Realme C51 vs Xiaomi 18 Pro Max

The Realme C51 (2023) runs on the Unisoc Tiger T612, while the Xiaomi 18 Pro Max (2026) runs on the Qualcomm Snapdragon 8 Elite Extreme Gen 6. By overall MobileRank rating, the Xiaomi 18 Pro Max leads — 92/100 vs 31/100 (a 61-point difference). Key differences: the Xiaomi 18 Pro Max has the bigger battery (8500 mAh vs 5000); the main camera is 50 MP vs 200 MP; the Realme C51 is noticeably lighter (186g vs 235g).

The Xiaomi 18 Pro Max significantly outperforms the Realme C51 by 61 points (92/100 vs 31/100).

Profile comparison

Category scores

Realme C51

Performance 16
Display 43
Camera 30
Battery 46
Portability 67
Value for money —

Xiaomi 18 Pro Max

Performance 100
Display 82
Camera 100
Battery 92
Portability 33
Value for money 96

What makes Realme C51 better?

  • Lighter: 186g vs 235g

  • Better portability (67/100 vs 33/100)

What makes Xiaomi 18 Pro Max better?

  • Better Geekbench Single: 4327 vs 360
  • Better Geekbench Multi: 12873 vs 1250
  • Bigger battery: 8500 vs 5000 mAh
  • Faster charging: 100W vs 33W
  • Better main camera: 200MP vs 50MP
  • Higher refresh rate: 120Hz vs 90Hz

  • Higher performance (100/100 vs 16/100)
  • Better camera (100/100 vs 30/100)
  • Longer battery life (92/100 vs 46/100)
  • Better display (82/100 vs 43/100)

Comparison verdict

Comparing the Realme C51 vs the Xiaomi 18 Pro Max, the Xiaomi 18 Pro Max scores 61 points higher (92/100 vs 31/100). In the "performance" category, the Xiaomi 18 Pro Max leads (100/100 vs 16/100). In the "camera" category, the Xiaomi 18 Pro Max leads (100/100 vs 30/100). In the "battery" category, the Xiaomi 18 Pro Max leads (92/100 vs 46/100). In the "performance" category, the Xiaomi 18 Pro Max significantly outperforms the Realme C51 (100/100 vs 16/100). In the "display" category, the Xiaomi 18 Pro Max significantly outperforms the Realme C51 (82/100 vs 43/100). In the "camera" category, the Xiaomi 18 Pro Max significantly outperforms the Realme C51 (100/100 vs 30/100). In the "battery" category, the Xiaomi 18 Pro Max significantly outperforms the Realme C51 (92/100 vs 46/100). In the "portability" category, the Realme C51 significantly outperforms the Xiaomi 18 Pro Max (67/100 vs 33/100).

Xiaomi 18 Pro Max: The Xiaomi 18 Pro Max is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.

Specs comparison

Specification Realme C51 Xiaomi 18 Pro Max
Processor Unisoc Tiger T612 Qualcomm Snapdragon 8 Elite Extreme Gen 6
AnTuTu — 5001234
Geekbench Single 360 4327
Geekbench Multi 1250 12873
Display 6.7" IPS LCD 6.9" LTPO AMOLED
Resolution 720x1600 1208x2624
Refresh rate 90 Hz 120 Hz
Battery 5000 mAh 8500 mAh
Charging 33W 100W
Wireless charging 0W 50W
Main camera 50 MP 200 MP
Ultrawide 0 MP 50 MP
Telephoto 0 MP 200 MP
Front camera 5 MP 50 MP
RAM 4GB 12GB / 16GB
Storage 64GB / 128GB 256GB / 512GB / 1TB
OS Android 13, Realme UI T Android 17
Brightness (peak) 560 nits 4000 nits
NFC yes yes
Protection — IP68/IP69
Dimensions 167.2×76.7×8.0 mm 163.4×77.6×8.4 mm
Weight 186 g 235 g
Launch price — $986

Camera comparison

Realme C51

  • Main: 50MP f/1.8
  • Front: 5MP
30
camera

Xiaomi 18 Pro Max

  • Main: 200MP f/1.7
  • Ultrawide: 50MP
  • Telephoto: 200MP
  • Front: 50MP
100
camera

Display comparison

Realme C51

  • 6.7" IPS LCD
  • Resolution: 720x1600
  • Refresh rate: 90 Hz
43
display

Xiaomi 18 Pro Max

  • 6.9" LTPO AMOLED
  • Resolution: 1208x2624
  • Refresh rate: 120 Hz
82
display

Battery and charging

Realme C51

  • 5000 mAh
  • Wired: 33W
  • No wireless charging
46
battery

Xiaomi 18 Pro Max

  • 8500 mAh
  • Wired: 100W
  • Wireless: 50W
92
battery

Benchmarks

Launch prices and where to check today's

Realme C51

Price unknown

Xiaomi 18 Pro Max

$986

Detailed category analysis

performance

In the "performance" category, the Xiaomi 18 Pro Max significantly outperforms the Realme C51 (100/100 vs 16/100).

display

In the "display" category, the Xiaomi 18 Pro Max significantly outperforms the Realme C51 (82/100 vs 43/100).

camera

In the "camera" category, the Xiaomi 18 Pro Max significantly outperforms the Realme C51 (100/100 vs 30/100).

battery

In the "battery" category, the Xiaomi 18 Pro Max significantly outperforms the Realme C51 (92/100 vs 46/100).

portability

In the "portability" category, the Realme C51 significantly outperforms the Xiaomi 18 Pro Max (67/100 vs 33/100).

Frequently asked questions

Which is better: the Realme C51 or the Xiaomi 18 Pro Max?

The Xiaomi 18 Pro Max significantly outperforms the Realme C51 by 61 points (92/100 vs 31/100).

What is the rating of the Realme C51 and the Xiaomi 18 Pro Max?

The Realme C51 has a MobileRank rating of 31/100, the Xiaomi 18 Pro Max — 92/100.

Which has the better camera: the Realme C51 or the Xiaomi 18 Pro Max?

The Xiaomi 18 Pro Max leads on camera score (100/100 vs 30/100).

Which is more powerful: the Realme C51 or the Xiaomi 18 Pro Max?

The Xiaomi 18 Pro Max leads on performance (100/100 vs 16/100).

Should you choose the Realme C51 over the Xiaomi 18 Pro Max?

The Xiaomi 18 Pro Max is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.