Redmi Note 15 4G vs Vivo iQOO Z7

The Redmi Note 15 4G (2025) runs on the MediaTek Helio G100 Ultra, while the Vivo iQOO Z7 (2023) runs on the MediaTek Dimensity 920. By overall MobileRank rating, the Redmi Note 15 4G leads — 37/100 vs 26/100 (a 11-point difference). Key differences: the Redmi Note 15 4G has the bigger battery (6000 mAh vs 4500); the main camera is 108 MP vs 64 MP; the Redmi Note 15 4G has NFC for contactless payments, the Vivo iQOO Z7 doesn't.

The Redmi Note 15 4G is noticeably better than the Vivo iQOO Z7 — the overall rating gap is 11 points.
Profile comparison
Category scores
Redmi Note 15 4G
Performance 0
Display 100
Camera 40
Battery 48
Design 71
Value for money 96
Vivo iQOO Z7
Performance 0
Display 50
Camera 37
Battery 30
Design 83
Value for money 55
What makes Redmi Note 15 4G better?
  • Bigger battery: 6000 vs 4500 mAh
  • Better main camera: 108MP vs 64MP
  • Higher refresh rate: 120Hz vs 90Hz

  • Better camera (40/100 vs 37/100)
  • Longer battery life (48/100 vs 30/100)
  • Better display (100/100 vs 50/100)
  • Better value for money (96/100 vs 55/100)
What makes Vivo iQOO Z7 better?
  • Faster charging: 44W vs 33W
  • Lighter: 173g vs 183g

  • Better design/ergonomics (83/100 vs 71/100)
Comparison verdict

Comparing the Redmi Note 15 4G vs the Vivo iQOO Z7, the Redmi Note 15 4G scores 11 points higher (37/100 vs 26/100). In the "battery" category, the Redmi Note 15 4G leads (48/100 vs 30/100). 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, the Redmi Note 15 4G significantly outperforms the Vivo iQOO Z7 (100/100 vs 50/100). In the "camera" category, the Redmi Note 15 4G and the Vivo iQOO Z7 are nearly equal (40/100 vs 37/100). In the "battery" category, the Redmi Note 15 4G notably outperforms the Vivo iQOO Z7 (48/100 vs 30/100). In the "design" category, the Vivo iQOO Z7 is a bit better (83/100 vs 71/100). In the "value for money" category, the Redmi Note 15 4G significantly outperforms the Vivo iQOO Z7 (96/100 vs 55/100).

Redmi Note 15 4G: The Redmi Note 15 4G is a better fit for budget-conscious buyers.
Vivo iQOO Z7: The Vivo iQOO Z7 is a better fit for everyday use.
Specs comparison
Specification Redmi Note 15 4G Vivo iQOO Z7
Processor MediaTek Helio G100 Ultra MediaTek Dimensity 920
AnTuTu 408000
Geekbench Single 760
Geekbench Multi 1890
Display 6.8" AMOLED 6.4" AMOLED
Resolution 1080x2392 1080x2400
Refresh rate 120 Hz 90 Hz
Battery 6000 mAh 4500 mAh
Charging 33W 44W
Main camera 108 MP 64 MP
Front camera 20 MP 16 MP
RAM 6GB / 8GB 6GB / 8GB
Storage 128GB / 256GB / 512GB 128GB
OS Android 15, up to 4 major Android upgrades, HyperOS 2 Android 13, Funtouch 13
Brightness (peak) 3200 nits 1300 nits
NFC yes no
Protection IP64 IP54
Dimensions 164.0×75.4×7.9 mm 158.9×73.5×7.8 mm
Weight 183 g 173 g
Price $199
Camera comparison
Redmi Note 15 4G
  • Main: 108MP f/f/1.7
  • Front: 20MP
40
camera
Vivo iQOO Z7
  • Main: 64MP
  • Front: 16MP
37
camera
Display comparison
Redmi Note 15 4G
  • 6.8" AMOLED
  • Resolution: 1080x2392
  • Refresh rate: 120 Hz
100
display
Vivo iQOO Z7
  • 6.4" AMOLED
  • Resolution: 1080x2400
  • Refresh rate: 90 Hz
50
display
Battery and charging
Redmi Note 15 4G
  • 6000 mAh
  • Wired: 33W
  • No wireless charging
48
battery
Vivo iQOO Z7
  • 4500 mAh
  • Wired: 44W
  • No wireless charging
30
battery
Benchmarks
Price and availability
Redmi Note 15 4G
$199
Vivo iQOO Z7
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 Redmi Note 15 4G significantly outperforms the Vivo iQOO Z7 (100/100 vs 50/100).

camera

In the "camera" category, the Redmi Note 15 4G and the Vivo iQOO Z7 are nearly equal (40/100 vs 37/100).

battery

In the "battery" category, the Redmi Note 15 4G notably outperforms the Vivo iQOO Z7 (48/100 vs 30/100).

design

In the "design" category, the Vivo iQOO Z7 is a bit better (83/100 vs 71/100).

value for money

In the "value for money" category, the Redmi Note 15 4G significantly outperforms the Vivo iQOO Z7 (96/100 vs 55/100).

Frequently asked questions
Which is better: the Redmi Note 15 4G or the Vivo iQOO Z7?

The Redmi Note 15 4G is noticeably better than the Vivo iQOO Z7 — the overall rating gap is 11 points.

What is the rating of the Redmi Note 15 4G and the Vivo iQOO Z7?

The Redmi Note 15 4G has a MobileRank rating of 37/100, the Vivo iQOO Z7 — 26/100.

Should you choose the Redmi Note 15 4G over the Vivo iQOO Z7?

The Redmi Note 15 4G is a better fit for budget-conscious buyers. The Vivo iQOO Z7 is a better fit for everyday use.