Redmi K40 vs Vivo X300s
The Redmi K40 (2021) runs on the Qualcomm Snapdragon 870, while the Vivo X300s (2026) runs on the Dimensity 9500; launch prices were $309 and $723. By overall MobileRank rating, the Vivo X300s leads — 89/100 vs 54/100 (a 35-point difference). Key differences: the Vivo X300s has the bigger battery (7100 mAh vs 4520); the main camera is 48 MP vs 200 MP; the Vivo X300s is faster in AnTuTu (3,703,823 vs 1,010,069); the Redmi K40 is noticeably lighter (196g vs 217g).
Redmi K40
Vivo X300s
- Lighter: 196g vs 217g
- Cheaper at launch: $309 vs $723
- Better portability (64/100 vs 42/100)
- Higher AnTuTu: 3703823 vs 1010069
- Better Geekbench Single: 3228 vs 1298
- Better Geekbench Multi: 9553 vs 3520
- Bigger battery: 7100 vs 4520 mAh
- Faster charging: 90W vs 33W
- Better main camera: 200MP vs 48MP
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (94/100 vs 61/100)
- Better camera (94/100 vs 36/100)
- Longer battery life (83/100 vs 42/100)
- Better display (94/100 vs 79/100)
Comparing the Redmi K40 vs the Vivo X300s, the Vivo X300s scores 35 points higher (89/100 vs 54/100). In the "performance" category, the Vivo X300s leads (94/100 vs 61/100). In the "camera" category, the Vivo X300s leads (94/100 vs 36/100). In the "battery" category, the Vivo X300s leads (83/100 vs 42/100). Value score: Redmi K40 — 50/100, Vivo X300s — 90/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo X300s significantly outperforms the Redmi K40 (94/100 vs 61/100). In the "display" category, the Vivo X300s notably outperforms the Redmi K40 (94/100 vs 79/100). In the "camera" category, the Vivo X300s significantly outperforms the Redmi K40 (94/100 vs 36/100). In the "battery" category, the Vivo X300s significantly outperforms the Redmi K40 (83/100 vs 42/100). In the "portability" category, the Redmi K40 notably outperforms the Vivo X300s (64/100 vs 42/100).
| Specification | Redmi K40 | Vivo X300s | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 870 | Dimensity 9500 | |
| AnTuTu | 1010069 | 3703823 | |
| Geekbench Single | 1298 | 3228 | |
| Geekbench Multi | 3520 | 9553 | |
| Display | 6.7" AMOLED | 6.8" LTPO AMOLED | |
| Resolution | 2400x1080 | 2800x1260 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 4520 mAh | 7100 mAh | |
| Charging | 33W | 90W | |
| Wireless charging | — | 40W | |
| Main camera | 48 MP | 200 MP | |
| Ultrawide | 8 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 20 MP | 50 MP | |
| RAM | 6GB / 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 11 | Android 16 / OriginOS 6 | |
| Weight | 196 g | 217 g | |
| Launch price | $309 | $723 |
Redmi K40
- Main: 48MP f/1.79
- Ultrawide: 8MP
- Front: 20MP
Vivo X300s
- Main: 200MP f/f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 50MP
Redmi K40
- 6.7" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Vivo X300s
- 6.8" LTPO AMOLED
- Resolution: 2800x1260
- Refresh rate: 144 Hz
Redmi K40
- 4520 mAh
- Wired: 33W
- Wireless charging: no data
Vivo X300s
- 7100 mAh
- Wired: 90W
- Wireless: 40W
We compared Redmi K40 and Vivo X300s, covering their specs and all relevant benchmarks.
Vivo X300s leads Redmi K40 by 72.7% in our overall performance rating.
Launch price difference: $414. Redmi K40 was $414 cheaper at launch.
performance
In the "performance" category, the Vivo X300s significantly outperforms the Redmi K40 (94/100 vs 61/100).
display
In the "display" category, the Vivo X300s notably outperforms the Redmi K40 (94/100 vs 79/100).
camera
In the "camera" category, the Vivo X300s significantly outperforms the Redmi K40 (94/100 vs 36/100).
battery
In the "battery" category, the Vivo X300s significantly outperforms the Redmi K40 (83/100 vs 42/100).
portability
In the "portability" category, the Redmi K40 notably outperforms the Vivo X300s (64/100 vs 42/100).
Which is better: the Redmi K40 or the Vivo X300s?
The Vivo X300s significantly outperforms the Redmi K40 by 35 points (89/100 vs 54/100).
What is the rating of the Redmi K40 and the Vivo X300s?
The Redmi K40 has a MobileRank rating of 54/100, the Vivo X300s — 89/100.
Which has the better camera: the Redmi K40 or the Vivo X300s?
The Vivo X300s leads on camera score (94/100 vs 36/100).
Which is more powerful: the Redmi K40 or the Vivo X300s?
The Vivo X300s leads on performance (94/100 vs 61/100).
Should you choose the Redmi K40 over the Vivo X300s?
The Redmi K40 is a better fit for active users. The Vivo X300s is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.