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

## Apple AirPods 4 Review: A Refined Redesign with Impressive Features The Apple AirPods 4 represent a significant evolution in Apple's open-ear wireless earbuds lineup. Featuring a completely redesigned form factor, the H2 chip, and a host of smart features, these earbuds aim to deliver a premium listening experience for Apple ecosystem users. ### Design and Comfort The AirPods 4 have been redesigned from the ground up with comfort as a priority. The silhouette has been refined with a shorter stem, resulting in a more streamlined and modern appearance. Apple claims these are comfortable enough for all-day wear with improved stability. The charging case has also been redesigned, now over 10% smaller by volume compared to the previous generation, making it even more pocket-friendly. ### Sound Quality and the H2 Chip Powered by Apple's H2 chip, the AirPods 4 deliver advanced computational audio for superior sound quality. One of the standout features is Personalized Spatial Audio with dynamic head tracking, which places sound all around you for an immersive, cinema-like experience when listening to music, watching TV shows and movies, or gaming. Call quality has also been significantly improved thanks to the Voice Isolation feature. This technology reduces ambient noise and isolates your voice, ensuring crystal-clear communication even in noisy environments — a valuable feature for professionals and commuters alike. ### Smart Features The AirPods 4 are packed with intelligent features that showcase Apple's ecosystem integration. Siri can be activated hands-free with "Hey Siri," and a new head gesture feature allows you to nod for "yes" or shake your head for "no" to respond to Siri prompts. Pairing is effortless — simply place the AirPods near your device and tap "Connect." The optical in-ear sensors intelligently detect when you're wearing the earbuds, automatically playing audio when inserted and pausing when removed. You can also share audio with a second pair of AirPods for a shared listening experience, and the Find My app can locate both the earbuds and the charging case. ### Battery Life and Durability Battery life is solid, offering up to 5 hours of listening on a single charge, extending to a total of 30 hours with the USB-C charging case. The switch to USB-C is a welcome change, allowing users to consolidate their charging cables across Apple devices. The AirPods 4 and their charging case carry an IP54 rating for dust and water resistance, making them suitable for intense workouts, jogging in the rain, and everyday use in various weather conditions. ### Connectivity With Bluetooth 5.3, the AirPods 4 offer improved connection stability and energy efficiency, ensuring a reliable wireless experience. ### Verdict The Apple AirPods 4 are a well-rounded upgrade that brings meaningful improvements in comfort, sound quality, smart features, and durability. Currently available on Amazon.co.jp for ¥21,800, they offer compelling value for anyone invested in the Apple ecosystem. However, as open-ear earbuds, they lack active noise cancellation, which may be a consideration for those who need strong noise isolation — in that case, the AirPods Pro line may be more suitable. For everyone else, the AirPods 4 deliver an excellent blend of convenience, quality, and Apple's signature seamless experience.