If you’re looking for comfy earbuds that don’t go inside your ears, QCY has two cool options: the Crossky C30 and the Crossky C30S.
These clip-on earbuds hook over your ears, perfect for workouts or just chilling without blocking the world.
But which one’s better for you?
In this article, I’ll compare their design, sound, battery, and more to help you decide.
Also see: QCY Crossky C50 Review
QCY C30 vs C30S: Specs Comparison
| Specification | QCY C30 | QCY C30S |
|---|---|---|
| Bluetooth Version | 5.4 | 6.0 |
| Driver Size | 10.8mm dual-magnet | 10.8mm dual-magnet |
| Audio Codecs | AAC/SBC | LDAC/AAC/SBC |
| Battery Life (Earbuds) | 5.5 hours | 6 hours |
| Total Battery Life | 25 hours | 40 hours |
| IP Rating | Sweat resistant (IPX4 equivalent) | IPX5 |
| Weight (per earbud) | 5g | 5g |
| Low Latency | 80ms | 60ms (Game Mode) |
How They Look and Feel
Both the C30 and C30S are super light, weighing only 5 grams each, so you barely notice them.
They clip onto your ears and stay put, even if you’re running or shaking your head.
The charging case for both is small enough to toss in your pocket, but the C30S feels a bit sturdier. Its case has a nicer finish that doesn’t scratch as easily. The C30’s case is good too, just not as fancy.
For water resistance, the C30 can handle light splashes (IPX4 rating), while the C30S steps it up to IPX5, meaning it’s better for sweaty workouts or a bit of rain.
When it comes to fit, both feel comfy for long wear, but some folks say the C30S fits smaller ears a tiny bit better because of its shape.
Winner: If durability and water resistance matter for intense activities, go for the C30S. Otherwise, the C30 holds up well.
Connecting to Your Phone
The C30 uses Bluetooth 5.4, which connects fast and stays steady up to about 30 feet.
The C30S goes a step further with Bluetooth 6.0, making it even quicker to pair and more reliable in busy places like a gym or mall.
If you watch videos or play games, the C30S is better—it has less delay (60ms vs. the C30’s 80ms), so the sound matches what you see on screen.
Both can connect to two devices at once, like your phone and laptop, which is handy.
Winner: The C30S’s Bluetooth 6.0 and lower latency make it future-proof and better for multimedia.
Comfort Level
These earbuds don’t go in your ears, so they’re super comfy for hours—no sore ears or sweaty canals.
The clip design keeps them secure, whether you’re jogging or just moving around.
Some people with smaller ears say the C30S feels a bit more snug, but honestly, both are great and won’t fall off.
Winner: Tie, but the C30S could be preferable for varied ear shapes.
Battery Life
Here’s where the C30S really shines. The C30 gives you about 5.5 hours of music on one charge, and the case adds up to 25 hours total. That’s decent for most days.
But the C30S bumps it up to 6 hours per charge and a huge 40 hours with the case. Plus, a quick 10-minute charge gives you hours of playtime.
If you’re always on the go or forget to charge, the C30S lasts longer.
Winner: C30S wins for longer sessions.
App and Extra Features
Both earbuds work with the QCY app (on iPhone or Android), where you can tweak the sound, change touch controls, or update the earbuds. You get cool stuff like a game mode for less lag and spatial audio for a surround-sound vibe.
The C30S adds some extras: it supports high-quality LDAC audio (great for Android users, not iPhones), a sleep mode, and options to adjust notification volume or set a timer to turn off.
The app feels complete and easy to use. The C30 has similar app features but skips the fancy audio and extra settings.
Winner: C30S for advanced users who want more tweaks.
How They Sound
For open-ear buds, both sound awesome. The C30 has big 10.8mm drivers that give strong bass, clear vocals, and sharp highs. It’s loud and great for workouts.
The C30S steps it up with dual-magnet drivers and high-res audio (LDAC), making music sound richer and more detailed, especially for podcasts or songs with lots of instruments.
Some folks think the C30’s bass hits a bit harder, but you’d need to listen closely to notice.
Since they’re open-ear, don’t expect noise cancellation—they let in outside sounds on purpose so you stay aware.
Winner: C30S for audiophiles; C30 for bass lovers on a budget.
Microphone for Calls
Both have mics that work okay for calls in quiet places. Your voice comes through clearly, but noisy spots like a busy street can make it harder to hear.
The C30S might handle background noise slightly better, but it’s not a huge difference.
Winner: Both are fine for quick calls, nothing special.
Price and Deals
At the time of writing, the C30 costs about $30-40, a great deal for what you get. The C30S is a bit more at $40-50. Prices can change, so check AliExpress or QCY’s site for sales.
The C30 is a steal if you’re saving money, but the C30S gives you more for a small price bump.
Which One’s for You?
The QCY C30 is a fantastic pick if you want affordable, reliable clip-on earbuds for workouts or casual listening. They sound good, stay comfy, and get the job done.
But if you can spend a little more, the QCY C30S is the winner. It lasts longer, sounds a bit better, connects faster, and has a tougher build. It’s perfect for Android users who want high-quality audio or anyone needing all-day battery life.
Best Deals:
QCY C30: View on AliExpress
QCY C30S: View on AliExpress
Nick, the Co-founder of Earbuds Arena, is a seasoned freelance tech journalist with over ten years of experience covering wearables, apps, headphones, and gadgets. When he’s not immersed in the tech world, you’ll likely find him unwinding with video games, going for a run, or enjoying a game of soccer on the field.
