OnePlus Buds 4
Realme Buds Air 7 Pro

OnePlus Buds 4 Realme Buds Air 7 Pro

Common Features

  • Both products have in-ear fit.
  • Both products have an IP55 rating for water resistance.
  • Both products are wireless.
  • Both products are not neckband earbuds.
  • Both products do not include wingtips.
  • Both products do not have RGB lighting.
  • Both products feature stereo speakers.
  • Both products have active noise cancellation.
  • Both products have passive noise reduction.
  • Both products use 11 mm driver units.
  • Both products support spatial audio.
  • Both products have a battery life of 6 hours with ANC on.
  • Both products have a 62 mAh battery capacity.
  • Both products have a 530 mAh battery in the charging case.
  • Both products do not support wireless charging.
  • Both products have a battery level indicator.
  • Both products have rechargeable batteries.
  • Both products have fast pairing.
  • Both products use USB Type-C for charging.
  • Both products have Bluetooth version 5.4.

Main Differences

  • Lowest frequency is 15 Hz on OnePlus Buds 4 and 20 Hz on Realme Buds Air 7 Pro.
  • Impedance is 18 Ohms on OnePlus Buds 4 and 32 Ohms on Realme Buds Air 7 Pro.
  • Realme Buds Air 7 Pro has a neodymium magnet while OnePlus Buds 4 does not.
  • Battery life is 11 hours on OnePlus Buds 4 and 8 hours on Realme Buds Air 7 Pro.
  • Battery life of charging case is 34 hours on OnePlus Buds 4 and 40 hours on Realme Buds Air 7 Pro.
  • Charge time is 1.333 hours on OnePlus Buds 4 and 1.5 hours on Realme Buds Air 7 Pro.
  • Audio latency is 47 ms on OnePlus Buds 4 and 45 ms on Realme Buds Air 7 Pro.
Specs Comparison
OnePlus Buds 4

OnePlus Buds 4

Realme Buds Air 7 Pro

Realme Buds Air 7 Pro

Design:
Fit In-ear In-ear
Ingress Protection (IP) rating IP55 IP55
water resistance Water resistant Water resistant
has no wires or cables
are neckband earbuds
wingtips included
has RGB lighting
has stereo speakers
has UV light
Has a display

Both the OnePlus Buds 4 and the Realme Buds Air 7 Pro feature an in-ear design, providing a similar fit for users. Both are also rated with an IP55 ingress protection, making them water-resistant and capable of withstanding light splashes or sweat during workouts.

Neither product includes wingtips, neckbands, or RGB lighting, and neither has a display or UV light functionality. Additionally, both models are fully wireless, eliminating the need for any cables. For audio, both the OnePlus Buds 4 and Realme Buds Air 7 Pro include stereo speakers, delivering a rich sound experience.

Overall, the design specifications of both earbuds are almost identical, with no significant differences between the two products in this group.

Sound quality:
has active noise cancellation (ANC)
has passive noise reduction
driver unit size 11 mm 11 mm
lowest frequency 15 Hz 20 Hz
highest frequency 40000 Hz 40000 Hz
supports spatial audio
has Dolby Atmos
has Dirac Virtuo
impedance 18 Ohms 32 Ohms
has a neodymium magnet

Both the OnePlus Buds 4 and the Realme Buds Air 7 Pro feature active noise cancellation (ANC) and passive noise reduction, providing effective noise isolation. Both models also support spatial audio, enhancing the listening experience with immersive sound. The driver unit size is the same for both products, with an 11 mm driver, which should deliver similar audio output in terms of driver size.

However, there are some differences in the audio frequency range and impedance. The OnePlus Buds 4 has a wider frequency range, from 15 Hz to 40,000 Hz, compared to the Realme Buds Air 7 Pro's range of 20 Hz to 40,000 Hz. This could mean the OnePlus Buds 4 may handle slightly lower frequencies better. In terms of impedance, the OnePlus Buds 4 has an impedance of 18 Ohms, while the Realme Buds Air 7 Pro has a higher impedance of 32 Ohms. This difference may affect the way each product interacts with certain audio devices, though the specifics depend on the source device's output.

Additionally, the Realme Buds Air 7 Pro has a neodymium magnet, which is not present in the OnePlus Buds 4. Neodymium magnets can contribute to better sound quality, though this feature is not found in the OnePlus model.

