Samsung Galaxy A51 vs Vivo iQOO Z9 (India)

The Samsung Galaxy A51 (2020) runs on the Exynos 9611, while the Vivo iQOO Z9 (India) (2024) runs on the MediaTek Dimensity 7200. By overall MobileRank rating, the Vivo iQOO Z9 (India) leads — 30/100 vs 18/100 (a 12-point difference). Key differences: the Vivo iQOO Z9 (India) has the bigger battery (5000 mAh vs 4000); the main camera is 48 MP vs 50 MP; the Samsung Galaxy A51 has NFC for contactless payments, the Vivo iQOO Z9 (India) doesn't; the Samsung Galaxy A51 is noticeably lighter (172g vs 188g).

The Vivo iQOO Z9 (India) is noticeably better than the Samsung Galaxy A51 — the overall rating gap is 12 points.
Profile comparison
Category scores
Samsung Galaxy A51
Performance 0
Display 0
Camera 32
Battery 12
Design 85
Value for money 82
Vivo iQOO Z9 (India)
Performance 0
Display 100
Camera 27
Battery 42
Design 65
Value for money 55
What makes Samsung Galaxy A51 better?
  • Lighter: 172g vs 188g

  • Better camera (32/100 vs 27/100)
  • Better design/ergonomics (85/100 vs 65/100)
  • Better value for money (82/100 vs 55/100)
What makes Vivo iQOO Z9 (India) better?
  • Bigger battery: 5000 vs 4000 mAh
  • Better main camera: 50MP vs 48MP
  • Higher refresh rate: 120Hz vs 60Hz

  • Longer battery life (42/100 vs 12/100)
  • Better display (100/100 vs 0/100)
Comparison verdict

Comparing the Samsung Galaxy A51 vs the Vivo iQOO Z9 (India), the Vivo iQOO Z9 (India) scores 12 points higher (30/100 vs 18/100). In the "battery" category, the Vivo iQOO Z9 (India) leads (42/100 vs 12/100). In the "value for money" category, the Samsung Galaxy A51 leads (82/100 vs 55/100). In the "performance" category, both devices are on the same level — 0/100. In the "display" category, the Vivo iQOO Z9 (India) significantly outperforms the Samsung Galaxy A51 (100/100 vs 0/100). In the "camera" category, the Samsung Galaxy A51 is a bit better (32/100 vs 27/100). In the "battery" category, the Vivo iQOO Z9 (India) significantly outperforms the Samsung Galaxy A51 (42/100 vs 12/100). In the "design" category, the Samsung Galaxy A51 notably outperforms the Vivo iQOO Z9 (India) (85/100 vs 65/100). In the "value for money" category, the Samsung Galaxy A51 notably outperforms the Vivo iQOO Z9 (India) (82/100 vs 55/100).

Samsung Galaxy A51: The Samsung Galaxy A51 is a better fit for budget-conscious buyers.
Vivo iQOO Z9 (India): The Vivo iQOO Z9 (India) is a better fit for everyday use.
Specs comparison
Specification Samsung Galaxy A51 Vivo iQOO Z9 (India)
Processor Exynos 9611 MediaTek Dimensity 7200
AnTuTu 355351
Geekbench Single 365
Geekbench Multi 1107
Display 6.5" AMOLED 6.7" AMOLED
Resolution 1080x2400
Refresh rate 60 Hz 120 Hz
Battery 4000 mAh 5000 mAh
Charging 44W
Main camera 48 MP 50 MP
Front camera 32 MP 16 MP
RAM 4GB / 6GB 8GB
Storage 64GB / 128GB 128GB / 256GB
OS Android 14, Funtouch 14
Brightness (peak) 1800 nits
NFC yes no
Protection IP54
Dimensions 158.5×73.6×7.9 mm 163.2×75.8×7.8 mm
Weight 172 g 188 g
Price $399
Camera comparison
Samsung Galaxy A51
  • Main: 48MP
  • Front: 32MP
32
camera
Vivo iQOO Z9 (India)
  • Main: 50MP f/f/1.8
  • Front: 16MP
27
camera
Display comparison
Samsung Galaxy A51
  • 6.5" AMOLED
  • Refresh rate: 60 Hz
0
display
Vivo iQOO Z9 (India)
  • 6.7" AMOLED
  • Resolution: 1080x2400
  • Refresh rate: 120 Hz
100
display
Battery and charging
Samsung Galaxy A51
  • 4000 mAh
  • No wireless charging
12
battery
Vivo iQOO Z9 (India)
  • 5000 mAh
  • Wired: 44W
  • No wireless charging
42
battery
Benchmarks
Price and availability
Samsung Galaxy A51
$399
Vivo iQOO Z9 (India)
Price unknown
Detailed category analysis
performance

In the "performance" category, both devices are on the same level — 0/100.

display

In the "display" category, the Vivo iQOO Z9 (India) significantly outperforms the Samsung Galaxy A51 (100/100 vs 0/100).

camera

In the "camera" category, the Samsung Galaxy A51 is a bit better (32/100 vs 27/100).

battery

In the "battery" category, the Vivo iQOO Z9 (India) significantly outperforms the Samsung Galaxy A51 (42/100 vs 12/100).

design

In the "design" category, the Samsung Galaxy A51 notably outperforms the Vivo iQOO Z9 (India) (85/100 vs 65/100).

value for money

In the "value for money" category, the Samsung Galaxy A51 notably outperforms the Vivo iQOO Z9 (India) (82/100 vs 55/100).

Frequently asked questions
Which is better: the Samsung Galaxy A51 or the Vivo iQOO Z9 (India)?

The Vivo iQOO Z9 (India) is noticeably better than the Samsung Galaxy A51 — the overall rating gap is 12 points.

What is the rating of the Samsung Galaxy A51 and the Vivo iQOO Z9 (India)?

The Samsung Galaxy A51 has a MobileRank rating of 18/100, the Vivo iQOO Z9 (India) — 30/100.

Which has the better camera: the Samsung Galaxy A51 or the Vivo iQOO Z9 (India)?

The Samsung Galaxy A51 leads on camera score (32/100 vs 27/100).

Should you choose the Samsung Galaxy A51 over the Vivo iQOO Z9 (India)?

The Samsung Galaxy A51 is a better fit for budget-conscious buyers. The Vivo iQOO Z9 (India) is a better fit for everyday use.