Realme GT 8 vs Vivo Y21
The Realme GT 8 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo Y21 (2026) runs on the MediaTek Dimensity 6300; launch prices were $350 and $178. By overall MobileRank rating, the Realme GT 8 leads — 80/100 vs 44/100 (a 36-point difference). Key differences: the Realme GT 8 has the bigger battery (7000 mAh vs 6500); the Realme GT 8 is faster in AnTuTu (3,119,308 vs 524,785).
Realme GT 8
Vivo Y21
- Higher AnTuTu: 3119308 vs 524785
- Better Geekbench Single: 3041 vs 771
- Better Geekbench Multi: 9494 vs 1980
- Bigger battery: 7000 vs 6500 mAh
- Faster charging: 100W vs 44W
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (92/100 vs 43/100)
- Better camera (56/100 vs 30/100)
- Longer battery life (85/100 vs 58/100)
- Better display (98/100 vs 55/100)
- Better portability (50/100 vs 49/100)
- Cheaper at launch: $178 vs $350
- Overall rating 44/100
Comparing the Realme GT 8 vs the Vivo Y21, the Realme GT 8 scores 36 points higher (80/100 vs 44/100). In the "performance" category, the Realme GT 8 leads (92/100 vs 43/100). In the "camera" category, the Realme GT 8 leads (56/100 vs 30/100). In the "battery" category, the Realme GT 8 leads (85/100 vs 58/100). Value score: Realme GT 8 — 100/100, Vivo Y21 — 56/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Realme GT 8 significantly outperforms the Vivo Y21 (92/100 vs 43/100). In the "display" category, the Realme GT 8 significantly outperforms the Vivo Y21 (98/100 vs 55/100). In the "camera" category, the Realme GT 8 notably outperforms the Vivo Y21 (56/100 vs 30/100). In the "battery" category, the Realme GT 8 notably outperforms the Vivo Y21 (85/100 vs 58/100). In the "portability" category, the Realme GT 8 and the Vivo Y21 are nearly equal (50/100 vs 49/100).
| Specification | Realme GT 8 | Vivo Y21 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 6300 | |
| AnTuTu | 3119308 | 524785 | |
| Geekbench Single | 3041 | 771 | |
| Geekbench Multi | 9494 | 1980 | |
| Display | 6.8" AMOLED | 6.7" IPS LCD | |
| Resolution | 1440x3136 | 720x1600 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7000 mAh | 6500 mAh | |
| Charging | 100W | 44W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 16 MP | 5 MP | |
| RAM | 12GB / 16GB | 4GB / 6GB / 8GB | |
| Storage | 256GB / 512GB / 1TB | 128GB | |
| OS | Android 16 | Android 16, OriginOS 6 | |
| Brightness (peak) | — | 1200 nits | |
| NFC | — | yes | |
| Protection | — | IP65 | |
| Dimensions | — | 167.4×77.1×8.4 mm | |
| Weight | 209 g | 209 g | |
| Launch price | $350 | $178 |
Realme GT 8
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 16MP
Vivo Y21
- Main: 50MP f/f/1.8
- Front: 5MP
Realme GT 8
- 6.8" AMOLED
- Resolution: 1440x3136
- Refresh rate: 144 Hz
Vivo Y21
- 6.7" IPS LCD
- Resolution: 720x1600
- Refresh rate: 120 Hz
Realme GT 8
- 7000 mAh
- Wired: 100W
- Wireless charging: no data
Vivo Y21
- 6500 mAh
- Wired: 44W
- No wireless charging
We compared Realme GT 8 and Vivo Y21, covering their specs and all relevant benchmarks.
Realme GT 8 leads Vivo Y21 by 494.4% in our overall performance rating.
Launch price difference: $172. Vivo Y21 was $172 cheaper at launch.
performance
In the "performance" category, the Realme GT 8 significantly outperforms the Vivo Y21 (92/100 vs 43/100).
display
In the "display" category, the Realme GT 8 significantly outperforms the Vivo Y21 (98/100 vs 55/100).
camera
In the "camera" category, the Realme GT 8 notably outperforms the Vivo Y21 (56/100 vs 30/100).
battery
In the "battery" category, the Realme GT 8 notably outperforms the Vivo Y21 (85/100 vs 58/100).
portability
In the "portability" category, the Realme GT 8 and the Vivo Y21 are nearly equal (50/100 vs 49/100).
Which is better: the Realme GT 8 or the Vivo Y21?
The Realme GT 8 significantly outperforms the Vivo Y21 by 36 points (80/100 vs 44/100).
What is the rating of the Realme GT 8 and the Vivo Y21?
The Realme GT 8 has a MobileRank rating of 80/100, the Vivo Y21 — 44/100.
Which has the better camera: the Realme GT 8 or the Vivo Y21?
The Realme GT 8 leads on camera score (56/100 vs 30/100).
Which is more powerful: the Realme GT 8 or the Vivo Y21?
The Realme GT 8 leads on performance (92/100 vs 43/100).
Should you choose the Realme GT 8 over the Vivo Y21?
The Realme GT 8 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo Y21 is a better fit for everyday use.