Motorola Edge 40 vs Redmi K90 Ultra

The Motorola Edge 40 (2023) runs on the MediaTek Dimensity 8020, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; estimated prices are $389 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 58/100 (a 15-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4400); the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 979,624); the Motorola Edge 40 is noticeably lighter (167g vs 227g).

The Redmi K90 Ultra is noticeably better than the Motorola Edge 40 — the overall rating gap is 15 points.
Profile comparison
Category scores
Motorola Edge 40
Performance 59
Display 90
Camera 42
Battery 48
Portability 83
Value for money 54
Redmi K90 Ultra
Performance 92
Display 94
Camera 37
Battery 78
Portability 40
Value for money
What makes Motorola Edge 40 better?
  • Lighter: 167g vs 227g
  • Cheaper: $389 vs $420

  • Better camera (42/100 vs 37/100)
  • Better portability (83/100 vs 40/100)
What makes Redmi K90 Ultra better?
  • Higher AnTuTu: 3119308 vs 979624
  • Better Geekbench Single: 3041 vs 1120
  • Better Geekbench Multi: 9494 vs 3665
  • Bigger battery: 8550 vs 4400 mAh
  • Faster charging: 100W vs 68W
  • Higher refresh rate: 165Hz vs 144Hz

  • Higher performance (92/100 vs 59/100)
  • Longer battery life (78/100 vs 48/100)
  • Better display (94/100 vs 90/100)
Comparison verdict

Comparing the Motorola Edge 40 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 15 points higher (73/100 vs 58/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 59/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 48/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Motorola Edge 40 (92/100 vs 59/100). In the "display" category, the Redmi K90 Ultra and the Motorola Edge 40 are nearly equal (94/100 vs 90/100). In the "camera" category, the Motorola Edge 40 is a bit better (42/100 vs 37/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Motorola Edge 40 (78/100 vs 48/100). In the "portability" category, the Motorola Edge 40 significantly outperforms the Redmi K90 Ultra (83/100 vs 40/100).

Motorola Edge 40: The Motorola Edge 40 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.
Specs comparison
Specification Motorola Edge 40 Redmi K90 Ultra
Processor MediaTek Dimensity 8020 Qualcomm Snapdragon 8 Elite
AnTuTu 979624 3119308
Geekbench Single 1120 3041
Geekbench Multi 3665 9494
Display 6.5" P-OLED 6.8" AMOLED
Resolution 1080x2400 1280x2772
Refresh rate 144 Hz 165 Hz
Battery 4400 mAh 8550 mAh
Charging 68W 100W
Wireless charging 15W 0W
Main camera 50 MP 50 MP
Ultrawide 13 MP 8 MP
Front camera 32 MP 20 MP
RAM 8GB 12GB / 16GB
Storage 128GB / 256GB 256GB / 512GB
OS Android 13, up to 2 major Android upgrades Android 16
Brightness (peak) 1200 nits 3500 nits
NFC yes yes
Protection IP68 IP68/IP69
Dimensions 158.4×72.0×7.6 mm 162.9×77.9×8.2 mm
Weight 167 g 227 g
Price $389 $420
Camera comparison
Motorola Edge 40
  • Main: 50MP f/f/1.4
  • Ultrawide: 13MP
  • Front: 32MP
42
camera
Redmi K90 Ultra
  • Main: 50MP f/1.7
  • Ultrawide: 8MP
  • Front: 20MP
37
camera
Display comparison
Motorola Edge 40
  • 6.5" P-OLED
  • Resolution: 1080x2400
  • Refresh rate: 144 Hz
90
display
Redmi K90 Ultra
  • 6.8" AMOLED
  • Resolution: 1280x2772
  • Refresh rate: 165 Hz
94
display
Battery and charging
Motorola Edge 40
  • 4400 mAh
  • Wired: 68W
  • Wireless: 15W
48
battery
Redmi K90 Ultra
  • 8550 mAh
  • Wired: 100W
  • No wireless charging
78
battery
Overall performance score

We compared Motorola Edge 40 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.

Motorola Edge 40 MediaTek Dimensity 8020
58/100
979624 AnTuTu
Redmi K90 Ultra Qualcomm Snapdragon 8 Elite
73/100 +68.6%
3119308 AnTuTu

Redmi K90 Ultra leads Motorola Edge 40 by 68.6% in our overall performance rating.

Benchmarks
Price and availability
Motorola Edge 40
$389
Redmi K90 Ultra
$420

Price difference: $31. Motorola Edge 40 is cheaper by $31.

Detailed category analysis
performance

In the "performance" category, the Redmi K90 Ultra significantly outperforms the Motorola Edge 40 (92/100 vs 59/100).

display

In the "display" category, the Redmi K90 Ultra and the Motorola Edge 40 are nearly equal (94/100 vs 90/100).

camera

In the "camera" category, the Motorola Edge 40 is a bit better (42/100 vs 37/100).

battery

In the "battery" category, the Redmi K90 Ultra significantly outperforms the Motorola Edge 40 (78/100 vs 48/100).

portability

In the "portability" category, the Motorola Edge 40 significantly outperforms the Redmi K90 Ultra (83/100 vs 40/100).

Frequently asked questions
Which is better: the Motorola Edge 40 or the Redmi K90 Ultra?

The Redmi K90 Ultra is noticeably better than the Motorola Edge 40 — the overall rating gap is 15 points.

What is the rating of the Motorola Edge 40 and the Redmi K90 Ultra?

The Motorola Edge 40 has a MobileRank rating of 58/100, the Redmi K90 Ultra — 73/100.

Which has the better camera: the Motorola Edge 40 or the Redmi K90 Ultra?

The Motorola Edge 40 leads on camera score (42/100 vs 37/100).

Which is more powerful: the Motorola Edge 40 or the Redmi K90 Ultra?

The Redmi K90 Ultra leads on performance (92/100 vs 59/100).

Should you choose the Motorola Edge 40 over the Redmi K90 Ultra?

The Motorola Edge 40 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.