Lecture Notes: Review of Apple's AirPods 4

Introduction

• Overview of the new AirPods 4
• Key features:
  • Active Noise Cancellation (ANC) without rubber seal
  • H2 chip for improved audio and features
  • New ergonomic design for better fit

Comparison with Other AirPods Models

• AirPods 2 & 3:
  • AirPods 3 had a more bulbous design but less comfort
  • AirPods 4 improves comfort akin to AirPods 1 & 2
• AirPods Pro 2:
  • Best sound due to rubber seals
  • AirPods 4 offers a good compromise without the seal

Design and Fit

• New shape with better comfort
• Fit similar to early models but with improved audio quality
• Design improvements from 3D imaging and ear scanning

Charging Case

• Smaller, USB-C charging capability
• Invisible light indicator and buttonless design
• Lacks MagSafe magnetic charging
• Includes a speaker for locating the case

Audio Quality

• AirPods 4 offers good sound quality without rubber seals
• Improved bass compared to AirPods 3
• Not as robust as AirPods Pro 2 in lower frequencies

Active Noise Cancellation (ANC)

• Surprisingly effective ANC without rubber seals
• Better at muting low-frequency noise
• Higher frequency noise cancellation still better on AirPods Pro 2

Microphone Quality

• Testing across all models:
  • AirPods 2: Older, decent quality
  • AirPods 3: Slight improvement with H1 chip
  • AirPods 4: Improved with H2 chip
  • AirPods Pro 2: Best microphone quality

Features

• Force touch controls similar to AirPods Pro 2
• Lacks volume controls

Pricing

• AirPods 4 priced higher than many competitors
• Premium due to Apple brand and seamless connectivity
• Better fit and sound quality justify the price for some users

Conclusion

• AirPods 4 provides a balanced option between AirPods 3 and Pro 2
• Fit improvement could be significant for long-term use
• Recommended for users favoring comfort and sound without rubber seals

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• Personal opinion: AirPods 4 offers best fit and sound compromise for extended use.