TurboVS
Nu Republic Epic X4 specifications and in-depth review

Nu Republic Epic X4

Manufacturer: Nu Republic

The Nu Republic Epic X4 wireless earbuds deliver a reliable audio experience with a comfortable in-ear fit. They offer a solid range of features, including 7 hours of battery life on a single charge, making them suitable for everyday use.

These earbuds are equipped with Bluetooth 5.3 for seamless connectivity and feature a 13 mm driver unit for clear sound. While they don't offer active noise cancellation, they do have passive noise isolation. The earbuds also come with a rechargeable battery and a travel bag for convenience.

Pros
  • The earbuds feature a 13 mm driver unit, which helps deliver clear and detailed sound across a wide frequency range.
  • With up to 7 hours of battery life on a single charge and an additional 40 hours from the charging case, they provide long-lasting use.
  • The earbuds support fast charging, allowing for quicker recharges, which is convenient for users in a hurry.
  • They come with a travel bag for easy portability, making them a practical option for users on the go.
  • Equipped with 4 microphones and noise-canceling mic technology, the earbuds ensure clear communication during calls, even in noisy environments.
Cons
  • The earbuds do not support active noise cancellation (ANC), limiting their ability to block out ambient noise during listening.
  • There is no water resistance rating, making them unsuitable for use in wet conditions or during intense physical activities.
  • They lack fast pairing and NFC pairing, meaning users must manually connect the earbuds to their devices.
  • These earbuds do not support wireless charging or any form of solar charging, limiting charging convenience for users.
  • There are no ambient sound mode or in-ear detection features, so users won't be able to hear their surroundings or have automatic playback pausing.
Who is this for?

The Nu Republic Epic X4 wireless earbuds are ideal for users who prioritize convenience and long battery life. With up to 7 hours of playback time and 40 hours with the charging case, they are perfect for daily commutes, travel, or long listening sessions. The noise-canceling microphone and the ability to use the earbuds as a headset make them a great option for those who need clear communication during calls, even in noisy environments.

Who is this NOT for?

active noise cancellation, as they only offer passive noise isolation. Additionally, their lack of water resistance makes them unsuitable for exercise or outdoor activities in wet conditions. They are also not ideal for those who require fast, automatic pairing or wireless charging, as they lack these features.

Design:

Fit In-ear
water resistance None
has no wires or cables ✓
are neckband earbuds ✕
wingtips included ✕
has RGB lighting ✕
has stereo speakers ✓
has UV light ✕
Has a display ✕

The Nu Republic Epic X4 wireless earbuds offer an in-ear fit for a comfortable and secure listening experience. These earbuds are designed to be true wireless, with no cables or neckband, providing maximum freedom of movement. They also feature stereo speakers for an enhanced audio experience. However, they do not include wingtips, RGB lighting, or a display, and there is no water resistance rating or UV light functionality.

Sound quality:

has active noise cancellation (ANC) ✕
has passive noise reduction ✓
driver unit size 13 mm
lowest frequency 20 Hz
highest frequency 20000 Hz
supports spatial audio ✕
has Dolby Atmos ✕
has Dirac Virtuo ✕
has a neodymium magnet ✓

The Nu Republic Epic X4 wireless earbuds deliver a solid sound experience with a 13 mm driver unit, ensuring clear audio across a frequency range of 20 Hz to 20,000 Hz. While they lack active noise cancellation, they offer passive noise reduction to help block out external noise. These earbuds also feature a neodymium magnet for enhanced sound quality but do not support spatial audio, Dolby Atmos, or Dirac Virtuo.

Power:

Battery life 7 hours
Battery life of charging case 40 hours
charge time 1.5 hours
has wireless charging ✕
Has a solar power battery ✕
has a battery level indicator ✓
has a rechargeable battery ✓

The Nu Republic Epic X4 wireless earbuds offer a solid battery performance, providing up to 7 hours of playback on a single charge. When used with the charging case, they can deliver a total of 40 hours of usage. Charging is quick, with a full charge taking just 1.5 hours. These earbuds feature a rechargeable battery and include a battery level indicator to keep track of power, but they do not support wireless charging or have a solar power battery.

Connectivity:

has fast pairing ✕
Has USB Type-C ✓
Bluetooth version 5.3
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 40 ms
has aptX Voice ✕
has Auracast ✕
maximum Bluetooth range 10 m
supports Bluetooth pairing using NFC ✕
Can be used wirelessly ✓
has AAC ✕

The Nu Republic Epic X4 wireless earbuds feature Bluetooth 5.3 for stable connectivity and support a maximum Bluetooth range of 10 m. While they do not include fast pairing, NFC pairing, or advanced Bluetooth features like aptX or LDAC, they are fully wireless and offer an audio latency of 40 ms. The earbuds also include a USB Type-C port for convenient charging but do not support wireless charging or Bluetooth LE Audio.

Features:

release date March 2025
has ambient sound mode ✕
has in/on-ear detection ✕
has find device feature ✕
Supports fast charging ✓
can read notifications ✕
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 Nu Republic Epic X4 wireless earbuds offer several useful features, including fast charging support and a mute function for added convenience. They can also be used as a headset for calls and feature a control panel placed directly on the device. Additionally, the earbuds include voice prompts for easy operation and come with a travel bag for storage, though they do not support in-ear detection, the ability to find the earbuds, or a built-in camera remote control.

Microphone:

number of microphones 4
has a noise-canceling microphone ✓

The Nu Republic Epic X4 wireless earbuds are equipped with a total of 4 microphones, ensuring clear and effective communication. These microphones also feature noise-canceling technology, which helps reduce background noise during calls for a better audio experience.

Final Verdict

The Nu Republic Epic X4 wireless earbuds are a solid choice for users seeking a reliable, comfortable audio experience with up to 40 hours of total battery life and a noise-canceling microphone for clear communication. While they lack advanced features like active noise cancellation or water resistance, they provide good value for daily use and long listening sessions. These earbuds are best suited for those who prioritize convenience, extended battery life, and call functionality in a compact design.