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).
Profile comparison
Category scores
Redmi K40
Vivo X300s
What makes Redmi K40 better?
- Lighter: 196g vs 217g
- Cheaper at launch: $309 vs $723
- Better portability (64/100 vs 42/100)
What makes Vivo X300s better?
- Higher AnTuTu: 3703823 vs 1010069
- Better Geekbench Single: 3293 vs 1298
- Better Geekbench Multi: 10243 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 (95/100 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)
Comparison verdict
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 (95/100 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 — 46/100, Vivo X300s — 92/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Vivo X300s significantly outperforms the Redmi K40 (95/100 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).
Specs comparison
| Specification | Redmi K40 | Vivo X300s | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 870 | Dimensity 9500 | |
| AnTuTu | 1010069 | 3703823 | |
| Geekbench Single | 1298 | 3293 | |
| Geekbench Multi | 3520 | 10243 | |
| 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 | |
| Brightness (peak) | 1300 nits | — | |
| NFC | yes | — | |
| Dimensions | 163.7×76.4×7.8 mm | — | |
| Weight | 196 g | 217 g | |
| Launch price | $309 | $723 |
Camera comparison
Redmi K40
- Main: 48MP f/1.79
- Ultrawide: 8MP
- Front: 20MP
Vivo X300s
- Main: 200MP f/1.7
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 50MP
Display comparison
Redmi K40
- 6.7" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Vivo X300s
- 6.8" LTPO AMOLED
- Resolution: 2800x1260
- Refresh rate: 144 Hz
Battery and charging
Redmi K40
- 4520 mAh
- Wired: 33W
- Wireless charging: no data
Vivo X300s
- 7100 mAh
- Wired: 90W
- Wireless: 40W
Overall performance score
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.
Benchmarks
Launch prices and where to check today's
Launch price difference: $414. Redmi K40 was $414 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Vivo X300s significantly outperforms the Redmi K40 (95/100 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).
Frequently asked questions
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 (95/100 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.