AirPods

1st generation

Apple announced the first generation of AirPods on September 7, 2016, at an Apple Special Event alongside the iPhone 7 and Apple Watch Series 2. Apple originally planned to release the AirPods in late October,^[7] but delayed the release date.^[8] On December 13, 2016, Apple began taking online orders for AirPods. They were available at Apple Stores, Apple Authorized Resellers, and select carriers on December 20, 2016.^[9][10]

AirPods contain a proprietary Apple W1 SoC processor which helps optimize battery use as well as the Bluetooth 4.2 and audio connections. The advanced connectivity functions of the W1 requires devices running iOS 10, macOS Sierra, watchOS 3, or later.^[1] They can also function as standard Bluetooth headphones when connected to any device that supports Bluetooth 4.0 or higher, including Windows laptops and Android devices.^{[11][12][13][14]}

There are two microphones inside each AirPod, one facing outward at ear level and another at the bottom of the stem.^[15][16] Each AirPod weighs 0.14 oz (4.0 g), and its charging case weighs 1.34 oz (38 g). The AirPods are capable of holding a charge of around five hours. Charging them for fifteen minutes in the case gives three hours of listening time.^[16] The charging case provides 24 hours of total usage time.^[17] During a complete dismantling, each AirPod was found to contain a 93 milliwatt hour battery in its stem, while the charging case contains a 1.52 watt hour or 398 mAh at 3.81 V battery.^[18]

The model numbers for the first-generation AirPods are A1523 and A1722.^[19]

Production of the first-generation AirPods was discontinued on March 20, 2019, after the second generation was released.^[20]

2nd generation

Apple announced the second generation AirPods on March 20, 2019.^[21][22] They are the same design as the first generation, but have updated features.^[22] They include an H1 processor which supports hands-free "Hey Siri", Bluetooth 5 connectivity. Apple also claims 50% more talk time and faster device connection times.^[22] The "Announce Messages with Siri" feature was added in iOS 13.2, which allows the user to dictate text messages to Siri.^[23]

Second-generation AirPods can be purchased with the same charging case as the first generation, or in a higher-end configuration that comes bundled with the Wireless Charging Case, which can be used with Qi chargers. The Wireless Charging Case can be purchased separately and is compatible with first-generation AirPods. It moves the charging indicator LED to the exterior of the case.^[24] The Wireless Charging Case was initially announced in September 2017 alongside the AirPower charging mat, but was delayed by AirPower's protracted development and eventual cancellation.^[25] The second generation AirPods remained on sale with a price cut following the release of the third generation in October 2021, but only available with the Lightning charging case.

The model numbers for the second-generation AirPods are A2032 and A2031.^[19]

3rd generation

Apple announced the third generation AirPods on October 18, 2021. They feature an external redesign with shorter stems, similar to AirPods Pro, and use similar force-touch controls. They include support for spatial audio and Dolby Atmos, IPX4 water resistance, skin detection and a case supporting MagSafe charging. Apple claims increased battery life, with AirPods lasting six hours and the charging case providing up to 30 hours.^[26] Preorders of the third generation AirPods began on October 18, 2021. The third generation AirPods were released on October 26, 2021, and are priced at $179.^[27] In September 2022, Apple released a $169 variant with a charging case lacking Qi and MagSafe charging compatibility.^[28]

The model numbers for the third-generation AirPods are A2565 and A2564.^[29]

4th generation

Apple announced the AirPods 4 on September 9, 2024. They feature redesigned earbud contours and speakers, the H2 chip, Bluetooth 5.3, IP54 dust resistance, and a smaller charging case that supports USB-C charging. A higher-end version features active noise cancellation and a charging case with a speaker for Find My tracking and compatibility with Qi and Apple Watch chargers. The charging case no longer has magnets to mount on MagSafe chargers due to its smaller size.^[30]

Compatibility

AirPods are compatible with any device that supports Bluetooth 4.0 or higher, including Android and Windows devices, although certain features such as automatic switching between devices are only available on Apple devices using iCloud.^[12]

The first-generation AirPods are fully compatible with iPhone, iPad, and iPod touch models with iOS 10 or later, Apple Watch models with watchOS 3 or later, and Mac models with macOS Sierra or later.^[31]

The second-generation AirPods are fully compatible with devices running iOS 12.2 or later, macOS Mojave 10.14.4 or later, and watchOS 5.2 or later.^[32]

The third-generation AirPods are fully compatible with devices running iOS 15.1 or later, iPadOS 15.1 or later, macOS Monterey 12.0 or later, and watchOS 8.1 or later.^[33]

The AirPods 4 are fully compatible with devices running iOS 18 or later, iPadOS 18 or later, macOS Sequoia 15.0 or later, and watchOS 11 and later.

Support

The lithium-ion batteries in AirPods can see significant degradation over time, with two-year-old sets lasting for less than half of the advertised five hours.^[34][35] Apple has a program to service batteries and purchase replacement individual AirPods and charging cases. The replacement of one or both AirPods or the charging case has a lower price with AppleCare+ than without.^[36] Apple offers battery servicing for free with AppleCare+ and for a fee without. However, this is just a replacement service, as AirPods cannot be repaired without destroying their outer case, resulting in a 0/10 repairability score.^[36][37]

AirPods contain upgradeable firmware. Its original firmware was version 3.3.1. In February 2017, Apple released version 3.5.1,^[38] 3.7.2 in May 2017,^[39] and then 6.3.2 on March 26, 2019.^[40] In July 2019, version 6.7.8 was released and 6.8.8 followed in September 2019.^[3] In June 2020, firmware 2D15 was released (G2).^[41] In September 2020, firmware 3A283 (G2 and Pro) was released^[42] and in April 2021, firmware 3E751.^[43] AirPods automatically sync through Apple's iCloud service, allowing users to switch audio sources to other supported devices connected by the same Apple ID.^[44]

Criticism

AirPods have been criticized for their high price; however, at launch they were actually priced less than most "true wireless" earbuds on the market (e.g. the Samsung Gear IconX and Bragi Dash) and remain competitively priced with similar products from other major brands.^[69][70][71]

Since AirPods can easily be worn for long periods of time, AirPods have also had an effect on how people interact with each other. Having earphones in is generally perceived as a "do not disturb" signal, and some AirPods users use this fact to strategically avoid awkward small talk.^[72] But in the collaborative workplace, constant use of AirPods has sometimes been interpreted as a sign of disrespect to co-workers, causing conflict in the office.^[73]

Another prominent criticism was a problem that caused the charging case battery to deplete at a rapid rate despite the AirPods not being used. Users were reporting upwards of 30% idle discharge per day.^[74] In response, Apple released a firmware update (version 3.5.1) for the AirPods, which addressed connectivity and battery drain problems.^[75] Students and college professors from the George Washington University have commented that AirPods have decreased students' daily social interactions.^[76]

According to the Financial Times, AirPods are difficult if not impossible to recycle, and not designed to be repairable.^[77]

Replacement for hearing aids

In 2022, researchers at the Taipei Veterans General Hospital in Taiwan compared the performance of AirPods 2 and the original AirPods Pro using Live Listen on an iPhone or iPad to compare to medical hearing aids. Oticon Opn 1 was the high-end comparison, with Bernafon MD1 as the more affordable alternative. The performance of the systems was at least assisting participants with Pro (including noise canceling features) being better and approximating the hearing aids.^[78]