Realme GT 8 vs Samsung Galaxy A21s
The Realme GT 8 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy A21s (2020) runs on the Exynos 850; launch prices were $350 and $215. 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 5000); the main camera is 50 MP vs 48 MP; the Realme GT 8 is faster in AnTuTu (3,119,308 vs 234,339); the Samsung Galaxy A21s is noticeably lighter (192g vs 209g).
Realme GT 8
Samsung Galaxy A21s
- Higher AnTuTu: 3119308 vs 234339
- Better Geekbench Single: 3041 vs 300
- Better Geekbench Multi: 9494 vs 836
- Bigger battery: 7000 vs 5000 mAh
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 144Hz vs 60Hz
- Higher performance (92/100 vs 16/100)
- Better camera (56/100 vs 30/100)
- Longer battery life (85/100 vs 52/100)
- Better display (98/100 vs 32/100)
- Lighter: 192g vs 209g
- Cheaper at launch: $215 vs $350
- Better portability (55/100 vs 50/100)
Comparing the Realme GT 8 vs the Samsung Galaxy A21s, 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 16/100). 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 52/100). Value score: Realme GT 8 — 100/100, Samsung Galaxy A21s — 18/100; 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 Samsung Galaxy A21s (92/100 vs 16/100). In the "display" category, the Realme GT 8 significantly outperforms the Samsung Galaxy A21s (98/100 vs 32/100). In the "camera" category, the Realme GT 8 notably outperforms the Samsung Galaxy A21s (56/100 vs 30/100). In the "battery" category, the Realme GT 8 significantly outperforms the Samsung Galaxy A21s (85/100 vs 52/100). In the "portability" category, the Samsung Galaxy A21s is a bit better (55/100 vs 50/100).
| Specification | Realme GT 8 | Samsung Galaxy A21s | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Exynos 850 | |
| AnTuTu | 3119308 | 234339 | |
| Geekbench Single | 3041 | 300 | |
| Geekbench Multi | 9494 | 836 | |
| Display | 6.8" AMOLED | 6.5" IPS LCD | |
| Resolution | 1440x3136 | — | |
| Refresh rate | 144 Hz | 60 Hz | |
| Battery | 7000 mAh | 5000 mAh | |
| Charging | 100W | — | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 16 MP | 13 MP | |
| RAM | 12GB / 16GB | 3GB / 4GB / 6GB | |
| Storage | 256GB / 512GB / 1TB | 32GB / 64GB | |
| OS | Android 16 | — | |
| NFC | — | yes | |
| Dimensions | — | 163.7×75.3×8.9 mm | |
| Weight | 209 g | 192 g | |
| Launch price | $350 | $215 |
Realme GT 8
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 16MP
Samsung Galaxy A21s
- Main: 48MP
- Front: 13MP
Realme GT 8
- 6.8" AMOLED
- Resolution: 1440x3136
- Refresh rate: 144 Hz
Samsung Galaxy A21s
- 6.5" IPS LCD
- Refresh rate: 60 Hz
Realme GT 8
- 7000 mAh
- Wired: 100W
- Wireless charging: no data
Samsung Galaxy A21s
- 5000 mAh
- No wireless charging
We compared Realme GT 8 and Samsung Galaxy A21s, covering their specs and all relevant benchmarks.
Realme GT 8 leads Samsung Galaxy A21s by 1231.1% in our overall performance rating.
Launch price difference: $135. Samsung Galaxy A21s was $135 cheaper at launch.
performance
In the "performance" category, the Realme GT 8 significantly outperforms the Samsung Galaxy A21s (92/100 vs 16/100).
display
In the "display" category, the Realme GT 8 significantly outperforms the Samsung Galaxy A21s (98/100 vs 32/100).
camera
In the "camera" category, the Realme GT 8 notably outperforms the Samsung Galaxy A21s (56/100 vs 30/100).
battery
In the "battery" category, the Realme GT 8 significantly outperforms the Samsung Galaxy A21s (85/100 vs 52/100).
portability
In the "portability" category, the Samsung Galaxy A21s is a bit better (55/100 vs 50/100).
Which is better: the Realme GT 8 or the Samsung Galaxy A21s?
The Realme GT 8 significantly outperforms the Samsung Galaxy A21s by 51 points (80/100 vs 29/100).
What is the rating of the Realme GT 8 and the Samsung Galaxy A21s?
The Realme GT 8 has a MobileRank rating of 80/100, the Samsung Galaxy A21s — 29/100.
Which has the better camera: the Realme GT 8 or the Samsung Galaxy A21s?
The Realme GT 8 leads on camera score (56/100 vs 30/100).
Which is more powerful: the Realme GT 8 or the Samsung Galaxy A21s?
The Realme GT 8 leads on performance (92/100 vs 16/100).
Should you choose the Realme GT 8 over the Samsung Galaxy A21s?
The Realme GT 8 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Samsung Galaxy A21s is a better fit for everyday use.