Vivo iQOO 15 Ultra vs Vivo Y21G
The Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Vivo Y21G (2022) runs on the MediaTek Helio G70. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 29/100 (a 60-point difference). Key differences: the Vivo iQOO 15 Ultra has the bigger battery (7400 mAh vs 5000); the main camera is 50 MP vs 13 MP; the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 317,084); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Vivo Y21G doesn't; the Vivo Y21G is noticeably lighter (182g vs 227g).
Profile comparison
Category scores
Vivo iQOO 15 Ultra
Vivo Y21G
What makes Vivo iQOO 15 Ultra better?
- Higher AnTuTu: 4602290 vs 317084
- Better Geekbench Single: 3639 vs 417
- Better Geekbench Multi: 11047 vs 1345
- Bigger battery: 7400 vs 5000 mAh
- Faster charging: 120W vs 18W
- Better main camera: 50MP vs 13MP
- Higher performance (99/100 vs 27/100)
- Better camera (78/100 vs 10/100)
- Longer battery life (92/100 vs 43/100)
- Better display (99/100 vs 39/100)
What makes Vivo Y21G better?
- Lighter: 182g vs 227g
- Better portability (70/100 vs 35/100)
Comparison verdict
Comparing the Vivo iQOO 15 Ultra vs the Vivo Y21G, the Vivo iQOO 15 Ultra scores 60 points higher (89/100 vs 29/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 27/100). 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 43/100). In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y21G (99/100 vs 27/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y21G (99/100 vs 39/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y21G (78/100 vs 10/100). In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y21G (92/100 vs 43/100). In the "portability" category, the Vivo Y21G significantly outperforms the Vivo iQOO 15 Ultra (70/100 vs 35/100).
Specs comparison
| Specification | Vivo iQOO 15 Ultra | Vivo Y21G | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | MediaTek Helio G70 | |
| AnTuTu | 4602290 | 317084 | |
| Geekbench Single | 3639 | 417 | |
| Geekbench Multi | 11047 | 1345 | |
| Display | 6.8" LTPO AMOLED | 6.5" IPS LCD | |
| Resolution | 1440x3168 | 720x1600 | |
| Refresh rate | 144 Hz | — | |
| Battery | 7400 mAh | 5000 mAh | |
| Charging | 120W | 18W | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 13 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 8 MP | |
| RAM | 12GB / 16GB / 24GB | 4GB | |
| Storage | 256GB / 512GB / 1TB | 64GB | |
| OS | Android 16 | Android 11, Funtouch 11.1 | |
| Brightness (peak) | 8000 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 163.7×76.8×8.7 mm | 164.3×76.1×8.0 mm | |
| Weight | 227 g | 182 g | |
| Launch price | $799 | — |
Camera comparison
Vivo iQOO 15 Ultra
- Main: 50MP f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo Y21G
- Main: 13MP f/2.2
- Front: 8MP
Display comparison
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo Y21G
- 6.5" IPS LCD
- Resolution: 720x1600
- Refresh rate: —
Battery and charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
Vivo Y21G
- 5000 mAh
- Wired: 18W
- No wireless charging
Overall performance score
We compared Vivo iQOO 15 Ultra and Vivo Y21G, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Vivo Y21G by 1351.4% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo Y21G
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y21G (99/100 vs 27/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y21G (99/100 vs 39/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y21G (78/100 vs 10/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra significantly outperforms the Vivo Y21G (92/100 vs 43/100).
portability
In the "portability" category, the Vivo Y21G significantly outperforms the Vivo iQOO 15 Ultra (70/100 vs 35/100).
Frequently asked questions
Which is better: the Vivo iQOO 15 Ultra or the Vivo Y21G?
The Vivo iQOO 15 Ultra significantly outperforms the Vivo Y21G by 60 points (89/100 vs 29/100).
What is the rating of the Vivo iQOO 15 Ultra and the Vivo Y21G?
The Vivo iQOO 15 Ultra has a MobileRank rating of 89/100, the Vivo Y21G — 29/100.
Which has the better camera: the Vivo iQOO 15 Ultra or the Vivo Y21G?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 10/100).
Which is more powerful: the Vivo iQOO 15 Ultra or the Vivo Y21G?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 27/100).
Should you choose the Vivo iQOO 15 Ultra over the Vivo Y21G?
The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.