Vivo iQOO 15 Ultra vs Vivo Y51
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo Y51 (2020) runs on the Qualcomm Snapdragon 665. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 84/100 vs 18/100 (a 66-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 5000); the main camera is 50 MP vs 48 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 329,457); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Vivo Y51 doesn't; the Vivo Y51 is noticeably lighter (186g vs 227g).
Vivo iQOO 15 Ultra
Vivo Y51
- Higher AnTuTu: 4602290 vs 329457
- Better Geekbench Single: 3640 vs 321
- Better Geekbench Multi: 11033 vs 1128
- Bigger battery: 7400 vs 5000 mAh
- Faster charging: 120W vs 18W
- Better main camera: 50MP vs 48MP
- Higher performance (97/100 vs 0/100)
- Better camera (74/100 vs 29/100)
- Longer battery life (86/100 vs 36/100)
- Better display (100/100 vs 0/100)
- Lighter: 186g vs 227g
- Better design/ergonomics (67/100 vs 16/100)
Comparing the Vivo iQOO 15 Ultra vs the Vivo Y51, the Vivo iQOO 15 Ultra scores 66 points higher (84/100 vs 18/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (97/100 vs 0/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (74/100 vs 29/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (86/100 vs 36/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y51 (97/100 vs 0/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y51 (100/100 vs 0/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y51 (74/100 vs 29/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y51 (86/100 vs 36/100). In the "design" category, the Vivo Y51 significantly outperforms the Vivo iQOO 15 Ultra (67/100 vs 16/100). In the "value for money" category, both devices are on the same level — 55/100.
| Specification | Vivo iQOO 15 Ultra | Vivo Y51 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 665 | |
| AnTuTu | 4602290 | 329457 | |
| Geekbench Single | 3640 | 321 | |
| Geekbench Multi | 11033 | 1128 | |
| Display | 6.8" LTPO AMOLED | 6.4" Super AMOLED | |
| Resolution | 1440x3168 | 1080x2340 | |
| Refresh rate | 144 Hz | — | |
| Battery | 7400 mAh | 5000 mAh | |
| Charging | 120W | 18W | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 16 MP | |
| RAM | 12GB / 16GB / 24GB | 8GB | |
| Storage | 256GB / 512GB / 1TB | 128GB | |
| OS | Android 16 | Android 10, Funtouch 10 | |
| Brightness (peak) | 8000 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 163.7×76.8×8.7 mm | 159.3×75.2×8.7 mm | |
| Weight | 227 g | 186 g | |
| Price | $799 | — |
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo Y51
- Main: 48MP f/f/1.8
- Ultrawide: 8MP
- Front: 16MP
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo Y51
- 6.4" Super AMOLED
- Resolution: 1080x2340
- Refresh rate: —
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Vivo Y51
- 5000 mAh
- Wired: 18W
- No wireless charging
We compared Vivo iQOO 15 Ultra and Vivo Y51, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Vivo Y51 by 1296.9% in our overall performance rating.
Vivo Y51
Price unknownperformance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y51 (97/100 vs 0/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y51 (100/100 vs 0/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y51 (74/100 vs 29/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y51 (86/100 vs 36/100).
design
In the "design" category, the Vivo Y51 significantly outperforms the Vivo iQOO 15 Ultra (67/100 vs 16/100).
value for money
In the "value for money" category, both devices are on the same level — 55/100.
Which is better: the Vivo iQOO 15 Ultra or the Vivo Y51?
The Vivo iQOO 15 Ultra significantly outperforms the Vivo Y51 by 66 points (84/100 vs 18/100).
What is the rating of the Vivo iQOO 15 Ultra and the Vivo Y51?
The Vivo iQOO 15 Ultra has a MobileRank rating of 84/100, the Vivo Y51 — 18/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Vivo Y51?
The Vivo iQOO 15 Ultra leads on camera score (74/100 vs 29/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Vivo Y51?
The Vivo iQOO 15 Ultra leads on performance (97/100 vs 0/100).
Should you choose the Vivo iQOO 15 Ultra over the Vivo Y51?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life. The Vivo Y51 is a better fit for everyday use.