MobileRank rating of 26/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Realme U1 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 16/100).
Which is more powerful: the Realme U1 or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 20/100).
Should you choose the Realme U1 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.