Infinix Smart3 Plus vs Redmi K80 Ultra

The Infinix Smart3 Plus (2019) runs on the MediaTek Helio A22, while the Redmi K80 Ultra (2025) runs on the MediaTek Dimensity 9400+. By overall MobileRank rating, the Redmi K80 Ultra leads — 73/100 vs 18/100 (a 55-point difference). Key differences: the Redmi K80 Ultra has the bigger battery (7410 mAh vs 3500); the main camera is 13 MP vs 50 MP; the Redmi K80 Ultra is faster in AnTuTu (2,876,004 vs 155,362); the Redmi K80 Ultra has NFC for contactless payments, the Infinix Smart3 Plus doesn't; the Infinix Smart3 Plus is noticeably lighter (148g vs 219g).

The Redmi K80 Ultra significantly outperforms the Infinix Smart3 Plus by 55 points (73/100 vs 18/100).
Profile comparison
Category scores
Infinix Smart3 Plus
Performance 10
Display 39
Camera 10
Battery 15
Portability 85
Value for money
Redmi K80 Ultra
Performance 89
Display 94
Camera 37
Battery 86
Portability 40
Value for money 86
What makes Infinix Smart3 Plus better?
  • Lighter: 148g vs 219g

  • Better portability (85/100 vs 40/100)
What makes Redmi K80 Ultra better?
  • Higher AnTuTu: 2876004 vs 155362
  • Better Geekbench Single: 2729 vs 300
  • Better Geekbench Multi: 8430 vs 486
  • Bigger battery: 7410 vs 3500 mAh
  • Better main camera: 50MP vs 13MP

  • Higher performance (89/100 vs 10/100)
  • Better camera (37/100 vs 10/100)
  • Longer battery life (86/100 vs 15/100)
  • Better display (94/100 vs 39/100)
Comparison verdict

Comparing the Infinix Smart3 Plus vs the Redmi K80 Ultra, the Redmi K80 Ultra scores 55 points higher (73/100 vs 18/100). In the "performance" category, the Redmi K80 Ultra leads (89/100 vs 10/100). In the "camera" category, the Redmi K80 Ultra leads (37/100 vs 10/100). In the "battery" category, the Redmi K80 Ultra leads (86/100 vs 15/100). In the "performance" category, the Redmi K80 Ultra significantly outperforms the Infinix Smart3 Plus (89/100 vs 10/100). In the "display" category, the Redmi K80 Ultra significantly outperforms the Infinix Smart3 Plus (94/100 vs 39/100). In the "camera" category, the Redmi K80 Ultra notably outperforms the Infinix Smart3 Plus (37/100 vs 10/100). In the "battery" category, the Redmi K80 Ultra significantly outperforms the Infinix Smart3 Plus (86/100 vs 15/100). In the "portability" category, the Infinix Smart3 Plus significantly outperforms the Redmi K80 Ultra (85/100 vs 40/100).

Infinix Smart3 Plus: The Infinix Smart3 Plus is a better fit for everyday use.
Redmi K80 Ultra: The Redmi K80 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.
Specs comparison
Specification Infinix Smart3 Plus Redmi K80 Ultra
Processor MediaTek Helio A22 MediaTek Dimensity 9400+
AnTuTu 155362 2876004
Geekbench Single 300 2729
Geekbench Multi 486 8430
Display 6.2" LTPS IPS LCD 6.8" OLED
Resolution 720x1520 1280x2772
Refresh rate 144 Hz
Battery 3500 mAh 7410 mAh
Charging 100W
Main camera 13 MP 50 MP
Ultrawide 0 MP 8 MP
Front camera 8 MP 20 MP
RAM 3GB 12GB / 16GB
Storage 32GB 256GB / 512GB / 1TB
OS Android 9.0 (Pie) Android 15
Brightness (peak) 3200 nits
NFC no yes
Protection IP68
Dimensions 157.0×76.0×7.8 mm
Weight 148 g 219 g
Launch price $350
Camera comparison
Infinix Smart3 Plus
  • Main: 13MP f/f/1.8
  • Front: 8MP
10
camera
Redmi K80 Ultra
  • Main: 50MP f/f/1.9
  • Ultrawide: 8MP
  • Front: 20MP
37
camera
Display comparison
Infinix Smart3 Plus
  • 6.2" LTPS IPS LCD
  • Resolution: 720x1520
  • Refresh rate: —
39
display
Redmi K80 Ultra
  • 6.8" OLED
  • Resolution: 1280x2772
  • Refresh rate: 144 Hz
94
display
Battery and charging
Infinix Smart3 Plus
  • 3500 mAh
  • Wireless charging: no data
15
battery
Redmi K80 Ultra
  • 7410 mAh
  • Wired: 100W
  • Wireless charging: no data
86
battery
Overall performance score

We compared Infinix Smart3 Plus and Redmi K80 Ultra, covering their specs and all relevant benchmarks.

Infinix Smart3 Plus MediaTek Helio A22
18/100
155362 AnTuTu
Redmi K80 Ultra MediaTek Dimensity 9400+
73/100 +94.6%
2876004 AnTuTu

Redmi K80 Ultra leads Infinix Smart3 Plus by 94.6% in our overall performance rating.

Benchmarks
Launch prices and where to check today's
Infinix Smart3 Plus
Price unknown
Redmi K80 Ultra
$350
Detailed category analysis
performance

In the "performance" category, the Redmi K80 Ultra significantly outperforms the Infinix Smart3 Plus (89/100 vs 10/100).

display

In the "display" category, the Redmi K80 Ultra significantly outperforms the Infinix Smart3 Plus (94/100 vs 39/100).

camera

In the "camera" category, the Redmi K80 Ultra notably outperforms the Infinix Smart3 Plus (37/100 vs 10/100).

battery

In the "battery" category, the Redmi K80 Ultra significantly outperforms the Infinix Smart3 Plus (86/100 vs 15/100).

portability

In the "portability" category, the Infinix Smart3 Plus significantly outperforms the Redmi K80 Ultra (85/100 vs 40/100).

Frequently asked questions
Which is better: the Infinix Smart3 Plus or the Redmi K80 Ultra?

The Redmi K80 Ultra significantly outperforms the Infinix Smart3 Plus by 55 points (73/100 vs 18/100).

What is the rating of the Infinix Smart3 Plus and the Redmi K80 Ultra?

The Infinix Smart3 Plus has a MobileRank rating of 18/100, the Redmi K80 Ultra — 73/100.

Which has the better camera: the Infinix Smart3 Plus or the Redmi K80 Ultra?

The Redmi K80 Ultra leads on camera score (37/100 vs 10/100).

Which is more powerful: the Infinix Smart3 Plus or the Redmi K80 Ultra?

The Redmi K80 Ultra leads on performance (89/100 vs 10/100).

Should you choose the Infinix Smart3 Plus over the Redmi K80 Ultra?

The Infinix Smart3 Plus is a better fit for everyday use. The Redmi K80 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.