Apple AirPods 4 ワイヤレスイヤホン、Bluetooth5.3、パーソナライズされた空間オーディオ、耐汗耐水性能、USB-C 充電ケース、H2 チップ、最大 30 時間の バッテリー駆動時間、iPhoneで簡単に設定

The Apple AirPods 4 represent a significant redesign of Apple's popular wireless earbuds, bringing improved comfort, better audio quality, and a host of smart features powered by the H2 chip. Currently available on Amazon.co.jp for ¥21,800, they offer a compelling package for users embedded in the Apple ecosystem. **Design and Comfort** The most immediately noticeable change is the redesigned silhouette. Apple has shortened the stem and refined the overall shape, resulting in a more compact and modern look. The company claims improved stability and all-day comfort, which is a welcome upgrade for users who wear their earbuds for extended periods. The charging case has also been slimmed down, with Apple stating it's over 10% smaller in volume compared to the previous generation. The switch to USB-C charging is a practical improvement, allowing users to share cables with their iPhone 15/16, MacBook, and iPad. **Sound Quality and Call Performance** At the heart of the AirPods 4 is Apple's H2 chip, which powers advanced computational audio processing. Personalized Spatial Audio with dynamic head tracking creates an immersive, cinema-like listening experience for music, TV shows, movies, and games. For calls, the "Voice Isolation" feature is particularly noteworthy — it uses sophisticated processing to reduce ambient noise and isolate your voice, ensuring clear communication even in noisy environments. **Smart Features** The AirPods 4 are packed with intelligent functionality. Siri integration allows hands-free control for playing music, making calls, and checking schedules. A particularly innovative addition is the ability to respond to Siri by simply nodding for "yes" or shaking your head for "no." Pairing is effortless with Apple devices — just place the AirPods near your device and tap "Connect." Optical in-ear sensors detect when you're wearing them, automatically playing and pausing audio accordingly. The Find My app support for both the earbuds and the charging case adds peace of mind. Bluetooth 5.3 ensures a stable and efficient wireless connection. **Battery Life and Durability** Battery performance is solid, with up to 5 hours of listening on a single charge and up to 30 hours total with the charging case. This should comfortably cover several days of typical use. The IP54 dust and water resistance rating — applied to both the earbuds and the charging case — means you can confidently use them during intense workouts or in light rain without worry. **Verdict** The AirPods 4 deliver meaningful improvements across comfort, audio quality, smart features, and durability. The redesigned form factor, H2 chip performance, IP54 rating, and USB-C charging case make them a well-rounded upgrade. However, as an open-ear design without active noise cancellation, they won't block out ambient sound as effectively as the AirPods Pro models. For Apple users seeking comfortable, feature-rich everyday wireless earbuds with seamless ecosystem integration, the AirPods 4 are an excellent choice.