Redmi K90 vs Xiaomi Black Shark 5 RS

The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Xiaomi Black Shark 5 RS (2022) runs on the Qualcomm Snapdragon 888/888+ 5G. By overall MobileRank rating, the Redmi K90 leads — 68/100 vs 34/100 (a 34-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 4500); the main camera is 50 MP vs 64 MP; the Redmi K90 is thinner (8.0mm vs 9.9mm).

The Redmi K90 significantly outperforms the Xiaomi Black Shark 5 RS by 34 points (68/100 vs 34/100).
Profile comparison
Category scores
Redmi K90
Performance 69
Display 100
Camera 53
Battery 71
Design 42
Value for money 82
Xiaomi Black Shark 5 RS
Performance 0
Display 100
Camera 43
Battery 49
Design 25
Value for money 55
What makes Redmi K90 better?
  • Bigger battery: 7100 vs 4500 mAh
  • Lighter: 206g vs 220g

  • Higher performance (69/100 vs 0/100)
  • Better camera (53/100 vs 43/100)
  • Longer battery life (71/100 vs 49/100)
  • Better design/ergonomics (42/100 vs 25/100)
  • Better value for money (82/100 vs 55/100)
What makes Xiaomi Black Shark 5 RS better?
  • Faster charging: 120W vs 100W
  • Better main camera: 64MP vs 50MP
  • Higher refresh rate: 144Hz vs 120Hz

  • Overall rating 34/100
Comparison verdict

Comparing the Redmi K90 vs the Xiaomi Black Shark 5 RS, the Redmi K90 scores 34 points higher (68/100 vs 34/100). In the "performance" category, the Redmi K90 leads (69/100 vs 0/100). In the "camera" category, the Redmi K90 leads (53/100 vs 43/100). In the "battery" category, the Redmi K90 leads (71/100 vs 49/100). In the "value for money" category, the Redmi K90 leads (82/100 vs 55/100). In the "performance" category, the Redmi K90 significantly outperforms the Xiaomi Black Shark 5 RS (69/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Redmi K90 is a bit better (53/100 vs 43/100). In the "battery" category, the Redmi K90 notably outperforms the Xiaomi Black Shark 5 RS (71/100 vs 49/100). In the "design" category, the Redmi K90 notably outperforms the Xiaomi Black Shark 5 RS (42/100 vs 25/100). In the "value for money" category, the Redmi K90 notably outperforms the Xiaomi Black Shark 5 RS (82/100 vs 55/100).

Redmi K90: The Redmi K90 is a better fit for active users, budget-conscious buyers.
Xiaomi Black Shark 5 RS: The Xiaomi Black Shark 5 RS is a better fit for everyday use.
Specs comparison
Specification Redmi K90 Xiaomi Black Shark 5 RS
Processor Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 888/888+ 5G
AnTuTu 3088357
Geekbench Single 3050
Geekbench Multi 9300
Display 6.6" AMOLED 6.7" AMOLED
Resolution 2510x1156 1080x2400
Refresh rate 120 Hz 144 Hz
Battery 7100 mAh 4500 mAh
Charging 100W 120W
Main camera 50 MP 64 MP
Ultrawide 8 MP 8 MP
Telephoto 50 MP 5 MP
Front camera 20 MP 20 MP
RAM 12GB / 16GB 8GB / 12GB
Storage 256GB / 512GB 256GB
OS Android 16 Android 12, Joy UI 12.8
Brightness (peak) 3500 nits 1300 nits
NFC yes yes
Protection IP68
Dimensions 157.5×75.3×8.0 mm 163.7×76.2×9.9 mm
Weight 206 g 220 g
Price $401
Camera comparison
Redmi K90
  • Main: 50MP f/f/1.9
  • Ultrawide: 8MP
  • Telephoto: 50MP
  • Front: 20MP
53
camera
Xiaomi Black Shark 5 RS
  • Main: 64MP f/f/1.8
  • Ultrawide: 8MP
  • Telephoto: 5MP
  • Front: 20MP
43
camera
Display comparison
Redmi K90
  • 6.6" AMOLED
  • Resolution: 2510x1156
  • Refresh rate: 120 Hz
100
display
Xiaomi Black Shark 5 RS
  • 6.7" AMOLED
  • Resolution: 1080x2400
  • Refresh rate: 144 Hz
100
display
Battery and charging
Redmi K90
  • 7100 mAh
  • Wired: 100W
  • No wireless charging
71
battery
Xiaomi Black Shark 5 RS
  • 4500 mAh
  • Wired: 120W
  • No wireless charging
49
battery
Benchmarks
Price and availability
Redmi K90
$401
Xiaomi Black Shark 5 RS
Price unknown
Detailed category analysis
performance

In the "performance" category, the Redmi K90 significantly outperforms the Xiaomi Black Shark 5 RS (69/100 vs 0/100).

display

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

camera

In the "camera" category, the Redmi K90 is a bit better (53/100 vs 43/100).

battery

In the "battery" category, the Redmi K90 notably outperforms the Xiaomi Black Shark 5 RS (71/100 vs 49/100).

design

In the "design" category, the Redmi K90 notably outperforms the Xiaomi Black Shark 5 RS (42/100 vs 25/100).

value for money

In the "value for money" category, the Redmi K90 notably outperforms the Xiaomi Black Shark 5 RS (82/100 vs 55/100).

Frequently asked questions
Which is better: the Redmi K90 or the Xiaomi Black Shark 5 RS?

The Redmi K90 significantly outperforms the Xiaomi Black Shark 5 RS by 34 points (68/100 vs 34/100).

What is the rating of the Redmi K90 and the Xiaomi Black Shark 5 RS?

The Redmi K90 has a MobileRank rating of 68/100, the Xiaomi Black Shark 5 RS — 34/100.

Which has the better camera: the Redmi K90 or the Xiaomi Black Shark 5 RS?

The Redmi K90 leads on camera score (53/100 vs 43/100).

Which is more powerful: the Redmi K90 or the Xiaomi Black Shark 5 RS?

The Redmi K90 leads on performance (69/100 vs 0/100).

Should you choose the Redmi K90 over the Xiaomi Black Shark 5 RS?

The Redmi K90 is a better fit for active users, budget-conscious buyers. The Xiaomi Black Shark 5 RS is a better fit for everyday use.