Redmi K20 vs Vivo iQOO Z6 (China)

The Redmi K20 (2019) runs on the Qualcomm Snapdragon 730, while the Vivo iQOO Z6 (China) (2022) runs on the Qualcomm Snapdragon 778G+ 5G. By overall MobileRank rating, the Vivo iQOO Z6 (China) leads — 31/100 vs 18/100 (a 13-point difference). Key differences: the Vivo iQOO Z6 (China) has the bigger battery (4500 mAh vs 4000); the main camera is 48 MP vs 64 MP.

The Vivo iQOO Z6 (China) is noticeably better than the Redmi K20 — the overall rating gap is 13 points.
Profile comparison
Category scores
Redmi K20
Performance 0
Display 0
Camera 36
Battery 12
Design 61
Value for money 93
Vivo iQOO Z6 (China)
Performance 0
Display 100
Camera 34
Battery 39
Design 57
Value for money 55
What makes Redmi K20 better?
  • Lighter: 191g vs 194g

  • Better camera (36/100 vs 34/100)
  • Better design/ergonomics (61/100 vs 57/100)
  • Better value for money (93/100 vs 55/100)
What makes Vivo iQOO Z6 (China) better?
  • Bigger battery: 4500 vs 4000 mAh
  • Faster charging: 80W vs 18W
  • Better main camera: 64MP vs 48MP
  • Higher refresh rate: 120Hz vs 60Hz

  • Longer battery life (39/100 vs 12/100)
  • Better display (100/100 vs 0/100)
Comparison verdict

Comparing the Redmi K20 vs the Vivo iQOO Z6 (China), the Vivo iQOO Z6 (China) scores 13 points higher (31/100 vs 18/100). In the "battery" category, the Vivo iQOO Z6 (China) leads (39/100 vs 12/100). In the "value for money" category, the Redmi K20 leads (93/100 vs 55/100). In the "performance" category, both devices are on the same level — 0/100. In the "display" category, the Vivo iQOO Z6 (China) significantly outperforms the Redmi K20 (100/100 vs 0/100). In the "camera" category, the Redmi K20 and the Vivo iQOO Z6 (China) are nearly equal (36/100 vs 34/100). In the "battery" category, the Vivo iQOO Z6 (China) notably outperforms the Redmi K20 (39/100 vs 12/100). In the "design" category, the Redmi K20 and the Vivo iQOO Z6 (China) are nearly equal (61/100 vs 57/100). In the "value for money" category, the Redmi K20 significantly outperforms the Vivo iQOO Z6 (China) (93/100 vs 55/100).

Redmi K20: The Redmi K20 is a better fit for budget-conscious buyers.
Vivo iQOO Z6 (China): The Vivo iQOO Z6 (China) is a better fit for everyday use.
Specs comparison
Specification Redmi K20 Vivo iQOO Z6 (China)
Processor Qualcomm Snapdragon 730 Qualcomm Snapdragon 778G+ 5G
AnTuTu 496392
Geekbench Single 724
Geekbench Multi 1836
Display 6.4" AMOLED 6.6" IPS LCD
Resolution 2340x1080 1080x2388
Refresh rate 60 Hz 120 Hz
Battery 4000 mAh 4500 mAh
Charging 18W 80W
Main camera 48 MP 64 MP
Ultrawide 13 MP 0 MP
Telephoto 8 MP 0 MP
Front camera 20 MP 8 MP
RAM 6GB / 8GB 8GB / 12GB
Storage 64GB / 128GB / 256GB 128GB / 256GB
OS Android 9 Android 12, Origin OS Ocean
Brightness (peak) 650 nits
NFC yes
Dimensions 164.0×75.8×8.6 mm
Weight 191 g 194 g
Price $250
Camera comparison
Redmi K20
  • Main: 48MP f/f/1.75
  • Ultrawide: 13MP
  • Telephoto: 8MP
  • Front: 20MP
36
camera
Vivo iQOO Z6 (China)
  • Main: 64MP f/f/1.8
  • Front: 8MP
34
camera
Display comparison
Redmi K20
  • 6.4" AMOLED
  • Resolution: 2340x1080
  • Refresh rate: 60 Hz
0
display
Vivo iQOO Z6 (China)
  • 6.6" IPS LCD
  • Resolution: 1080x2388
  • Refresh rate: 120 Hz
100
display
Battery and charging
Redmi K20
  • 4000 mAh
  • Wired: 18W
  • No wireless charging
12
battery
Vivo iQOO Z6 (China)
  • 4500 mAh
  • Wired: 80W
  • No wireless charging
39
battery
Benchmarks
Price and availability
Redmi K20
$250
Vivo iQOO Z6 (China)
Price unknown
Detailed category analysis
performance

In the "performance" category, both devices are on the same level — 0/100.

display

In the "display" category, the Vivo iQOO Z6 (China) significantly outperforms the Redmi K20 (100/100 vs 0/100).

camera

In the "camera" category, the Redmi K20 and the Vivo iQOO Z6 (China) are nearly equal (36/100 vs 34/100).

battery

In the "battery" category, the Vivo iQOO Z6 (China) notably outperforms the Redmi K20 (39/100 vs 12/100).

design

In the "design" category, the Redmi K20 and the Vivo iQOO Z6 (China) are nearly equal (61/100 vs 57/100).

value for money

In the "value for money" category, the Redmi K20 significantly outperforms the Vivo iQOO Z6 (China) (93/100 vs 55/100).

Frequently asked questions
Which is better: the Redmi K20 or the Vivo iQOO Z6 (China)?

The Vivo iQOO Z6 (China) is noticeably better than the Redmi K20 — the overall rating gap is 13 points.

What is the rating of the Redmi K20 and the Vivo iQOO Z6 (China)?

The Redmi K20 has a MobileRank rating of 18/100, the Vivo iQOO Z6 (China) — 31/100.

Should you choose the Redmi K20 over the Vivo iQOO Z6 (China)?

The Redmi K20 is a better fit for budget-conscious buyers. The Vivo iQOO Z6 (China) is a better fit for everyday use.