Redmi K40S vs Vivo Y77 (China)
The Redmi K40S (2022) runs on the Qualcomm Snapdragon 870 5G, while the Vivo Y77 (China) (2022) runs on the MediaTek Dimensity 930. By overall MobileRank rating, the Redmi K40S leads — 33/100 vs 29/100 (a 4-point difference). Key differences: the main camera is 48 MP vs 50 MP; the Redmi K40S has NFC for contactless payments, the Vivo Y77 (China) doesn't.
Redmi K40S
Vivo Y77 (China)
- Higher performance (8/100 vs 0/100)
- Better camera (31/100 vs 24/100)
- Faster charging: 80W vs 67W
- Better main camera: 50MP vs 48MP
- Lighter: 194g vs 195g
- Longer battery life (39/100 vs 35/100)
- Better design/ergonomics (57/100 vs 56/100)
Comparing the Redmi K40S vs the Vivo Y77 (China), the Redmi K40S scores 4 points higher (33/100 vs 29/100). In the "performance" category, the Redmi K40S is a bit better (8/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Redmi K40S is a bit better (31/100 vs 24/100). In the "battery" category, the Vivo Y77 (China) and the Redmi K40S are nearly equal (39/100 vs 35/100). In the "design" category, the Vivo Y77 (China) and the Redmi K40S are nearly equal (57/100 vs 56/100). In the "value for money" category, both devices are on the same level — 55/100.
| Specification | Redmi K40S | Vivo Y77 (China) | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 870 5G | MediaTek Dimensity 930 | |
| AnTuTu | 1010069 | — | |
| Geekbench Single | 1298 | — | |
| Geekbench Multi | 3520 | — | |
| Display | 6.7" AMOLED | 6.6" IPS LCD | |
| Resolution | 1080x2400 | 1080x2388 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 4500 mAh | 4500 mAh | |
| Charging | 67W | 80W | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 8 MP | |
| RAM | 6GB / 8GB / 12GB | 6GB / 8GB / 12GB | |
| Storage | 128GB / 256GB | 128GB / 256GB | |
| OS | Android 12, MIUI 13 | Android 12, Origin OS Ocean | |
| Brightness (peak) | 1300 nits | — | |
| NFC | yes | no | |
| Dimensions | 163.2×76.0×7.7 mm | 164.2×75.8×8.6 mm | |
| Weight | 195 g | 194 g | |
| Price | — | — |
Redmi K40S
- Main: 48MP f/f/1.8
- Ultrawide: 8MP
- Front: 20MP
Vivo Y77 (China)
- Main: 50MP f/f/1.8
- Front: 8MP
Redmi K40S
- 6.7" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Vivo Y77 (China)
- 6.6" IPS LCD
- Resolution: 1080x2388
- Refresh rate: 120 Hz
Redmi K40S
- 4500 mAh
- Wired: 67W
- No wireless charging
Vivo Y77 (China)
- 4500 mAh
- Wired: 80W
- No wireless charging
performance
In the "performance" category, the Redmi K40S is a bit better (8/100 vs 0/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Redmi K40S is a bit better (31/100 vs 24/100).
battery
In the "battery" category, the Vivo Y77 (China) and the Redmi K40S are nearly equal (39/100 vs 35/100).
design
In the "design" category, the Vivo Y77 (China) and the Redmi K40S are nearly equal (57/100 vs 56/100).
value for money
In the "value for money" category, both devices are on the same level — 55/100.
Which is better: the Redmi K40S or the Vivo Y77 (China)?
The Redmi K40S edges out the Vivo Y77 (China) by just 4 points — the two devices are very close in overall level.
What is the rating of the Redmi K40S and the Vivo Y77 (China)?
The Redmi K40S has a MobileRank rating of 33/100, the Vivo Y77 (China) — 29/100.
Which has the better camera: the Redmi K40S or the Vivo Y77 (China)?
The Redmi K40S leads on camera score (31/100 vs 24/100).
Which is more powerful: the Redmi K40S or the Vivo Y77 (China)?
The Redmi K40S leads on performance (8/100 vs 0/100).
Should you choose the Redmi K40S over the Vivo Y77 (China)?
The Redmi K40S is a better fit for everyday use. The Vivo Y77 (China) is a better fit for everyday use.