Headphone Product Library · Full specs
| Series | AirPods |
| Form | TWS |
| Driver Type | Dynamic |
| Weight | 4.7 g |
| Battery | 5/30 h |
| Bluetooth | 5.3 |
| Codecs | SBC,AAC |
| ANC | No |
| Microphone | Yes |
| Waterproof | IPX4 |
| Released | 2024 |
Acoustic specs
Spec comparison · relative to this model
| Product DB | Apple AirPods 4 ★ | Audio-Technica ATH-CKS50TW | Sony LinkBuds 2 | Soundcore Liberty 4 Pro |
|---|---|---|---|---|
| Driver | Dynamic | Dynamic | Dynamic | Dynamic |
| Impedance | — | — | — | — |
| Sensitivity | — | — | — | — |
| Frequency | — | — | — | — |
| Weight | 4.7 g | 5.7 g↑+1 | 5.5 g↑+0.8 | 6.1 g↑+1.4 |
| Battery | 5/30 h | 15/50 h↑+10 | 5.5/17 h↑+0.5 | 10/40 h↑+5 |
| ANC | No | No | No | Adaptive |
| Year | 2024 | 2022↓-2 | 2025↑+1 | 2024 |
| Price | $129 | $129 | $149↑+20$ | $129 |
↑↓ = difference vs the ★ model; lighter, longer battery and wider response are shown in green. “—” means the maker does not publish that figure.
Apple AirPods 4 is Apple’s true-wireless earbuds, released in 2024 at $129. The spec sheet lists dynamic、4.7 g、30 hours。Its value is not one dramatic number but where those specs land at this price.
1. Where it sits on the shelf
On this true-wireless earbuds shelf its price ranks 32th (45 models with a price), and 14th most expensive of the 18 models in the $100–200 band. At 4.7 g it ranks 8th lightest of the 40 models with weight data. The maker publishes neither impedance nor sensitivity — common in this form factor, so we compare only the checkable fields.
2. What the numbers change in daily use
Bluetooth 5.3 with SBC,AAC and no active noise cancelling. Rated battery is 5/30 hours including the charging case. There is no LDAC-class hi-res codec, so even Android cannot reach a high-bitrate path.At 2 hours of commuting a day that is roughly one charge every two weeks.
3. Fit, isolation and use cases
At 4.7 g it is on the light side for this form factor. In-ear tips give passive isolation, enough for commuting. No water-resistance rating is published, so sport and rain are out.
4. Head to head with its three closest rivals
The three closest rivals at this price are the Audio-Technica ATH-CKS50TW, Sony LinkBuds 2 and Soundcore Liberty 4 Pro. Audio-Technica ATH-CKS50TW ($129 (same price))：5.7 g、50 hours battery；Sony LinkBuds 2 ($149 ($20$ less))：5.5 g、17 hours battery；Soundcore Liberty 4 Pro ($129 (same price))：6.1 g、40 hours battery。
5. Weaknesses worth stating
- Price position: of the 18 models in the $100–200 band, 13 cost more and 2 cost less.
- Battery is not a strength: Audio-Technica ATH-CKS50TW（50 hours）、Soundcore Liberty 4 Pro（40 hours） all last longer than its 30 hours.
6. What to buy instead at the same price
- The direct rivals are the three models from section 4 (Audio-Technica ATH-CKS50TW、Sony LinkBuds 2、Soundcore Liberty 4 Pro) — which to pick depends on the spec you care about.
- Other checkable models in the $100–200 band: Soundcore Liberty 4 Pro（$129、6.1 g）、Audio-Technica ATH-CKS50TW（$129、5.7 g）、Sony WF-C700N（$119、4.6 g）.
7. Who it is for — and who it is not
- Long days out: a rated 30 hours.
- Long sessions: 4.7 g is on the light side for this form factor.
- Noisy places where you want ANC: this model has none, relying on passive isolation.
- Long days out: the Audio-Technica ATH-CKS50TW lasts 50 hours.
Data note: every claim comes from maker-published specs in our own product database and same-price comparisons (price, weight, impedance, sensitivity, frequency response, codecs and battery are checkable fields). No unmeasured listening impressions are included; unpublished figures show as “—” in the table.