Redmi K40 vs Vivo iQOO Z7
The Redmi K40 (2021) runs on the Qualcomm Snapdragon 870, while the Vivo iQOO Z7 (2023) runs on the MediaTek Dimensity 920. By overall MobileRank rating, the Redmi K40 leads — 54/100 vs 50/100 (a 4-point difference). Key differences: the Redmi K40 has the bigger battery (4520 mAh vs 4500); the main camera is 48 MP vs 64 MP; the Redmi K40 is faster in AnTuTu (1,010,069 vs 750,481); the Redmi K40 has NFC for contactless payments, the Vivo iQOO Z7 doesn't; the Vivo iQOO Z7 is noticeably lighter (173g vs 196g).
Profile comparison
Category scores
Redmi K40
Vivo iQOO Z7
What makes Redmi K40 better?
- Higher AnTuTu: 1010069 vs 750481
- Better Geekbench Single: 1298 vs 936
- Better Geekbench Multi: 3520 vs 2318
- Bigger battery: 4520 vs 4500 mAh
- Higher refresh rate: 120Hz vs 90Hz
- Higher performance (61/100 vs 51/100)
- Longer battery life (42/100 vs 38/100)
- Better display (79/100 vs 69/100)
What makes Vivo iQOO Z7 better?
- Faster charging: 44W vs 33W
- Better main camera: 64MP vs 48MP
- Lighter: 173g vs 196g
- Better camera (40/100 vs 36/100)
- Better portability (77/100 vs 64/100)
Comparison verdict
Comparing the Redmi K40 vs the Vivo iQOO Z7, the Redmi K40 scores 4 points higher (54/100 vs 50/100). In the "performance" category, the Redmi K40 leads (61/100 vs 51/100). In the "performance" category, the Redmi K40 is a bit better (61/100 vs 51/100). In the "display" category, the Redmi K40 is a bit better (79/100 vs 69/100). In the "camera" category, the Vivo iQOO Z7 and the Redmi K40 are nearly equal (40/100 vs 36/100). In the "battery" category, the Redmi K40 and the Vivo iQOO Z7 are nearly equal (42/100 vs 38/100). In the "portability" category, the Vivo iQOO Z7 is a bit better (77/100 vs 64/100).
Specs comparison
| Specification | Redmi K40 | Vivo iQOO Z7 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 870 | MediaTek Dimensity 920 | |
| AnTuTu | 1010069 | 750481 | |
| Geekbench Single | 1298 | 936 | |
| Geekbench Multi | 3520 | 2318 | |
| Display | 6.7" AMOLED | 6.4" AMOLED | |
| Resolution | 2400x1080 | 1080x2400 | |
| Refresh rate | 120 Hz | 90 Hz | |
| Battery | 4520 mAh | 4500 mAh | |
| Charging | 33W | 44W | |
| Main camera | 48 MP | 64 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 16 MP | |
| RAM | 6GB / 8GB / 12GB | 6GB / 8GB | |
| Storage | 128GB / 256GB | 128GB | |
| OS | Android 11 | Android 13, Funtouch 13 | |
| Brightness (peak) | 1300 nits | 1300 nits | |
| NFC | yes | no | |
| Protection | — | IP54 | |
| Dimensions | 163.7×76.4×7.8 mm | 158.9×73.5×7.8 mm | |
| Weight | 196 g | 173 g | |
| Launch price | $309 | — |
Camera comparison
Redmi K40
- Main: 48MP f/1.79
- Ultrawide: 8MP
- Front: 20MP
Vivo iQOO Z7
- Main: 64MP
- Front: 16MP
Display comparison
Redmi K40
- 6.7" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
Vivo iQOO Z7
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Battery and charging
Redmi K40
- 4520 mAh
- Wired: 33W
- Wireless charging: no data
Vivo iQOO Z7
- 4500 mAh
- Wired: 44W
- No wireless charging
Overall performance score
We compared Redmi K40 and Vivo iQOO Z7, covering their specs and all relevant benchmarks.
Redmi K40 leads Vivo iQOO Z7 by 34.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo iQOO Z7
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K40 is a bit better (61/100 vs 51/100).
display
In the "display" category, the Redmi K40 is a bit better (79/100 vs 69/100).
camera
In the "camera" category, the Vivo iQOO Z7 and the Redmi K40 are nearly equal (40/100 vs 36/100).
battery
In the "battery" category, the Redmi K40 and the Vivo iQOO Z7 are nearly equal (42/100 vs 38/100).
portability
In the "portability" category, the Vivo iQOO Z7 is a bit better (77/100 vs 64/100).
Frequently asked questions
Which is better: the Redmi K40 or the Vivo iQOO Z7?
The Redmi K40 edges out the Vivo iQOO Z7 by just 4 points — the two devices are very close in overall level.
What is the rating of the Redmi K40 and the Vivo iQOO Z7?
The Redmi K40 has a MobileRank rating of 54/100, the Vivo iQOO Z7 — 50/100.
Which is more powerful: the Redmi K40 or the Vivo iQOO Z7?
The Redmi K40 leads on performance (61/100 vs 51/100).
Should you choose the Redmi K40 over the Vivo iQOO Z7?
The Redmi K40 is a better fit for active users.