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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-22 · 6 min read · Independent comparison
• LDSXAY Bose biggest strength: Whole-body washable silicone with an upgraded thickness and 360° coverage — a straightforward, no-nonsense protective skin. Biggest trade-off: It only fits the 2024 Bose New QuietComfort Earbuds, so it's useless if you own the Ultra II.
• FJIASTB Case biggest strength: Integrated one-piece design so the flip cover won't accidentally come off, plus a lanyard in the box. Biggest trade-off: It's locked to the Bose QuietComfort Ultra Earbuds II (2nd Gen, 2025) and nothing else.
• Color and finish: LDSXAY ships in Black; FJIASTB ships in Dark Blue. Both are plain silicone, so pick the one that matches your bag or your mood.
• LDSXAY Bose is for you if you own the 2024 Bose New QuietComfort Earbuds and want a washable, shock-absorbing cover you can clip anywhere.
• FJIASTB Case is for you if you own the Bose QuietComfort Ultra Earbuds II and want a case that stays shut, charges without being removed, and offers a second carry option.
The LDSXAY Bose case is a single-purpose accessory, and that's exactly its appeal. It's designed only for the Bose New QuietComfort Wireless Noise Cancelling Earbuds released in 2024 — not the Ultra line, not older QuietComfort models. If that's your earbuds, this is a clean fit with no wrestling.
What it does best is protection. The silicone is shock-resistant and soft, and LDSXAY says it's been thickened for 360° all-round coverage against dust, scratches and the everyday knocks of life. Silicone also doesn't tend to age or crack the way some rigid plastics can, so the case should keep looking like new for a long stretch. It's fully washable too, which matters more than people expect: earbuds cases pick up fingerprint oils, pocket lint and the grit from the bottom of a backpack. Rinse it, and it's clean again.
Who should buy it: owners of the 2024 Bose New QuietComfort Earbuds who want a soft, washable, clip-anywhere skin in classic black. Who should skip it: anyone with the QuietComfort Ultra Earbuds II — it simply won't fit — and anyone who wants a lanyard-style carry or a bolder color.
FJIASTB Case: Who It's For
The FJIASTB case is built for the Bose QuietComfort Ultra Earbuds II, the 2nd Generation model released in 2025. FJIASTB is blunt about the compatibility limit, and that's a good thing: check your earbuds model before ordering, because this will not work with the 2024 QuietComfort Earbuds or any other model.
Its standout design decision is the integrated, one-piece construction. The flip cover is attached, so it won't accidentally fall off when you're pulling the case in and out of a pocket or bag — a small detail that becomes a real annoyance-saver over months of daily use. The silicone is soft and skin-friendly, and it's rated waterproof and shockproof, so light rain, spills and the usual bumps are covered.
Charging is another point in its favor: the case is designed so you can charge your earbuds without taking the cover off. Anyone who has owned a snug silicone case knows the small daily friction of peeling it back every night — FJIASTB sidesteps that entirely. And the package includes a carabiner and a lanyard, so you get two ways to carry it: clip it to a bag or wear it on your wrist. FJIASTB also mentions 24-hour after-sales support, which is a nice reassurance for a small accessory.
Who should buy it: owners of the Bose QuietComfort Ultra Earbuds II who want a secure, integrated cover in a dark blue shade that stands out from the usual black. Who should skip it: anyone with the 2024 Bose New QuietComfort Earbuds — the fit is different — and anyone who prefers a plain, minimal look without a lanyard.
• Best for the 2024 Bose New QuietComfort Earbuds → LDSXAY Bose. It's the only one of the two that fits that model.
• Best for the Bose QuietComfort Ultra Earbuds II (2025) → FJIASTB Case. The reverse is also true — LDSXAY won't work here.
• Best for washability and easy cleaning → LDSXAY Bose. Whole-body washable silicone with long-lasting color, which is handy if your case lives in a gym bag.
• Best for lid security → FJIASTB Case. The integrated design means the flip cover won't pop off on its own.
• Best for charging convenience → FJIASTB Case. You can charge without disassembling the case.
• Best for carry options → FJIASTB Case. It includes both a carabiner and a lanyard; LDSXAY includes a carabiner only.
• Best for a classic, understated look → LDSXAY Bose. Plain black silicone that matches everything.
• Best for a bit of personality → FJIASTB Case. Dark blue with a nature-inspired pattern gives it more character.
• Best for added peace of mind → LDSXAY Bose. A 90-day warranty is spelled out, which is more concrete than most cases at this level.
In my opinion, the deciding factor here isn't the case at all — it's your earbuds. These two products don't compete, they divide the market. If you own the 2024 Bose New QuietComfort Earbuds, buy the LDSXAY case; if you own the Bose QuietComfort Ultra Earbuds II, buy the FJIASTB case. There is no overlap, and buying the wrong one just means a return.
If I had to pick one design, I'd lean toward the FJIASTB Case — the integrated flip cover and the bundled lanyard solve two real problems, and charging without removing the case is the kind of detail that pays off every single day. But that only holds if it actually fits your earbuds. Check the model, then decide.
No. LDSXAY states it's designed only for the Bose New QuietComfort Earbuds released in 2024. If you have the Ultra Earbuds II, the FJIASTB case is the one built for that model.
No. FJIASTB specifies compatibility with the Bose QuietComfort Ultra Earbuds II (2nd Gen, 2025) only. Check your earbuds model before ordering.
With the FJIASTB case, yes — it's designed for charging without disassembly. The LDSXAY case is a soft silicone skin, so you'd simply leave it on as usual; nothing in its listing suggests a charging cutout is required.
That depends on what you need. LDSXAY gives you a washable, thick, 360° silicone skin and a 90-day warranty; FJIASTB gives you an integrated lid, a carabiner plus lanyard, and a dark blue finish. Since neither listing's price is shown here, check the current price on Amazon before deciding.
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