Redmi K40S vs Vivo iQOO Z7

The Redmi K40S (2022) runs on the Qualcomm Snapdragon 870 5G, while the Vivo iQOO Z7 (2023) runs on the MediaTek Dimensity 920. By overall MobileRank rating, the Redmi K40S leads — 33/100 vs 26/100 (a 7-point difference). Key differences: the main camera is 48 MP vs 64 MP; the Redmi K40S has NFC for contactless payments, the Vivo iQOO Z7 doesn't; the Vivo iQOO Z7 is noticeably lighter (173g vs 195g).

The Redmi K40S edges out the Vivo iQOO Z7 by just 7 points — the two devices are very close in overall level.
Profile comparison
Category scores
Redmi K40S
Performance 8
Display 100
Camera 31
Battery 35
Design 56
Value for money 55
Vivo iQOO Z7
Performance 0
Display 50
Camera 37
Battery 30
Design 83
Value for money 55
What makes Redmi K40S better?
  • Faster charging: 67W vs 44W
  • Higher refresh rate: 120Hz vs 90Hz

  • Higher performance (8/100 vs 0/100)
  • Longer battery life (35/100 vs 30/100)
  • Better display (100/100 vs 50/100)
What makes Vivo iQOO Z7 better?
  • Better main camera: 64MP vs 48MP
  • Lighter: 173g vs 195g

  • Better camera (37/100 vs 31/100)
  • Better design/ergonomics (83/100 vs 56/100)
Comparison verdict

Comparing the Redmi K40S vs the Vivo iQOO Z7, the Redmi K40S scores 7 points higher (33/100 vs 26/100). In the "performance" category, the Redmi K40S is a bit better (8/100 vs 0/100). In the "display" category, the Redmi K40S significantly outperforms the Vivo iQOO Z7 (100/100 vs 50/100). In the "camera" category, the Vivo iQOO Z7 is a bit better (37/100 vs 31/100). In the "battery" category, the Redmi K40S is a bit better (35/100 vs 30/100). In the "design" category, the Vivo iQOO Z7 notably outperforms the Redmi K40S (83/100 vs 56/100). In the "value for money" category, both devices are on the same level — 55/100.

Redmi K40S: The Redmi K40S is a better fit for everyday use.
Vivo iQOO Z7: The Vivo iQOO Z7 is a better fit for everyday use.
Specs comparison
Specification Redmi K40S Vivo iQOO Z7
Processor Qualcomm Snapdragon 870 5G MediaTek Dimensity 920
AnTuTu 1010069
Geekbench Single 1298
Geekbench Multi 3520
Display 6.7" AMOLED 6.4" AMOLED
Resolution 1080x2400 1080x2400
Refresh rate 120 Hz 90 Hz
Battery 4500 mAh 4500 mAh
Charging 67W 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 12, MIUI 13 Android 13, Funtouch 13
Brightness (peak) 1300 nits 1300 nits
NFC yes no
Protection IP54
Dimensions 163.2×76.0×7.7 mm 158.9×73.5×7.8 mm
Weight 195 g 173 g
Price
Camera comparison
Redmi K40S
  • Main: 48MP f/f/1.8
  • Ultrawide: 8MP
  • Front: 20MP
31
camera
Vivo iQOO Z7
  • Main: 64MP
  • Front: 16MP
37
camera
Display comparison
Redmi K40S
  • 6.7" AMOLED
  • Resolution: 1080x2400
  • Refresh rate: 120 Hz
100
display
Vivo iQOO Z7
  • 6.4" AMOLED
  • Resolution: 1080x2400
  • Refresh rate: 90 Hz
50
display
Battery and charging
Redmi K40S
  • 4500 mAh
  • Wired: 67W
  • No wireless charging
35
battery
Vivo iQOO Z7
  • 4500 mAh
  • Wired: 44W
  • No wireless charging
30
battery
Benchmarks
Detailed category analysis
performance

In the "performance" category, the Redmi K40S is a bit better (8/100 vs 0/100).

display

In the "display" category, the Redmi K40S significantly outperforms the Vivo iQOO Z7 (100/100 vs 50/100).

camera

In the "camera" category, the Vivo iQOO Z7 is a bit better (37/100 vs 31/100).

battery

In the "battery" category, the Redmi K40S is a bit better (35/100 vs 30/100).

design

In the "design" category, the Vivo iQOO Z7 notably outperforms the Redmi K40S (83/100 vs 56/100).

value for money

In the "value for money" category, both devices are on the same level — 55/100.

Frequently asked questions
Which is better: the Redmi K40S or the Vivo iQOO Z7?

The Redmi K40S edges out the Vivo iQOO Z7 by just 7 points — the two devices are very close in overall level.

What is the rating of the Redmi K40S and the Vivo iQOO Z7?

The Redmi K40S has a MobileRank rating of 33/100, the Vivo iQOO Z7 — 26/100.

Which has the better camera: the Redmi K40S or the Vivo iQOO Z7?

The Vivo iQOO Z7 leads on camera score (37/100 vs 31/100).

Which is more powerful: the Redmi K40S or the Vivo iQOO Z7?

The Redmi K40S leads on performance (8/100 vs 0/100).

Should you choose the Redmi K40S over the Vivo iQOO Z7?

The Redmi K40S is a better fit for everyday use. The Vivo iQOO Z7 is a better fit for everyday use.