Redmi Note 15 4G vs Vivo Y77 (China)

The Redmi Note 15 4G (2025) runs on the MediaTek Helio G100 Ultra, while the Vivo Y77 (China) (2022) runs on the MediaTek Dimensity 930. By overall MobileRank rating, the Redmi Note 15 4G leads — 37/100 vs 29/100 (a 8-point difference). Key differences: the Redmi Note 15 4G has the bigger battery (6000 mAh vs 4500); the main camera is 108 MP vs 50 MP; the Redmi Note 15 4G has NFC for contactless payments, the Vivo Y77 (China) doesn't.

The Redmi Note 15 4G edges out the Vivo Y77 (China) by just 8 points — the two devices are very close in overall level.
Profile comparison
Category scores
Redmi Note 15 4G
Performance 0
Display 100
Camera 40
Battery 48
Design 71
Value for money 96
Vivo Y77 (China)
Performance 0
Display 100
Camera 24
Battery 39
Design 57
Value for money 55
What makes Redmi Note 15 4G better?
  • Bigger battery: 6000 vs 4500 mAh
  • Better main camera: 108MP vs 50MP
  • Lighter: 183g vs 194g

  • Better camera (40/100 vs 24/100)
  • Longer battery life (48/100 vs 39/100)
  • Better design/ergonomics (71/100 vs 57/100)
  • Better value for money (96/100 vs 55/100)
What makes Vivo Y77 (China) better?
  • Faster charging: 80W vs 33W

  • Overall rating 29/100
Comparison verdict

Comparing the Redmi Note 15 4G vs the Vivo Y77 (China), the Redmi Note 15 4G scores 8 points higher (37/100 vs 29/100). In the "camera" category, the Redmi Note 15 4G leads (40/100 vs 24/100). In the "value for money" category, the Redmi Note 15 4G leads (96/100 vs 55/100). In the "performance" category, both devices are on the same level — 0/100. In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Redmi Note 15 4G notably outperforms the Vivo Y77 (China) (40/100 vs 24/100). In the "battery" category, the Redmi Note 15 4G is a bit better (48/100 vs 39/100). In the "design" category, the Redmi Note 15 4G is a bit better (71/100 vs 57/100). In the "value for money" category, the Redmi Note 15 4G significantly outperforms the Vivo Y77 (China) (96/100 vs 55/100).

Redmi Note 15 4G: The Redmi Note 15 4G is a better fit for budget-conscious buyers.
Vivo Y77 (China): The Vivo Y77 (China) is a better fit for everyday use.
Specs comparison
Specification Redmi Note 15 4G Vivo Y77 (China)
Processor MediaTek Helio G100 Ultra MediaTek Dimensity 930
AnTuTu 408000
Geekbench Single 760
Geekbench Multi 1890
Display 6.8" AMOLED 6.6" IPS LCD
Resolution 1080x2392 1080x2388
Refresh rate 120 Hz 120 Hz
Battery 6000 mAh 4500 mAh
Charging 33W 80W
Main camera 108 MP 50 MP
Front camera 20 MP 8 MP
RAM 6GB / 8GB 6GB / 8GB / 12GB
Storage 128GB / 256GB / 512GB 128GB / 256GB
OS Android 15, up to 4 major Android upgrades, HyperOS 2 Android 12, Origin OS Ocean
Brightness (peak) 3200 nits
NFC yes no
Protection IP64
Dimensions 164.0×75.4×7.9 mm 164.2×75.8×8.6 mm
Weight 183 g 194 g
Price $199
Camera comparison
Redmi Note 15 4G
  • Main: 108MP f/f/1.7
  • Front: 20MP
40
camera
Vivo Y77 (China)
  • Main: 50MP f/f/1.8
  • Front: 8MP
24
camera
Display comparison
Redmi Note 15 4G
  • 6.8" AMOLED
  • Resolution: 1080x2392
  • Refresh rate: 120 Hz
100
display
Vivo Y77 (China)
  • 6.6" IPS LCD
  • Resolution: 1080x2388
  • Refresh rate: 120 Hz
100
display
Battery and charging
Redmi Note 15 4G
  • 6000 mAh
  • Wired: 33W
  • No wireless charging
48
battery
Vivo Y77 (China)
  • 4500 mAh
  • Wired: 80W
  • No wireless charging
39
battery
Benchmarks
Price and availability
Redmi Note 15 4G
$199
Vivo Y77 (China)
Price unknown
Detailed category analysis
performance

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

display

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

camera

In the "camera" category, the Redmi Note 15 4G notably outperforms the Vivo Y77 (China) (40/100 vs 24/100).

battery

In the "battery" category, the Redmi Note 15 4G is a bit better (48/100 vs 39/100).

design

In the "design" category, the Redmi Note 15 4G is a bit better (71/100 vs 57/100).

value for money

In the "value for money" category, the Redmi Note 15 4G significantly outperforms the Vivo Y77 (China) (96/100 vs 55/100).

Frequently asked questions
Which is better: the Redmi Note 15 4G or the Vivo Y77 (China)?

The Redmi Note 15 4G edges out the Vivo Y77 (China) by just 8 points — the two devices are very close in overall level.

What is the rating of the Redmi Note 15 4G and the Vivo Y77 (China)?

The Redmi Note 15 4G has a MobileRank rating of 37/100, the Vivo Y77 (China) — 29/100.

Which has the better camera: the Redmi Note 15 4G or the Vivo Y77 (China)?

The Redmi Note 15 4G leads on camera score (40/100 vs 24/100).

Should you choose the Redmi Note 15 4G over the Vivo Y77 (China)?

The Redmi Note 15 4G is a better fit for budget-conscious buyers. The Vivo Y77 (China) is a better fit for everyday use.