Fairphone 5 vs Redmi K90 Ultra

The Fairphone 5 (2023) runs on the Qualcomm QCM6490, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $770 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 75/100 vs 47/100 (a 28-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4200); the Fairphone 5 is noticeably lighter (212g vs 227g).

The Redmi K90 Ultra significantly outperforms the Fairphone 5 by 28 points (75/100 vs 47/100).
Profile comparison
Category scores
Fairphone 5
Performance
Display 72
Camera 48
Battery 28
Portability 36
Value for money 6
Redmi K90 Ultra
Performance 92
Display 94
Camera 37
Battery 92
Portability 40
Value for money 86
What makes Fairphone 5 better?
  • Lighter: 212g vs 227g

  • Better camera (48/100 vs 37/100)
What makes Redmi K90 Ultra better?
  • Bigger battery: 8550 vs 4200 mAh
  • Faster charging: 100W vs 30W
  • Higher refresh rate: 165Hz vs 90Hz
  • Cheaper: $420 vs $770

  • Longer battery life (92/100 vs 28/100)
  • Better display (94/100 vs 72/100)
  • Better portability (40/100 vs 36/100)
  • Better value for money (86/100 vs 6/100)
Comparison verdict

Comparing the Fairphone 5 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 28 points higher (75/100 vs 47/100). In the "camera" category, the Fairphone 5 leads (48/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra leads (92/100 vs 28/100). In the "value for money" category, the Redmi K90 Ultra leads (86/100 vs 6/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Fairphone 5 (94/100 vs 72/100). In the "camera" category, the Fairphone 5 is a bit better (48/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Fairphone 5 (92/100 vs 28/100). In the "portability" category, the Redmi K90 Ultra and the Fairphone 5 are nearly equal (40/100 vs 36/100). In the "value for money" category, the Redmi K90 Ultra significantly outperforms the Fairphone 5 (86/100 vs 6/100).

Fairphone 5: The Fairphone 5 is a better fit for everyday use.
Redmi K90 Ultra: The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.
Specs comparison
Specification Fairphone 5 Redmi K90 Ultra
Processor Qualcomm QCM6490 Qualcomm Snapdragon 8 Elite
AnTuTu 3119308
Geekbench Single 3041
Geekbench Multi 9494
Display 6.5" OLED 6.8" AMOLED
Resolution 1224x2700 1280x2772
Refresh rate 90 Hz 165 Hz
Battery 4200 mAh 8550 mAh
Charging 30W 100W
DXOMark (camera) 108
Main camera 50 MP 50 MP
Ultrawide 50 MP 8 MP
Front camera 50 MP 20 MP
RAM 6GB / 8GB 12GB / 16GB
Storage 128GB / 256GB 256GB / 512GB
OS Android 13, upgradable to Android 14, up to 5 major Android upgrades Android 16
Brightness (peak) 880 nits 3500 nits
NFC yes yes
Protection IP55 IP68/IP69
Dimensions 161.6×75.8×9.6 mm 162.9×77.9×8.2 mm
Weight 212 g 227 g
Price $770 $420
Camera comparison
Fairphone 5
  • Main: 50MP f/f/1.9
  • Ultrawide: 50MP
  • Front: 50MP
48
camera
Redmi K90 Ultra
  • Main: 50MP f/1.7
  • Ultrawide: 8MP
  • Front: 20MP
37
camera
Display comparison
Fairphone 5
  • 6.5" OLED
  • Resolution: 1224x2700
  • Refresh rate: 90 Hz
72
display
Redmi K90 Ultra
  • 6.8" AMOLED
  • Resolution: 1280x2772
  • Refresh rate: 165 Hz
94
display
Battery and charging
Fairphone 5
  • 4200 mAh
  • Wired: 30W
  • No wireless charging
28
battery
Redmi K90 Ultra
  • 8550 mAh
  • Wired: 100W
  • Wireless charging: no data
92
battery
Benchmarks
Price and availability
Fairphone 5
$770
Redmi K90 Ultra
$420

Price difference: $350. Redmi K90 Ultra is cheaper by $350.

Detailed category analysis
display

In the "display" category, the Redmi K90 Ultra notably outperforms the Fairphone 5 (94/100 vs 72/100).

camera

In the "camera" category, the Fairphone 5 is a bit better (48/100 vs 37/100).

battery

In the "battery" category, the Redmi K90 Ultra significantly outperforms the Fairphone 5 (92/100 vs 28/100).

portability

In the "portability" category, the Redmi K90 Ultra and the Fairphone 5 are nearly equal (40/100 vs 36/100).

value for money

In the "value for money" category, the Redmi K90 Ultra significantly outperforms the Fairphone 5 (86/100 vs 6/100).

Frequently asked questions
Which is better: the Fairphone 5 or the Redmi K90 Ultra?

The Redmi K90 Ultra significantly outperforms the Fairphone 5 by 28 points (75/100 vs 47/100).

What is the rating of the Fairphone 5 and the Redmi K90 Ultra?

The Fairphone 5 has a MobileRank rating of 47/100, the Redmi K90 Ultra — 75/100.

Which has the better camera: the Fairphone 5 or the Redmi K90 Ultra?

The Fairphone 5 leads on camera score (48/100 vs 37/100).

Should you choose the Fairphone 5 over the Redmi K90 Ultra?

The Fairphone 5 is a better fit for everyday use. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.