GravaStar Mars Pro Review: The Coolest Speaker I've Tested?
Author Byline: By David Miller / Last updated on August 14, 2025
Introduction
My weekly board game night is sacred. It's a ritual. Friends, snacks, and a sprawling game of Dune: Imperium or Gloomhaven on the table. For years, the soundtrack for these epic sessions has come from a perfectly adequate, but soul-crushingly boring, black rectangle of a Bluetooth speaker. It played the music, sure, but it added zero to the atmosphere. It was pure function, no form.
I wanted something different. Something that wasn't just a speaker, but a conversation piece. Something that looked like it belonged on the table next to a starship miniature or a twenty-sided die.
That’s when I stumbled upon the GravaStar Mars Pro. It looked less like a speaker and more like a friendly-but-menacing robot spider from a sci-fi movie. The question was immediate and obvious: Was this just a cool-looking toy, or could it actually deliver the room-filling sound my game nights deserved? I decided to find out.
If you’re wondering the exact same thing, you’ve come to the right place. This review will be the only guide you need to decide if the Mars Pro is your next audio centerpiece.
GravaStar Mars Pro Review: The Coolest Speaker I've Tested?
Is the GravaStar Mars Pro more than a sci-fi gadget? My hands-on review explores if its powerful sound matches its jaw-dropping design.
The Bottom Line Up Front (BLUF)
- Who is this for? The person who values aesthetics as much as audio. If you want a speaker that's a piece of art, a conversation starter, and a focal point for your desk, game room, or living room, this is it. Perfect for sci-fi fans and as a unique gift.
- Who should skip it? The pure audiophile on a budget. If you want the absolute best sound-per-dollar and don't care about design, there are more sonically-focused options. Also, if you need true, rugged portability for hiking or the beach, this isn't the one.
My Final Score: 8.8 / 10✨✨✨✨✨✨
What Real Users Love (The Pros)
- Jaw-Dropping, Sci-Fi Design: It’s made of a Zinc Alloy, giving it a hefty, premium feel. The tripod legs and central 'eye' are impossible to ignore.
- Why this matters to you: This isn't a speaker you hide on a bookshelf. It's a statement piece that enhances the look of your space.
- In my own testing, the moment I unboxed it, it passed the ultimate test: my wife, who usually rolls her eyes at my gadget collection, stopped and said, "Okay, that's actually cool." It was the centerpiece of our last game night before we even turned it on.
- Surprisingly Deep and Punchy Bass: For its size, the Mars Pro delivers a low-end that you can feel, making music sound full and dynamic.
- Why this matters to you: It provides that satisfying "thump" for electronic, hip-hop, and movie scores without needing a massive subwoofer.
- Atmospheric RGB Lighting: The six customizable RGB lights add a whole other layer to the experience, especially in a dimly lit room.
- Why this matters to you: You can match the speaker's lighting to your mood, your gaming setup's color scheme, or the vibe of the music.
- I set it to a slow-pulsing blue which was perfect for our space-themed game. It's a small detail that makes a huge difference in creating an immersive atmosphere.
- Tactile and Satisfying Controls: The touch-sensitive volume strip on the top is intuitive and just plain fun to use.
- Why this matters to you: It makes interacting with the speaker a pleasant experience, unlike fumbling for tiny, poorly marked buttons.
Common Complaints & Potential Deal-Breakers (The Cons)
- Premium Price for the Sound Quality: Let's be clear, it sounds good. But you can get better-sounding speakers for the same price.
- Why this matters to you: A significant portion of the cost is for the incredible design and build materials. You have to be bought into the whole package.
- Honestly, if you're a pure audiophile focused only on sonic neutrality and soundstage, this might not satisfy you. You're paying for the 'wow' factor, and you need to be okay with that.
- 'Portable' is Relative: It has a battery and you can move it, but it's heavy (~3.5 lbs) and its tripod shape is awkward for a backpack.
- Why this matters to you: Don't think of this as a 'toss it in your bag' speaker for the beach. It's 'moveable-around-the-house' portable.
- I tried taking it to the park, and while it worked, it was just a bit too clunky to be practical. It’s happiest on a desk or table.
- Not Water-Resistant: This is an indoor creature. There's no IP rating for water or dust resistance.
- Why this matters to you: Accidental spills at a party or getting caught in the rain at a campsite could be a fatal blow.
Feature Deep Dive: Design vs. Audio Performance
The biggest debate around the GravaStar Mars Pro, based on my testing and analysis of hundreds of user reviews, is where it sits on the spectrum between a design object and an audio device.
Here's my take: It's a design object first, and a very good speaker second. And for the target audience, that is exactly the right order of priorities. The sound is not an afterthought—it's clear, gets impressively loud without distortion, and the bass is genuinely punchy. It's tuned for fun, not for a recording studio. When I played the Blade Runner 2049 soundtrack, the synth-heavy bass filled the room and sounded fantastic.
However, a speaker like the JBL Charge 5 will give you a more balanced, richer soundstage and is fully waterproof for a similar price. But... it looks like every other portable speaker. You're buying the GravaStar because you don't want every other portable speaker. You're buying it for the gasp from your friends when they see it for the first time.
Best Alternatives (The Competition)
- For The Audiophile: JBL Charge 5
- If your absolute top priority is the best possible sound quality and rugged, waterproof durability for the price, the JBL Charge 5 is the undisputed champ. It’s the safe, sensible choice, but it lacks the Mars Pro's unique personality.
- For a Different 'Cool' Vibe: Marshall Emberton
- If you love a statement piece but your style is more rock-and-roll than sci-fi, the Marshall Emberton delivers. It has that iconic guitar-amp look, excellent sound, and a more traditionally portable form factor.
Frequently Asked Questions (FAQ)
- Can you pair two GravaStar Mars Pro speakers for stereo sound?
Yes, it supports True Wireless Stereo (TWS), allowing you to pair two for a much more immersive left/right channel experience. - How durable is the build?
The zinc alloy body is very solid and feels robust. However, the legs, while sturdy, could be a potential weak point if the speaker is dropped from a height. Treat it like the piece of art it is. - Can you turn off the RGB lights to save battery?
Yes, you can cycle through the light modes or turn them off completely, which is recommended if you're trying to maximize the 15-hour playtime. - Is there an app or equalizer?
No, there is no dedicated app or built-in EQ. All equalization must be done from your source device (e.g., your phone's Spotify EQ). - What's in the box?
Just the speaker itself and a USB-C charging cable.
Final Thoughts & Recommendation
So, did the GravaStar Mars Pro solve my boring-speaker problem and elevate my game nights? Absolutely. 100%. It's the first thing people comment on when they walk in, and the sound is more than powerful enough to provide the epic background music our sessions demand. It sparked joy, which is something I never thought I'd say about a Bluetooth speaker.
This speaker is not for everyone. But if you're like me—if you believe the things in your home should be both functional and beautiful, if you want your tech to have personality, and if the idea of a robot-spider-alien speaker makes you smile—then the GravaStar Mars Pro is not just a good choice, it's a fantastic one. It's a splurge you won't regret.
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We hope this in-depth review helps you make a confident choice! To continue your research, check out some of our other popular guides:
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- The Best Smart Lighting of 2023 to Completely Change Your Room's Vibe
- Anker Soundcore vs. JBL: I Put The Two Best Bluetooth Speaker Brands Head-to-Head
Now I'd love to hear from you! Drop a comment below with your experience or any questions I didn't cover. I read every single one.
