Realme GT 8 vs Vivo X21i
The Realme GT 8 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo X21i (2018) runs on the MediaTek Helio P60. By overall MobileRank rating, the Realme GT 8 leads — 80/100 vs 29/100 (a 51-point difference). Key differences: the Realme GT 8 has the bigger battery (7000 mAh vs 3425); the main camera is 50 MP vs 12 MP; the Realme GT 8 is faster in AnTuTu (3,119,308 vs 232,802); the Vivo X21i is noticeably lighter (159g vs 209g).
Realme GT 8
Vivo X21i
- Higher AnTuTu: 3119308 vs 232802
- Better Geekbench Single: 3041 vs 341
- Better Geekbench Multi: 9494 vs 779
- Bigger battery: 7000 vs 3425 mAh
- Better main camera: 50MP vs 12MP
- Higher performance (92/100 vs 17/100)
- Better camera (56/100 vs 15/100)
- Longer battery life (85/100 vs 15/100)
- Better display (98/100 vs 82/100)
- Lighter: 159g vs 209g
- Better portability (94/100 vs 50/100)
Comparing the Realme GT 8 vs the Vivo X21i, the Realme GT 8 scores 51 points higher (80/100 vs 29/100). In the "performance" category, the Realme GT 8 leads (92/100 vs 17/100). In the "camera" category, the Realme GT 8 leads (56/100 vs 15/100). In the "battery" category, the Realme GT 8 leads (85/100 vs 15/100). In the "performance" category, the Realme GT 8 significantly outperforms the Vivo X21i (92/100 vs 17/100). In the "display" category, the Realme GT 8 notably outperforms the Vivo X21i (98/100 vs 82/100). In the "camera" category, the Realme GT 8 significantly outperforms the Vivo X21i (56/100 vs 15/100). In the "battery" category, the Realme GT 8 significantly outperforms the Vivo X21i (85/100 vs 15/100). In the "portability" category, the Vivo X21i significantly outperforms the Realme GT 8 (94/100 vs 50/100).
| Specification | Realme GT 8 | Vivo X21i | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Helio P60 | |
| AnTuTu | 3119308 | 232802 | |
| Geekbench Single | 3041 | 341 | |
| Geekbench Multi | 9494 | 779 | |
| Display | 6.8" AMOLED | 6.3" Super AMOLED | |
| Resolution | 1440x3136 | 1080x2280 | |
| Refresh rate | 144 Hz | — | |
| Battery | 7000 mAh | 3425 mAh | |
| Charging | 100W | — | |
| Main camera | 50 MP | 12 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 16 MP | 24 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB | |
| Storage | 256GB / 512GB / 1TB | 64GB / 128GB | |
| OS | Android 16 | Android 8.1 (Oreo); Funtouch 4 | |
| NFC | — | no | |
| Dimensions | — | 154.4×75.0×7.0 mm | |
| Weight | 209 g | 159 g | |
| Launch price | $350 | — |
Realme GT 8
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 16MP
Vivo X21i
- Main: 12MP f/f/1.8
- Front: 24MP
Realme GT 8
- 6.8" AMOLED
- Resolution: 1440x3136
- Refresh rate: 144 Hz
Vivo X21i
- 6.3" Super AMOLED
- Resolution: 1080x2280
- Refresh rate: —
Realme GT 8
- 7000 mAh
- Wired: 100W
- Wireless charging: no data
Vivo X21i
- 3425 mAh
- Wireless charging: no data
We compared Realme GT 8 and Vivo X21i, covering their specs and all relevant benchmarks.
Realme GT 8 leads Vivo X21i by 1239.9% in our overall performance rating.
Vivo X21i
Price unknownperformance
In the "performance" category, the Realme GT 8 significantly outperforms the Vivo X21i (92/100 vs 17/100).
display
In the "display" category, the Realme GT 8 notably outperforms the Vivo X21i (98/100 vs 82/100).
camera
In the "camera" category, the Realme GT 8 significantly outperforms the Vivo X21i (56/100 vs 15/100).
battery
In the "battery" category, the Realme GT 8 significantly outperforms the Vivo X21i (85/100 vs 15/100).
portability
In the "portability" category, the Vivo X21i significantly outperforms the Realme GT 8 (94/100 vs 50/100).
Which is better: the Realme GT 8 or the Vivo X21i?
The Realme GT 8 significantly outperforms the Vivo X21i by 51 points (80/100 vs 29/100).
What is the rating of the Realme GT 8 and the Vivo X21i?
The Realme GT 8 has a MobileRank rating of 80/100, the Vivo X21i — 29/100.
Which has the better camera: the Realme GT 8 or the Vivo X21i?
The Realme GT 8 leads on camera score (56/100 vs 15/100).
Which is more powerful: the Realme GT 8 or the Vivo X21i?
The Realme GT 8 leads on performance (92/100 vs 17/100).
Should you choose the Realme GT 8 over the Vivo X21i?
The Realme GT 8 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo X21i is a better fit for everyday use.