Moondrop Space Travel 2 Ultra
Oppo Enco Free 4

Moondrop Space Travel 2 Ultra Oppo Enco Free 4

Common Features

  • Both products are in-ear earbuds.
  • Both products are wireless.
  • Neither product is a neckband earbud.
  • Neither product includes wingtips.
  • Neither product has RGB lighting.
  • Both products have stereo speakers.
  • Neither product has UV light.
  • Neither product has a display.
  • Both products feature active noise cancellation.
  • Both products provide passive noise reduction.
  • Both products have a frequency range from 20 Hz to 20000 Hz.
  • Neither product supports spatial audio.
  • Neither product supports Dolby Atmos.
  • Neither product has Dirac Virtuo.
  • Neither product uses a neodymium magnet.
  • Both products have a rechargeable battery.
  • Both products have a battery level indicator.
  • Both products can be used as a headset.
  • Both products feature a mute function.
  • Both products have voice prompts.

Main Differences

  • The driver unit size is 13 mm on Moondrop Space Travel 2 Ultra and 11 mm on Oppo Enco Free 4.
  • Battery life is 7 hours on Moondrop Space Travel 2 Ultra and 11 hours on Oppo Enco Free 4.
  • The battery life of the charging case is 24 hours on Moondrop Space Travel 2 Ultra and 34 hours on Oppo Enco Free 4.
  • The charge time is 1.5 hours for Moondrop Space Travel 2 Ultra and 0.85 hours for Oppo Enco Free 4.
  • Battery power is 35 mAh on Moondrop Space Travel 2 Ultra and 62 mAh on Oppo Enco Free 4.
  • Battery power of the charging case is 380 mAh on Moondrop Space Travel 2 Ultra and 530 mAh on Oppo Enco Free 4.
  • The Bluetooth version is 6 on Moondrop Space Travel 2 Ultra and 5.4 on Oppo Enco Free 4.
  • Moondrop Space Travel 2 Ultra supports LDAC while Oppo Enco Free 4 does not.
  • Oppo Enco Free 4 supports LDHC while Moondrop Space Travel 2 Ultra does not.
  • The maximum Bluetooth range is 10 m on Moondrop Space Travel 2 Ultra and 40 m on Oppo Enco Free 4.
  • Oppo Enco Free 4 has a built-in translator while Moondrop Space Travel 2 Ultra does not.
  • The number of microphones is 2 on Moondrop Space Travel 2 Ultra and 6 on Oppo Enco Free 4.
Specs Comparison
Moondrop Space Travel 2 Ultra

Moondrop Space Travel 2 Ultra

Oppo Enco Free 4

Oppo Enco Free 4

Design:
Fit In-ear In-ear
has no wires or cables
are neckband earbuds
wingtips included
has RGB lighting
has stereo speakers
has UV light
Has a display

Both the Moondrop Space Travel 2 Ultra and the Oppo Enco Free 4 feature an in-ear design and are wireless, with no wires or cables, making them both highly portable and free of traditional corded connections. Neither model includes a neckband, nor do they come with wingtips for extra support.

In terms of additional features, both models lack RGB lighting, UV light, and displays. However, both the Moondrop Space Travel 2 Ultra and the Oppo Enco Free 4 do include stereo speakers, providing a more immersive audio experience compared to standard mono speakers.

While the specifications for both products are quite similar across these design elements, the key differences lie mainly in individual product branding and other non-design aspects, which are outside the scope of this comparison.

Sound quality:
has active noise cancellation (ANC)
has passive noise reduction
driver unit size 13 mm 11 mm
lowest frequency 20 Hz 20 Hz
highest frequency 20000 Hz 20000 Hz
supports spatial audio
has Dolby Atmos
has Dirac Virtuo
has a neodymium magnet

Both the Moondrop Space Travel 2 Ultra and the Oppo Enco Free 4 feature active noise cancellation (ANC) and passive noise reduction, which should help to block out ambient noise for a better listening experience. The lowest and highest frequencies are identical for both products, with a range of 20 Hz to 20,000 Hz, ensuring both models cover the full spectrum of human hearing.

The main difference between the two models in terms of sound specifications is the driver unit size. The Moondrop Space Travel 2 Ultra uses a larger 13 mm driver unit, while the Oppo Enco Free 4 has a slightly smaller 11 mm driver unit. However, the impact of this difference is not detailed in the provided specs.

Neither product supports spatial audio, Dolby Atmos, Dirac Virtuo, or includes a neodymium magnet, which means both models offer a similar level of sound technology in these areas.

