GravaStar Sirius Pro Earbuds Review - Worth The Hype? 
Updated · Sep 10, 2022
Best for: Gamers looking for eye-catching and versatile TWS earbuds
GravaStar was founded in 2018. The team’s mission is self-described as “creating audio engineering art.”
You’d only need to take one look at GravaStar Sirius Pro to see what they mean by that. These earbuds would fit right in Cyberpunk 2077!
However, their flashy looks aren’t the only noteworthy thing. Their build and sound quality are also otherworldly. They’re a TWS (True Wireless Stereo) model aimed chiefly at gamers.
Still, they’re decently versatile, with three different listening modes for gaming, watching movies, and listening to music. They’re capable of ENC (Environmental Noise Cancelation), as well.
One more thing:
You can use the metal case as a bottle opener.
Stay tuned for more critical info in this GravaStar Sirius Pro review.
Features, Accessories, and Quality
It’s time to take a deep dive into Sirius Pro’s capabilities. I’ve already hinted at some of the core features, but there’s much more to come.
Let’s jump right in!
Here’s what awaits you when you unpack these earbuds.
They come in a striking plastic box that looks like a space shuttle.
The box contains:
- A charging case (coupled with the headphones)
- A chain for the case so you can wear it around your neck
- Three sets of silicone pads (S, M, and L)
- A USB-C cable
- A user manual.
In general, my first impression was positive! The packaging is more than adequate, and it properly excites you for the product.
Style and Build Quality
The GravaStar Sirius Pro earbuds come in four styles:
- War-damaged yellow
- War-damaged gray
- Space gray
- Neon green.
They’re all bold and edgy, which might be a bit too much for some users! But, they’re light and comfy and fit the ears well.
The Zinc Alloy charging case is also dazzling. Literally.
It has six RGB LED lights and a button so you can turn them on and off.
And it’s durable! It can survive accidental drops without a scratch.
Best of all:
It has a slit in the middle for cracking open bottles. I never thought I’d need that feature on a charging case, but I’ll definitely take it.
Additionally, the GravaStar headphones have magnets that make them fit the case perfectly.
However, they can be tricky to get out — you might even have to use a pen. It’s a minor complaint but still worth noting.
So, how well do these TWS earbuds perform?
They support Bluetooth 5.2 and can cover a 10m range, which is pretty decent.
But, if you’re particular about sound quality, you might be a bit disappointed by the limited audio codec choice. You can use the default SBC and AAC. AAC is slightly better, but its transfer rate caps at a mediocre 250kbps.
On the brighter side, this codec is one of the best ones for online gaming. Consider that the latency for the Sirius Pro earbuds is 65ms, and you’ve got yourself a winning combination.
Curious about the battery life?
Here’s what you need to know.
The case has four charges for the IEMs. Each one lasts around four hours. So, once you do the math, that’s 16 hours of playtime in total. It takes up to two hours for the buds to charge, while the case takes three hours.
Overall, the battery life is satisfying!
You can also easily carry the case with you — even around your neck as an awesome necklace.
Three Sound Modes
Yup, these Sirius headphones have three different sonic profiles. You can switch between them with a tap (more about the touch-based controls in a bit!).
The first one is Gaming mode.
As soon as you tune in, you’ll notice the expanded soundstage. GravaStar credits the 5.1 virtual surround sound for that effect. It provides an immersive gaming experience where you’ll feel like you’re in the middle of the action.
The second effect is Music mode.
Compared to the previous one, it’s much more balanced and detailed. But, if you’re a stickler for neutral sound, it might be a bit bass-heavy for your taste. Still, it’s worth noting that the Sirius Pro earbuds aren’t meant for critical listening anyway.
Finally, the third mode is for Movies.
It combines the first two effects: a wide soundstage that’s rich in detail. It accentuates every scene, whether intimate and slow or fast and explosive. However, this effect has a unique midrange that won’t work on anything else except films.
We all know how finicky touch-sensitive headphones can be. However, I’m pleased to report that the GravaStar Sirius Pro has great controls. They’re responsive and smooth, although it takes time to get used to them.
Most of the actions are split between the earbuds. Here’s what you can do:
- Play/pause — Tap L or R
- Skip — Double-tap R
- Return — Double-tap L
- Turn up the volume — Hold R
- Turn down the volume — Hold L
- Switch between gaming and music mode — Triple-tap R
- Switch between movie and music mode — Triple-tap L
- Voice assistant — Tap L or R four times.
You can use each earbud independently. The music will also automatically stop when you take one out.
Environmental Noise Cancelation
These Sirius headphones have another ace up their sleeve — ENC. Basically, this feature isolates voices while tuning out the rest. It’s suitable for taking calls in busy environments.
They also don’t leak sound, which means your guilty listening pleasures stay secret.
Finally, let’s not forget about water resistance.
These IEMs are IPX5 rated. They can sustain low-pressure streams, like rain or sweat. So, nothing too extreme — water immersion is out of the question.
But feel free to bring them the next time you go for a jog!
Performance and Specs
Naturally, this GravaStar Sirius Pro earbuds review wouldn’t be complete without a performance eval.
So, let’s get technical!
The headphones have an intriguing dual-driver design. They feature:
- Knowles balanced armatures for higher frequencies
- 7.2mm dynamic drivers for lower-end audio.
Ideally, that combination should provide a balanced sound on both fronts. However, these IEMs lean on the bassy side.
Let me explain.
So, the treble is well-defined but subdued in all modes. It’s noticeable with violins and epic guitar solos — they kind of blend into the background.
The mids are warm and vibrant. They’re more present than the treble range but still slightly overpowered by the bass.
However, this is to be expected. After all, the GravaStar Sirius Pro earbuds are IEMS with silicone tips. They form a tight seal that also amplifies the lower frequencies.
And this type of sound isn’t without its fans! Most users will enjoy the extra punchiness. On the other hand, audiophiles and purists won’t be too enthused.
Let’s move on to the specs.
The official product specification lists the following:
- Bluetooth version: 5.2
- Operation range: 10m±
- Noise Cancelling Mode: ENC
- Charging Time: 1.5-2H
- Battery Life: 4H±
- Weight: 6g (single earbud)
- Input: 5V=500mA
- Output: 5V=150mA
- Charging Time: 3H±
- Battery Capacity: 400mAh
- Battery Type: Li-ion
- Charging Port: Type-C.
Last but not least, these GravaStar headphones cost $129.95 or $149.95, depending on the color you choose. All things considered, they have a satisfying price/performance balance.
Here’s the TL;DR for this GravaStar Sirius Pro review.
These IEMs are surprisingly flexible. They excel in gaming, but you can use them for music and films just as well.
I also appreciate the craftsmanship that went into the charging case. It feels solid and reliable. And the cool aesthetic is the cherry on top!
Still, they’re not without their flaws.
The vibrant looks might be too much for someone’s taste, and the same goes for the bass. Additionally, better Bluetooth codecs with higher transfer rates would be appreciated.
Just like the GravaStar Mars Pro speaker, this model is more than just a pretty face. It has all you’d need from a pair of gaming headphones and more!
Hopefully, this GravaStar Sirius Pro earbuds review helps you make up your mind.
Selma is a content writer with a love for all things nerdy by day and an internet archaeologist that likes to dig up obscurities by night. Mostly she's trying to balance between many obsessions. Right now, it's bass playing and reading hard sci-fi about vampires in outer space - next week, who knows.
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