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Oraimo AirBuds 4 specifications and in-depth review

Oraimo AirBuds 4

Manufacturer: Oraimo

The Oraimo AirBuds 4 are true wireless in-ear earbuds built for everyday use without the hassle of cables. They carry an IPX4 sweat-resistance rating, making them a practical choice for active wear, and come with stereo speakers alongside a charging case that extends total playback time well beyond a single charge. A travel bag is included in the box, and the earbuds feature voice prompts and a control panel placed directly on the device for straightforward operation.

On the technical side, the AirBuds 4 run on Bluetooth 5.3 with a maximum wireless range of 10 meters and connect via USB Type-C for wired charging, with fast charging supported and a full charge taking around 1.5 hours. The earbuds themselves offer up to 7 hours of playback, while the charging case brings the total to 31 hours. A quad-microphone setup with noise-canceling mic technology handles calls and voice input, and passive noise reduction is built in through the in-ear fit. The 6 mm drivers cover a frequency range of 20 Hz to 20,000 Hz, and a mute function along with headset capability rounds out the feature set.

Pros
  • The charging case extends total playback to 31 hours, reducing how often the case itself needs to be recharged
  • Fast charging support means less time waiting for the earbuds to be ready for use
  • A four-microphone array with noise-canceling mic technology helps maintain clearer voice capture during calls
  • The on-earbud control panel allows playback and call management without reaching for a paired device
  • A travel bag is included, providing a convenient way to store and carry the earbuds
  • IPX4 sweat resistance makes them suitable for use during physical activity
Cons
  • No active noise cancellation, so audio isolation depends entirely on the passive seal of the in-ear fit
  • Wireless charging is not supported, requiring a wired connection every time the case needs to be charged
  • No fast pairing support, which can make the initial connection process slightly less convenient
  • Bluetooth range is limited to 10 meters, restricting movement distance from the paired device
  • No ambient sound mode, meaning there is no way to let in environmental audio without removing the earbuds
  • None of the aptX codec variants or AAC are supported, limiting advanced audio transmission options
Who is this for?

These earbuds are a practical fit for users who prioritize everyday wireless convenience and hands-free calling, thanks to the four-microphone setup with noise-canceling mic technology and on-device control panel. The IPX4 sweat resistance makes them a reasonable choice for light workouts and commutes, and the combined 31-hour battery life between the earbuds and case suits users who need extended use across multiple days without frequent recharging. The inclusion of a travel bag and fast charging support further suits those who are regularly on the move.

Who is this NOT for?

Users who require active noise cancellation for focused listening in loud environments will find these earbuds lacking, as isolation relies entirely on the passive in-ear seal. Audio enthusiasts seeking high-fidelity wireless transmission will also be underserved, since none of the advanced codecs — including aptX variants, LDAC, LDHC, or AAC — are supported, leaving only standard Bluetooth audio. Additionally, those who prefer the convenience of wireless charging or seamless fast pairing with their devices will need to look elsewhere, as neither feature is available on this model.

Design:

Fit In-ear
Ingress Protection (IP) rating IPX4
water resistance Sweat resistant
has no wires or cables ✓
are neckband earbuds ✕
wingtips included ✕
has stereo speakers ✓
Has a display ✓

The Oraimo AirBuds 4 adopt a true wireless, in-ear design with no cables or neckband, and wingtips are not included. They carry an IPX4 ingress protection rating, meaning they handle sweat and light moisture without issue. The earbuds feature stereo speakers and include a display, rounding out a compact, wire-free form factor suited to daily use.

Sound quality:

has active noise cancellation (ANC) ✕
has passive noise reduction ✓
driver unit size 6 mm
lowest frequency 20 Hz
highest frequency 20000 Hz
has a neodymium magnet ✕

The AirBuds 4 use 6 mm driver units and cover a frequency range of 20 Hz to 20,000 Hz, spanning the full extent of standard audible frequencies. Passive noise reduction is built in through the in-ear fit, helping to block out ambient sound without active noise cancellation, which is not supported. The drivers do not use a neodymium magnet.

Power:

Battery life 7 hours
Battery life of charging case 31 hours
charge time 1.5 hours
has wireless charging ✕
has a battery level indicator ✓
has a rechargeable battery ✓

The AirBuds 4 offer 7 hours of battery life per charge, with the included charging case extending the total to 31 hours. The rechargeable battery reaches a full charge in 1.5 hours, and wireless charging is not supported, so a wired connection is required. A battery level indicator is built in, allowing users to keep track of remaining power at a glance.

Connectivity:

has fast pairing ✕
Has USB Type-C ✓
Bluetooth version 5.3
has LDAC ✕
has LDHC ✕
has aptX Adaptive ✕
has aptX Low Latency ✕
has aptX HD ✕
has aptX ✕
has aptX Lossless ✕
has aptX Voice ✕
maximum Bluetooth range 10 m
supports Bluetooth pairing using NFC ✕
Can be used wirelessly ✓
has AAC ✕

The AirBuds 4 connect wirelessly via Bluetooth 5.3 with a maximum range of 10 meters, and USB Type-C is used for wired charging. Fast pairing and NFC pairing are not supported, and the earbuds do not include any aptX variants (including aptX, aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, or aptX Voice), nor do they support LDAC, LDHC, or the AAC codec.

Features:

has ambient sound mode ✕
has in/on-ear detection ✕
has find device feature ✕
Supports fast charging ✓
has a mute function ✓
can be used as a headset ✓
control panel placed on a device ✓
Has voice prompts ✓
travel bag is included ✓
Has an in-line control panel ✕
Has a temperature sensor ✕

The AirBuds 4 support fast charging and can function as a headset, with controls handled through a panel placed directly on the earbuds rather than an in-line control panel. Voice prompts are included for audio feedback, and a mute function is available during calls or use. A travel bag is included in the box for storage and portability. Ambient sound mode, in/on-ear detection, a find device feature, and a body temperature sensor are all absent from this model.

Microphone:

number of microphones 4
has a noise-canceling microphone ✓

The AirBuds 4 are equipped with a quad-microphone setup, and noise-canceling microphone technology is included to help reduce unwanted background sound during calls and voice input.

Final Verdict

The Oraimo AirBuds 4 present a straightforward set of true wireless earbuds built around practical everyday use rather than audiophile-grade performance. Their 31-hour combined battery life with fast charging support stands out as the most compelling aspect of the package, complemented by a quad-microphone system that addresses call quality adequately. The absence of active noise cancellation and advanced audio codecs does narrow the audience, making these earbuds best suited to users whose priorities lean toward reliable wireless connectivity, sweat resistance, and all-day battery endurance rather than premium sound reproduction or deep noise isolation. For that intended use case, the AirBuds 4 deliver a functionally complete experience without overreaching their specification set.

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