Power:
Battery life 7 hours 11 hours
Battery life of charging case 24 hours 34 hours
charge time 1.5 hours 0.85 hours
battery power 35 mAh 62 mAh
battery power (charging case) 380mAh 530mAh
has wireless charging
Has a solar power battery
has a battery level indicator
has a rechargeable battery

The Moondrop Space Travel 2 Ultra offers a battery life of 7 hours on a single charge, with an additional 24 hours provided by its charging case. In comparison, the Oppo Enco Free 4 has a longer battery life of 11 hours per charge, and its charging case extends usage to 34 hours. Both models have a rechargeable battery and a battery level indicator, but neither supports wireless charging or solar power batteries.

When it comes to charge times, the Moondrop Space Travel 2 Ultra requires 1.5 hours to fully charge, while the Oppo Enco Free 4 has a quicker charge time of just 0.85 hours. In terms of battery capacity, the Moondrop Space Travel 2 Ultra has a 35 mAh battery in the earbuds and a 380 mAh battery in the charging case. The Oppo Enco Free 4, on the other hand, has a larger 62 mAh battery in the earbuds and a 530 mAh battery in the case.

Despite these differences in battery size and charging times, both products offer similar core features in terms of battery management, including rechargeable batteries and battery level indicators.

Connectivity:
has fast pairing
Has USB Type-C
Bluetooth version 6 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
has aptX Voice
has Auracast
maximum Bluetooth range 10 m 40 m
supports Bluetooth pairing using NFC
Can be used wirelessly
has AAC

The Moondrop Space Travel 2 Ultra and the Oppo Enco Free 4 both feature USB Type-C connectivity and support wireless use, but there are some key differences in their Bluetooth features. The Moondrop Space Travel 2 Ultra supports Bluetooth version 6 and includes LDAC for high-resolution audio, but it does not support LDHC, Bluetooth LE Audio, or any of the aptX variants (Adaptive, Low Latency, HD, Lossless, or Voice). It also has a maximum Bluetooth range of 10 meters.

On the other hand, the Oppo Enco Free 4 uses Bluetooth version 5.4, which provides a lower maximum range of 40 meters. Unlike the Moondrop, it supports LDHC but lacks LDAC. Like the Moondrop, it does not support Bluetooth LE Audio or the aptX variants. Both products share the support for AAC, but neither has fast pairing or NFC pairing capabilities.

In summary, the Moondrop Space Travel 2 Ultra offers LDAC and a higher Bluetooth version, while the Oppo Enco Free 4 offers a longer Bluetooth range and supports LDHC instead of LDAC.

Features:
release date September 2025 April 2025
has ambient sound mode
has in/on-ear detection
Supports fast charging
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

Both the Moondrop Space Travel 2 Ultra and the Oppo Enco Free 4 feature ambient sound mode, fast charging support, a mute function, and the ability to be used as a headset. They also both include voice prompts, a travel bag, and control panels placed on a device. Neither product has in/on-ear detection, in-line control panels, a temperature sensor, or a built-in camera remote control function.

The Moondrop Space Travel 2 Ultra and the Oppo Enco Free 4 are similar in many of these key features, but there is one difference: the Oppo Enco Free 4 has a built-in translator, whereas the Moondrop Space Travel 2 Ultra does not.

Overall, both products are equipped with many practical features, but the inclusion of a built-in translator in the Oppo Enco Free 4 is a notable distinction.

Microphone:
number of microphones 2 6
has a noise-canceling microphone

The Moondrop Space Travel 2 Ultra is equipped with two microphones, both of which feature noise-canceling technology. In contrast, the Oppo Enco Free 4 includes six microphones, also with noise-canceling capabilities. While both products have noise-canceling microphones, the Oppo Enco Free 4 offers a higher number of microphones, which could potentially improve voice clarity and capture in more complex environments.

Both products share the feature of noise-canceling microphones, making them suitable for clearer communication, especially in noisy settings.

In summary, while both models provide noise-canceling microphones, the Oppo Enco Free 4 has a notable advantage in the number of microphones it offers, potentially enhancing its performance in voice capture.

Comparison Summary

This is a specification comparison between Moondrop Space Travel 2 Ultra and Oppo Enco Free 4. Both products feature in-ear fit and stereo speakers, and offer active noise cancellation and passive noise reduction. However, the Moondrop Space Travel 2 Ultra has a 13 mm driver unit, while the Oppo Enco Free 4 has an 11 mm driver unit. The Moondrop Space Travel 2 Ultra has a battery life of 7 hours compared to 11 hours on the Oppo Enco Free 4. Additionally, the Bluetooth version is 6 on the Moondrop model and 5.4 on the Oppo model. The Moondrop model supports LDAC, whereas the Oppo model supports LDHC.