Realme C30s vs Redmi K90

Comparing the Realme C30s (2022) and the Redmi K90 (2025) on specs and benchmarks. By overall MobileRank rating, the Redmi K90 leads — 68/100 vs 11/100 (a 57-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5000); the main camera is 8 MP vs 50 MP; the Redmi K90 has NFC for contactless payments, the Realme C30s doesn't; the Realme C30s is noticeably lighter (186g vs 206g).

The Redmi K90 significantly outperforms the Realme C30s by 57 points (68/100 vs 11/100).
Profile comparison
Category scores
Realme C30s
Performance 0
Display 0
Camera 0
Battery 36
Design 67
Value for money 55
Redmi K90
Performance 69
Display 100
Camera 53
Battery 71
Design 42
Value for money 82
What makes Realme C30s better?
  • Lighter: 186g vs 206g

  • Better design/ergonomics (67/100 vs 42/100)
What makes Redmi K90 better?
  • Bigger battery: 7100 vs 5000 mAh
  • Better main camera: 50MP vs 8MP

  • Higher performance (69/100 vs 0/100)
  • Better camera (53/100 vs 0/100)
  • Longer battery life (71/100 vs 36/100)
  • Better display (100/100 vs 0/100)
  • Better value for money (82/100 vs 55/100)
Comparison verdict

Comparing the Realme C30s vs the Redmi K90, the Redmi K90 scores 57 points higher (68/100 vs 11/100). In the "performance" category, the Redmi K90 leads (69/100 vs 0/100). In the "camera" category, the Redmi K90 leads (53/100 vs 0/100). In the "battery" category, the Redmi K90 leads (71/100 vs 36/100). 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 Realme C30s (69/100 vs 0/100). In the "display" category, the Redmi K90 significantly outperforms the Realme C30s (100/100 vs 0/100). In the "camera" category, the Redmi K90 significantly outperforms the Realme C30s (53/100 vs 0/100). In the "battery" category, the Redmi K90 significantly outperforms the Realme C30s (71/100 vs 36/100). In the "design" category, the Realme C30s notably outperforms the Redmi K90 (67/100 vs 42/100). In the "value for money" category, the Redmi K90 notably outperforms the Realme C30s (82/100 vs 55/100).

Realme C30s: The Realme C30s is a better fit for everyday use.
Redmi K90: The Redmi K90 is a better fit for active users, budget-conscious buyers.
Specs comparison
Specification Realme C30s Redmi K90
Processor Qualcomm Snapdragon 8 Elite
AnTuTu 3088357
Geekbench Single 3050
Geekbench Multi 9300
Display 6.5" IPS LCD 6.6" AMOLED
Resolution 720x1600 2510x1156
Refresh rate 120 Hz
Battery 5000 mAh 7100 mAh
Charging 100W
Main camera 8 MP 50 MP
Ultrawide 0 MP 8 MP
Telephoto 0 MP 50 MP
Front camera 5 MP 20 MP
RAM 2GB / 3GB / 4GB 12GB / 16GB
Storage 32GB / 64GB 256GB / 512GB
OS Android 12, Realme UI Go Android 16
Brightness (peak) 3500 nits
NFC no yes
Protection IP68
Dimensions 164.2×75.7×8.5 mm 157.5×75.3×8.0 mm
Weight 186 g 206 g
Price $401
Camera comparison
Realme C30s
  • Main: 8MP
  • Front: 5MP
0
camera
Redmi K90
  • Main: 50MP f/f/1.9
  • Ultrawide: 8MP
  • Telephoto: 50MP
  • Front: 20MP
53
camera
Display comparison
Realme C30s
  • 6.5" IPS LCD
  • Resolution: 720x1600
  • Refresh rate: —
0
display
Redmi K90
  • 6.6" AMOLED
  • Resolution: 2510x1156
  • Refresh rate: 120 Hz
100
display
Battery and charging
Realme C30s
  • 5000 mAh
  • No wireless charging
36
battery
Redmi K90
  • 7100 mAh
  • Wired: 100W
  • No wireless charging
71
battery
Benchmarks
Price and availability
Realme C30s
Price unknown
Redmi K90
$401
Detailed category analysis
performance

In the "performance" category, the Redmi K90 significantly outperforms the Realme C30s (69/100 vs 0/100).

display

In the "display" category, the Redmi K90 significantly outperforms the Realme C30s (100/100 vs 0/100).

camera

In the "camera" category, the Redmi K90 significantly outperforms the Realme C30s (53/100 vs 0/100).

battery

In the "battery" category, the Redmi K90 significantly outperforms the Realme C30s (71/100 vs 36/100).

design

In the "design" category, the Realme C30s notably outperforms the Redmi K90 (67/100 vs 42/100).

value for money

In the "value for money" category, the Redmi K90 notably outperforms the Realme C30s (82/100 vs 55/100).

Frequently asked questions
Which is better: the Realme C30s or the Redmi K90?

The Redmi K90 significantly outperforms the Realme C30s by 57 points (68/100 vs 11/100).

What is the rating of the Realme C30s and the Redmi K90?

The Realme C30s has a MobileRank rating of 11/100, the Redmi K90 — 68/100.

Which has the better camera: the Realme C30s or the Redmi K90?

The Redmi K90 leads on camera score (53/100 vs 0/100).

Which is more powerful: the Realme C30s or the Redmi K90?

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

Should you choose the Realme C30s over the Redmi K90?

The Realme C30s is a better fit for everyday use. The Redmi K90 is a better fit for active users, budget-conscious buyers.