Realme V21 vs Xiaomi Black Shark GS3 Ultra
Comparing the Realme V21 (2022) and the Xiaomi Black Shark GS3 Ultra (2025) on specs and benchmarks. By overall MobileRank rating, the Realme V21 leads — 10/100 vs 5/100 (a 5-point difference).
Realme V21
Xiaomi Black Shark GS3 Ultra
- Longer battery life (36/100 vs 0/100)
- Overall rating 5/100
Comparing the Realme V21 vs the Xiaomi Black Shark GS3 Ultra, the Realme V21 scores 5 points higher (10/100 vs 5/100). In the "battery" category, the Realme V21 leads (36/100 vs 0/100). In the "performance" category, both devices are on the same level — 0/100. In the "display" category, both devices are on the same level — 0/100. In the "camera" category, both devices are on the same level — 0/100. In the "battery" category, the Realme V21 significantly outperforms the Xiaomi Black Shark GS3 Ultra (36/100 vs 0/100). In the "design" category, both devices are on the same level — 50/100. In the "value for money" category, both devices are on the same level — 55/100.
| Specification | Realme V21 | Xiaomi Black Shark GS3 Ultra | |
|---|---|---|---|
| Processor | — | — | |
| AnTuTu | — | — | |
| Geekbench Single | — | — | |
| Geekbench Multi | — | — | |
| Display | 6.6" TFT | 1.4" AMOLED | |
| Resolution | 720x1612 | 466x466 | |
| Refresh rate | — | — | |
| Battery | 5000 mAh | — | |
| Charging | — | — | |
| Main camera | 13 MP | — | |
| Front camera | 8 MP | — | |
| RAM | 4GB / 6GB / 8GB | — | |
| Storage | 128GB | — | |
| OS | Android 12, Realme UI 3.0 | — | |
| Brightness (peak) | — | 1000 nits | |
| NFC | no | no | |
| Protection | — | IP68 | |
| Weight | — | — | |
| Price | — | — |
Realme V21
- Main: 13MP f/f/2.2
- Front: 8MP
Xiaomi Black Shark GS3 Ultra
- Main: —
- Front: —
Realme V21
- 6.6" TFT
- Resolution: 720x1612
- Refresh rate: —
Xiaomi Black Shark GS3 Ultra
- 1.4" AMOLED
- Resolution: 466x466
- Refresh rate: —
Realme V21
- 5000 mAh
- No wireless charging
Xiaomi Black Shark GS3 Ultra
- —
- No wireless charging
performance
In the "performance" category, both devices are on the same level — 0/100.
display
In the "display" category, both devices are on the same level — 0/100.
camera
In the "camera" category, both devices are on the same level — 0/100.
battery
In the "battery" category, the Realme V21 significantly outperforms the Xiaomi Black Shark GS3 Ultra (36/100 vs 0/100).
design
In the "design" category, both devices are on the same level — 50/100.
value for money
In the "value for money" category, both devices are on the same level — 55/100.
Which is better: the Realme V21 or the Xiaomi Black Shark GS3 Ultra?
The Realme V21 edges out the Xiaomi Black Shark GS3 Ultra by just 5 points — the two devices are very close in overall level.
What is the rating of the Realme V21 and the Xiaomi Black Shark GS3 Ultra?
The Realme V21 has a MobileRank rating of 10/100, the Xiaomi Black Shark GS3 Ultra — 5/100.
Should you choose the Realme V21 over the Xiaomi Black Shark GS3 Ultra?
The Realme V21 is a better fit for everyday use. The Xiaomi Black Shark GS3 Ultra is a better fit for everyday use.