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GravaStar Sirius Plus specifications and in-depth review

GravaStar Sirius Plus

Manufacturer: GravaStar

The GravaStar Sirius Plus are true wireless in-ear earbuds designed for users who want a cable-free listening experience with a practical set of features. The earbuds support active noise cancellation alongside passive noise reduction, giving wearers two layers of sound isolation during use. A noise-canceling microphone is also built in, making the Sirius Plus suitable for calls and voice communication as a headset.

On the power side, the Sirius Plus delivers up to 7 hours of playback per charge, with the included charging case extending total battery life to 21 hours. Charging is handled via USB Type-C with fast charging support, bringing the earbuds back to full power in around 1.5 hours. Connectivity is handled over Bluetooth with a maximum range of 10 meters, and the earbuds include an ambient sound mode, touch controls on the device, voice prompts, a mute function, and a travel bag in the box.

Pros
  • Both active noise cancellation and passive noise reduction are supported, offering two layers of sound isolation
  • The charging case extends total battery life to 21 hours, making the earbuds practical for extended use away from a power source
  • Fast charging is supported, reducing downtime when the earbuds need to be topped up
  • A travel bag is included in the box, making portability more convenient out of the box
  • The noise-canceling microphone helps keep voice calls clear in noisier environments
  • Ambient sound mode allows users to let in surrounding audio when needed without removing the earbuds
Cons
  • No wireless charging support, requiring a physical cable connection each time the case needs to be charged
  • None of the advanced Bluetooth audio codecs are supported, including LDAC, aptX, or AAC, which limits audio streaming quality options
  • Bluetooth range is limited to 10 meters, restricting movement from a connected device
  • No in/on-ear detection means music will not automatically pause when the earbuds are removed
  • There is no find device feature, which can be a drawback if an earbud is misplaced
Who is this for?

The GravaStar Sirius Plus are well-suited to everyday commuters and office users who need reliable sound isolation throughout the day. The combination of active noise cancellation and passive noise reduction makes them a practical choice for use in busy or noisy environments, while the noise-canceling microphone supports clear voice calls in similar conditions. Users who spend long stretches away from a power source will also benefit from the 21-hour combined battery life, and the included travel bag makes the earbuds easy to carry on the go.

Who is this NOT for?

Users who prioritize high-fidelity wireless audio will find the Sirius Plus limiting, as the earbuds lack support for any advanced audio codecs such as LDAC, aptX, or AAC, which restricts the quality ceiling of streamed audio. The 10-meter Bluetooth range also makes them less suited to situations where the user needs to move freely at a distance from their source device. Additionally, those who rely on wireless charging or want automatic playback control through in/on-ear detection will need to look elsewhere, as neither feature is available.

Design:

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

The GravaStar Sirius Plus follow an in-ear fit and operate as true wireless earbuds, meaning there are no cables or wires involved. They feature stereo speakers for two-channel audio output. The design does not include a neckband, wingtips, RGB lighting, a UV light, or any kind of display.

Sound quality:

has active noise cancellation (ANC) ✓
has passive noise reduction ✓
driver unit size 10 mm
lowest frequency 20 Hz
highest frequency 20000 Hz
supports spatial audio ✕
has Dolby Atmos ✕
has Dirac Virtuo ✕
has a neodymium magnet ✕

The GravaStar Sirius Plus include both active noise cancellation (ANC) and passive noise reduction, offering two distinct approaches to limiting unwanted ambient sound. Audio is handled by a 10 mm driver unit with a frequency range spanning 20 Hz to 20000 Hz. The earbuds do not support spatial audio, Dolby Atmos, or Dirac Virtuo, and the driver does not use a neodymium magnet.

Power:

Battery life 7 hours
Battery life of charging case 21 hours
charge time 1.5 hours
has wireless charging ✕
Has a solar power battery ✕
has a battery level indicator ✓
has a rechargeable battery ✓

The GravaStar Sirius Plus are equipped with a rechargeable battery that provides 7 hours of playback per charge, with the charging case adding enough capacity to bring the total up to 21 hours. A full charge takes 1.5 hours, and a battery level indicator is included so users can keep track of remaining power. The earbuds do not support wireless charging or solar charging, relying solely on wired charging via the case.

Connectivity:

has fast pairing ✕
Has USB Type-C ✓
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
supports Bluetooth pairing using NFC ✕
Can be used wirelessly ✓
has AAC ✕

The GravaStar Sirius Plus connect wirelessly with a maximum Bluetooth range of 10 meters and use USB Type-C for wired charging. The earbuds do not support fast pairing or NFC pairing, and none of the advanced audio codecs are available, including LDAC, LDHC, AAC, aptX, aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, or aptX Voice. Bluetooth LE Audio and Auracast are likewise not supported.

Features:

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 GravaStar Sirius Plus include a practical set of features, with ambient sound mode, a mute function, voice prompts, and fast charging all supported. The earbuds can be used as a headset and are controlled via a panel placed on the device itself, though there is no in-line control panel. A travel bag is included in the box, adding a degree of portability. The earbuds do not offer in/on-ear detection, a find device feature, notification reading, a temperature sensor, or a built-in camera remote.

Microphone:

has a noise-canceling microphone ✓

The GravaStar Sirius Plus are fitted with a noise-canceling microphone, which helps reduce background noise during calls and voice communication.

Final Verdict

The GravaStar Sirius Plus are a capable pair of true wireless earbuds that deliver a well-rounded feature set for daily use. Their most compelling combination is the dual-layer noise isolation — active and passive — paired with a noise-canceling microphone, making them a reliable option for commuters and those who frequently take calls in noisy surroundings. The 21-hour combined battery life adds meaningful all-day practicality, and fast charging ensures minimal downtime. Where the Sirius Plus fall short is in audio codec support and advanced convenience features, which means they are better positioned for users who prioritize comfort, isolation, and endurance over audiophile-grade wireless fidelity. Overall, the GravaStar Sirius Plus represent a solid everyday option for users who want dependable noise cancellation and strong battery performance in a wireless earbud package.