Power:
Battery life 11 hours 8 hours
Battery life of charging case 34 hours 40 hours
Battery life (ANC) 6 hours 6 hours
charge time 1.333 hours 1.5 hours
battery power 62 mAh 62 mAh
battery power (charging case) 530mAh 530mAh
has wireless charging
Has a solar power battery
has a battery level indicator
has a rechargeable battery

The OnePlus Buds 4 and Realme Buds Air 7 Pro both offer solid battery performance, with the OnePlus Buds 4 providing 11 hours of battery life on a full charge, compared to the Realme Buds Air 7 Pro's 8 hours. However, both models offer similar battery life with ANC enabled, lasting 6 hours in both cases. When it comes to the charging case, the OnePlus Buds 4 offers 34 hours of additional playtime, while the Realme Buds Air 7 Pro extends this to 40 hours.

The charge time for the OnePlus Buds 4 is 1.333 hours, slightly faster than the Realme Buds Air 7 Pro, which takes 1.5 hours to charge. Both models have the same battery power in the earbuds themselves, at 62 mAh, and the charging case battery power is also the same at 530 mAh for both products.

Neither product supports wireless charging or solar power, but both have battery level indicators and are equipped with rechargeable batteries.

Connectivity:
has fast pairing
Has USB Type-C
Bluetooth version 5.4 5.4
has LDAC
has LDHC
has Bluetooth LE Audio
has aptX Adaptive
has aptX Low Latency
has aptX HD
has aptX
has aptX Lossless
audio latency 47 ms 45 ms
has aptX Voice
has Auracast
maximum Bluetooth range 10 m 10 m
supports Bluetooth pairing using NFC
Can be used wirelessly
has AAC

The OnePlus Buds 4 and Realme Buds Air 7 Pro both support fast pairing, USB Type-C charging, and Bluetooth version 5.4, ensuring seamless connectivity and quick setup. Both models also include LDHC support, but neither has LDAC or Bluetooth LE Audio capabilities. Additionally, both earbuds feature AAC support for high-quality audio streaming.

The OnePlus Buds 4 has a slightly higher audio latency of 47 ms, compared to the Realme Buds Air 7 Pro's 45 ms. While the difference is small, it may be noticeable for activities like gaming or watching videos where low latency is important. Both models have the same maximum Bluetooth range of 10 meters and do not support NFC pairing.

In terms of other connectivity features, neither product includes support for aptX Adaptive, aptX Low Latency, aptX HD, aptX, aptX Lossless, aptX Voice, or Auracast.

Features:
release date July 2025 April 2025
has ambient sound mode
has in/on-ear detection
has find device feature
Supports fast charging
multipoint count 2 2
can read notifications
Has a built-in translator
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
Has a built-in camera remote control function

The OnePlus Buds 4 and Realme Buds Air 7 Pro share several key features, including ambient sound mode, in/on-ear detection, the ability to find the device, fast charging support, and a multipoint count of 2. Both models also have a built-in translator, a mute function, and can be used as a headset. Additionally, both products include voice prompts and a travel bag, but neither has an in-line control panel, temperature sensor, or built-in camera remote control function.

Other features, such as the control panel being placed on the device, are present in both models. Additionally, neither product can read notifications, further matching in terms of feature set.

In short, the OnePlus Buds 4 and Realme Buds Air 7 Pro have almost identical feature sets, with no significant differences between them in this category.

Microphone:
number of microphones 6 6
has a noise-canceling microphone

Both the OnePlus Buds 4 and Realme Buds Air 7 Pro feature 6 microphones and come equipped with a noise-canceling microphone. This ensures that both products provide enhanced voice clarity and reduce background noise during calls or voice commands.

With identical microphone setups, there are no differences between the two models in this category.

In summary, the microphone specifications for both the OnePlus Buds 4 and Realme Buds Air 7 Pro are the same, offering users the same performance in terms of microphone quality and noise cancellation.

Comparison Summary

This is a specification comparison between OnePlus Buds 4 and Realme Buds Air 7 Pro. Both models share an in-ear fit, an IP55 water resistance rating, and active noise cancellation. They also support spatial audio and feature a 62 mAh battery. However, the OnePlus Buds 4 has a lower lowest frequency of 15 Hz, while the Realme Buds Air 7 Pro has a slightly higher 20 Hz. The OnePlus Buds 4 offers a longer battery life of 11 hours, compared to 8 hours on the Realme Buds Air 7 Pro. Additionally, the OnePlus Buds 4 charges faster, taking 1.333 hours compared to the 1.5 hours of the Realme Buds Air 7 Pro. The audio latency is also slightly higher on the OnePlus Buds 4, at 47 ms compared to 45 ms on the Realme model.