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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a proven everyday wireless earbud with tunable sound, independent single-bud use and a small, pocketable case, choose JLab Go Air Pop+; if you need an open-ear clip design that lets you hear the world around you, suits small ears and glasses wearers, and is built for running and sports, choose Kinglucky i121.
• JLab Go Air Pop+ — biggest strength: 9+ hours per bud and 26+ more from the case (35+ total), plus EQ3 sound modes you can switch on the fly and Dual Connect so either bud works alone.
• JLab Go Air Pop+ — biggest trade-off: It's a traditional in-ear bud with no noise cancelling; the seal blocks some ambient sound and you'll want the right gel tip size for a secure fit.
• Kinglucky i121 — biggest strength: Open-ear clip-on comfort at 5.2g per earbud, Bluetooth 5.4, IPX5 waterproofing and 50 hours of total playtime with a 12mm dynamic driver.
• Kinglucky i121 — biggest trade-off: Open-ear design means you trade isolation for awareness — great outdoors, less ideal if you want to shut out the world on a plane or train.
• Who each is for: JLab Go Air Pop+ for commuters, podcast listeners and anyone who wants one bud in and one ear free; Kinglucky i121 for runners, gym-goers, glasses wearers and small-ear users who hate pressure inside the ear canal.
The Go Air Pop+ is the classic do-everything wireless earbud, refined. JLab's headline numbers are the real story: 9+ hours per earbud, 26+ more in the case, so 35+ hours of total playtime. That's roughly a full workweek of commutes before you need the integrated USB-C cable, and a 10-minute top-up gets you about an hour of listening — the kind of detail that matters when you're running out the door.
Sound is tunable rather than fixed. EQ3 gives you Signature, Bass Boost and Balanced, and you can also adjust presets and touch controls through the JLab app. For a listener who flips between podcasts (where you want clarity) and playlists (where you want low end), that flexibility is genuinely useful. Bluetooth 5.3 covers iOS, Android and PC, and the 30-foot range is fine for moving around a room or apartment.
The physical design is where it wins for a lot of people. The buds are 15% smaller than the previous generation, IPX4 rated for sweat and light rain, and come with three gel tip sizes. The case is smaller than a credit card, so it disappears into a pocket. Dual Connect lets you run either bud independently, which is perfect for taking calls while keeping one ear open. Each bud has its own MEMS mic, so calls don't depend on which side you're using, and Be Aware Mode pipes ambient sound back in when you want it.
Who should buy it: commuters, students, office workers, casual gym users, and anyone who wants one small, reliable pair for calls, podcasts and music across phone and laptop. Who should skip it: if you specifically want an open-ear clip that never enters the ear canal, or you need maximum water resistance for heavy sweat, the Go Air Pop+ isn't that product. It's also worth checking the current price on Amazon, since value is a big part of this category.
The i121 is a different animal entirely — an open-ear clip-on earbud. Instead of sealing into your ear canal, it clips onto the outer ear, and at 5.2g per earbud that's light enough to forget you're wearing it. The brand positions it specifically for small ears and glasses wearers, which is a real pain point: traditional buds and thick temple arms on glasses fight for the same space. The clip design sidesteps that entirely, and the extended ear hooks are shaped so you can pair them with earrings without soreness.
Because nothing goes inside your ear, you keep full situational awareness. That's the whole point for runners, cyclists and anyone training near traffic or on busy trails. Directional audio minimizes sound leakage, so the people around you aren't hearing your playlist, and ENC noise-cancelling mics are there for calls in noisy gyms or crowds. It's not active noise cancelling — it's the opposite philosophy, and Kinglucky is upfront about that.
The hardware is solid for the category: Bluetooth 5.4 for low-latency, stable connections, IPX5 waterproofing that stands up to sweat and rain, and a 12mm dynamic driver. Battery is 6 hours per charge with 50 hours total including the case. The C-shaped bridge is styled as a fashion piece — the brand calls it "jewelry for parties" — and it ships in gift-ready packaging, which tells you who this is marketed to.
Side-by-Side: Which Should You Choose?
• Best for battery life → JLab Go Air Pop+ (35+ hours total, 9+ per bud, 10-minute quick charge).
• Best for all-day open-ear comfort → Kinglucky i121 (5.2g clip-on, pressure-free, no ear-canal insertion).
• Best for running and outdoor sports → Kinglucky i121 (open-ear awareness, IPX5, Bluetooth 5.4).
• Best for commutes and office work → JLab Go Air Pop+ (Dual Connect, MEMS mics, Be Aware Mode, compact case).
• Best for glasses wearers and small ears → Kinglucky i121 (designed around exactly that fit problem).
• Best for tunable sound → JLab Go Air Pop+ (EQ3 modes plus app-based EQ and control customization).
• Best for hearing your surroundings while listening → Kinglucky i121 (open-ear design, directional audio).
• Best for a single pair across phone and PC → JLab Go Air Pop+ (Bluetooth 5.3 across iOS, Android and PC, 30-foot range).
In my opinion, the JLab Go Air Pop+ is the safer buy for most people. It covers more ground: longer battery, tunable sound, a genuinely pocketable case, independent bud use, and a two-year JLab warranty. If your listening happens on commutes, at a desk, or during calls, that's the one I'd pick.
I'd choose the Kinglucky i121 only if open-ear comfort is your non-negotiable — you run outdoors, you wear glasses, your ears are small, or you can't stand anything inside your ear canal. In that specific lane, it's excellent. Just know you're trading isolation and sound tuning for awareness and fit.
FAQ
For outdoor running, yes — the open-ear clip keeps you aware of traffic and the IPX5 rating handles sweat and rain. The Go Air Pop+ is IPX4 and sits inside the ear, so it's more of a gym and commute bud than a trail companion.
No. The Go Air Pop+ has no noise control and relies on the in-ear seal plus Be Aware Mode to let ambient sound in when you want it. The Kinglucky i121 uses ENC mics for calls rather than active noise cancelling for listening.
The Kinglucky i121 is designed with glasses wearers in mind — the clip-on structure avoids the pressure that in-ear buds and thick temple arms create. The Go Air Pop+ will fit most people, but glasses plus long sessions can get uncomfortable.
I can't quote prices here, and they change often. Check the current price on Amazon for both before deciding — the button on this page takes you straight there.
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