Oppo A78 4G vs Redmi K90 Pro Max

The Oppo A78 4G (2023) runs on the Qualcomm Snapdragon 680 4G, while the Redmi K90 Pro Max (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Redmi K90 Pro Max leads — 86/100 vs 42/100 (a 44-point difference). Key differences: the Redmi K90 Pro Max has the bigger battery (7560 mAh vs 5000); the Redmi K90 Pro Max is faster in AnTuTu (4,119,955 vs 421,228); the Oppo A78 4G is noticeably lighter (180g vs 210g).

The Redmi K90 Pro Max significantly outperforms the Oppo A78 4G by 44 points (86/100 vs 42/100).
Profile comparison
Category scores
Oppo A78 4G
Performance 31
Display 69
Camera 30
Battery 53
Portability 72
Value for money
Redmi K90 Pro Max
Performance 98
Display 81
Camera 78
Battery 89
Portability 54
Value for money 90
What makes Oppo A78 4G better?
  • Lighter: 180g vs 210g

  • Better portability (72/100 vs 54/100)
What makes Redmi K90 Pro Max better?
  • Higher AnTuTu: 4119955 vs 421228
  • Better Geekbench Single: 3640 vs 412
  • Better Geekbench Multi: 11033 vs 1410
  • Bigger battery: 7560 vs 5000 mAh
  • Faster charging: 100W vs 67W
  • Higher refresh rate: 120Hz vs 90Hz

  • Higher performance (98/100 vs 31/100)
  • Better camera (78/100 vs 30/100)
  • Longer battery life (89/100 vs 53/100)
  • Better display (81/100 vs 69/100)
Comparison verdict

Comparing the Oppo A78 4G vs the Redmi K90 Pro Max, the Redmi K90 Pro Max scores 44 points higher (86/100 vs 42/100). In the "performance" category, the Redmi K90 Pro Max leads (98/100 vs 31/100). In the "camera" category, the Redmi K90 Pro Max leads (78/100 vs 30/100). In the "battery" category, the Redmi K90 Pro Max leads (89/100 vs 53/100). In the "performance" category, the Redmi K90 Pro Max significantly outperforms the Oppo A78 4G (98/100 vs 31/100). In the "display" category, the Redmi K90 Pro Max is a bit better (81/100 vs 69/100). In the "camera" category, the Redmi K90 Pro Max significantly outperforms the Oppo A78 4G (78/100 vs 30/100). In the "battery" category, the Redmi K90 Pro Max significantly outperforms the Oppo A78 4G (89/100 vs 53/100). In the "portability" category, the Oppo A78 4G notably outperforms the Redmi K90 Pro Max (72/100 vs 54/100).

Oppo A78 4G: The Oppo A78 4G is a better fit for everyday use.
Redmi K90 Pro Max: The Redmi K90 Pro Max is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.
Specs comparison
Specification Oppo A78 4G Redmi K90 Pro Max
Processor Qualcomm Snapdragon 680 4G Qualcomm Snapdragon 8 Elite Gen 5
AnTuTu 421228 4119955
Geekbench Single 412 3640
Geekbench Multi 1410 11033
Display 6.4" AMOLED 6.9" OLED
Resolution 1080x2400 2608x1200
Refresh rate 90 Hz 120 Hz
Battery 5000 mAh 7560 mAh
Charging 67W 100W
Wireless charging 0W 50W
Main camera 50 MP 50 MP
Ultrawide 0 MP 50 MP
Telephoto 0 MP 50 MP
Front camera 8 MP 32 MP
RAM 8GB 16GB
Storage 128GB / 256GB 256GB / 512GB / 1TB
OS Android 13, ColorOS 13.1 Android 16
Brightness (peak) 430 nits 3500 nits
NFC yes yes
Protection IP54 IP68
Dimensions 160.0×73.2×7.9 mm 163.3×77.8×7.9 mm
Weight 180 g 210 g
Launch price $561
Camera comparison
Oppo A78 4G
  • Main: 50MP f/f/1.8
  • Front: 8MP
30
camera
Redmi K90 Pro Max
  • Main: 50MP f/f/1.88
  • Ultrawide: 50MP
  • Telephoto: 50MP
  • Front: 32MP
78
camera
Display comparison
Oppo A78 4G
  • 6.4" AMOLED
  • Resolution: 1080x2400
  • Refresh rate: 90 Hz
69
display
Redmi K90 Pro Max
  • 6.9" OLED
  • Resolution: 2608x1200
  • Refresh rate: 120 Hz
81
display
Battery and charging
Oppo A78 4G
  • 5000 mAh
  • Wired: 67W
  • No wireless charging
53
battery
Redmi K90 Pro Max
  • 7560 mAh
  • Wired: 100W
  • Wireless: 50W
89
battery
Overall performance score

We compared Oppo A78 4G and Redmi K90 Pro Max, covering their specs and all relevant benchmarks.

Oppo A78 4G Qualcomm Snapdragon 680 4G
42/100
421228 AnTuTu
Redmi K90 Pro Max Qualcomm Snapdragon 8 Elite Gen 5
86/100 +89.8%
4119955 AnTuTu

Redmi K90 Pro Max leads Oppo A78 4G by 89.8% in our overall performance rating.

Benchmarks
Launch prices and where to check today's
Oppo A78 4G
Price unknown
Redmi K90 Pro Max
$561
Detailed category analysis
performance

In the "performance" category, the Redmi K90 Pro Max significantly outperforms the Oppo A78 4G (98/100 vs 31/100).

display

In the "display" category, the Redmi K90 Pro Max is a bit better (81/100 vs 69/100).

camera

In the "camera" category, the Redmi K90 Pro Max significantly outperforms the Oppo A78 4G (78/100 vs 30/100).

battery

In the "battery" category, the Redmi K90 Pro Max significantly outperforms the Oppo A78 4G (89/100 vs 53/100).

portability

In the "portability" category, the Oppo A78 4G notably outperforms the Redmi K90 Pro Max (72/100 vs 54/100).

Frequently asked questions
Which is better: the Oppo A78 4G or the Redmi K90 Pro Max?

The Redmi K90 Pro Max significantly outperforms the Oppo A78 4G by 44 points (86/100 vs 42/100).

What is the rating of the Oppo A78 4G and the Redmi K90 Pro Max?

The Oppo A78 4G has a MobileRank rating of 42/100, the Redmi K90 Pro Max — 86/100.

Which has the better camera: the Oppo A78 4G or the Redmi K90 Pro Max?

The Redmi K90 Pro Max leads on camera score (78/100 vs 30/100).

Which is more powerful: the Oppo A78 4G or the Redmi K90 Pro Max?

The Redmi K90 Pro Max leads on performance (98/100 vs 31/100).

Should you choose the Oppo A78 4G over the Redmi K90 Pro Max?

The Oppo A78 4G is a better fit for everyday use. The Redmi K90 Pro Max is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.