Redmi 4 Prime vs Vivo iQOO 15 Ultra
The Redmi 4 Prime (2016) runs on the Qualcomm Snapdragon 625, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $150 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 22/100 (a 67-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 4100); the main camera is 13 MP vs 50 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 218,879); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Redmi 4 Prime doesn't; the Redmi 4 Prime is noticeably lighter (156g vs 227g).
Redmi 4 Prime
Vivo iQOO 15 Ultra
- Lighter: 156g vs 227g
- Cheaper at launch: $150 vs $799
- Better portability (74/100 vs 35/100)
- Higher AnTuTu: 4602290 vs 218879
- Better Geekbench Single: 3640 vs 189
- Better Geekbench Multi: 11033 vs 862
- Bigger battery: 7400 vs 4100 mAh
- Better main camera: 50MP vs 13MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (99/100 vs 14/100)
- Better camera (78/100 vs 10/100)
- Longer battery life (92/100 vs 35/100)
- Better display (99/100 vs 32/100)
Comparing the Redmi 4 Prime vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 67 points higher (89/100 vs 22/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 14/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 10/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 35/100). Value score: Redmi 4 Prime — 20/100, Vivo iQOO 15 Ultra — 90/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi 4 Prime (99/100 vs 14/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi 4 Prime (99/100 vs 32/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi 4 Prime (78/100 vs 10/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi 4 Prime (92/100 vs 35/100). In the "portability" category, the Redmi 4 Prime significantly outperforms the Vivo iQOO 15 Ultra (74/100 vs 35/100).
| Specification | Redmi 4 Prime | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 218879 | 4602290 | |
| Geekbench Single | 189 | 3640 | |
| Geekbench Multi | 862 | 11033 | |
| Display | 5.0" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | — | 1440x3168 | |
| Refresh rate | 60 Hz | 144 Hz | |
| Battery | 4100 mAh | 7400 mAh | |
| Charging | — | 120W | |
| Wireless charging | — | 50W | |
| Main camera | 13 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 5 MP | 32 MP | |
| RAM | 3GB | 12GB / 16GB / 24GB | |
| Storage | 32GB | 256GB / 512GB / 1TB | |
| OS | — | Android 16 | |
| Brightness (peak) | — | 8000 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 141.3×69.6×8.9 mm | 163.7×76.8×8.7 mm | |
| Weight | 156 g | 227 g | |
| Launch price | $150 | $799 |
Redmi 4 Prime
- Main: 13MP
- Front: 5MP
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Redmi 4 Prime
- 5.0" IPS LCD
- Refresh rate: 60 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Redmi 4 Prime
- 4100 mAh
- Wireless charging: no data
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
We compared Redmi 4 Prime and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Redmi 4 Prime by 95.2% in our overall performance rating.
Launch price difference: $649. Redmi 4 Prime was $649 cheaper at launch.
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi 4 Prime (99/100 vs 14/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi 4 Prime (99/100 vs 32/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi 4 Prime (78/100 vs 10/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Redmi 4 Prime (92/100 vs 35/100).
portability
In the "portability" category, the Redmi 4 Prime significantly outperforms the Vivo iQOO 15 Ultra (74/100 vs 35/100).
Which is better: the Redmi 4 Prime or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Redmi 4 Prime by 67 points (89/100 vs 22/100).
What is the rating of the Redmi 4 Prime and the Vivo iQOO 15 Ultra?
The Redmi 4 Prime has a MobileRank rating of 22/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Redmi 4 Prime or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 10/100).
Which is more powerful: the Redmi 4 Prime or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 14/100).
Should you choose the Redmi 4 Prime over the Vivo iQOO 15 Ultra?
The Redmi 4 Prime is a better fit for everyday use. The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.