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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-21 · 7 min read · Independent comparison
• Luckvan's biggest strength: memory foam tips in four sizes (L/M/S/XS) with a built-in filter screen, sized 1:1 for Sony's WF series so they still fit inside the charging case.
• Luckvan's biggest trade-off: it's a consumable accessory, not a product — foam compresses and wears over time, and it only helps if you already own a compatible Sony pair.
• IYGR K98's biggest strength: a complete wired headset — 50mm dynamic drivers, a noise-isolating mic, memory foam cushions and an aluminum alloy frame that stays put on your head.
• IYGR K98's biggest trade-off: it's wired, so it's tethered to your desk or controller, and it's a headset rather than something you can slip in a pocket.
• Choose Luckvan if you own Sony WF-1000XM5/XM4 (or another listed model) and the fit is the problem.
• Choose IYGR K98 if you want one headset for PC, PS5, PS4, Xbox or Switch and you're fine with a cable.
Luckvan sells a narrow, specific product: replacement memory foam ear tips designed 1:1 for the Sony WF-1000XM5, and compatible with a long list of other Sony in-ears — WF-1000XM4, WF-1000XM3, WF-C500, WF-XB700, WF-SP800N, LinkBuds S, plus MDR and XBA series models like the MDR-XB50AP, MDR-XB70BT, MDR-XB510AS and XBA-N3AP. You get four pairs in a spread of sizes (L, M, S, XS) and a small storage box. The material is polyurethane memory foam, and each tip has an internal filter screen so debris doesn't work its way into the nozzle.
The reason this exists is comfort and grip. Silicone tips are what most buds ship with, and some people find they press, slip, or just never quite seal. Foam is softer by nature, and Luckvan's pitch is that this newer polyurethane foam is gentler than ordinary foam tips, with an anti-slip surface that holds a seal during long sessions or workouts. A better seal usually means more bass and less outside noise creeping in, which is why the noise-isolating angle matters here — it's the same principle as foam earplugs, just shaped for a Sony nozzle.
IYGR K98: Who It's For
The IYGR K98 is a different category entirely: a wired, over-ear gaming headset. The spec sheet tells a pretty clear story. It runs 50mm dynamic drivers with a 20 Hz–20 kHz frequency response, 32 ohm impedance and 105 dB sensitivity — numbers that describe an easy-to-drive headset that any controller or motherboard jack can push without a separate amp. Latency is listed at 15 milliseconds, which is the kind of figure that matters if you care about audio staying in step with what's on screen. Connection is a 3.5mm jack, wired, with push-button volume control on the headset itself.
The build is where IYGR clearly spent some effort. The frame is aluminum alloy, which is the part that usually survives the abuse of being tossed onto a desk or yanked off in frustration. The ear cushions are memory foam with an oval, over-ear shape, so they surround the ear rather than pressing on it. Noise control is passive sound isolation — no active noise cancellation, just a closed-back over-ear design that blocks some room noise. The drivers are housed in ABS plastic, and the overall colorway is white and purple with RGB lighting, which tells you this is aimed at the gaming-desk crowd rather than commuters. There's a noise-isolating microphone on board for voice chat.
It works across PC, PS5, PS4, Xbox and Switch via that 3.5mm jack, so one headset covers most of a typical living-room-and-desk setup. Weight is 8 ounces, and the carrying case is listed separately at 11.2 ounces with dimensions of 4.3 x 6.6 x 7.8 inches — that's a sizable hard-ish case, so this isn't a pocketable product. IYGR covers it with a two-year warranty.
Who should buy it: gamers who want one wired headset for multiple platforms and value a metal frame and memory foam cushions over portability. Who should skip it: anyone wanting wireless freedom, or someone who needs something for commuting or the gym — a wired over-ear headset with a boom mic is the wrong tool for that.
• Best for fixing fit and seal on Sony earbuds → Luckvan Memory Foam Tips. Four sizes and a foam surface that grips is the entire purpose.
• Best for a complete, ready-to-use product → IYGR K98. It's a headset, not a part; unbox it, plug it in, you're done.
• Best for multi-platform gaming → IYGR K98. PC, PS5, PS4, Xbox and Switch all connect through the same 3.5mm jack.
• Best for portability → Luckvan Memory Foam Tips. Tips and a small storage box slip into a pocket; the K98's case is roughly the size of a small lunchbox.
• Best for long-wear comfort on wireless buds → Luckvan Memory Foam Tips. Polyurethane foam plus a range of sizes is aimed squarely at all-day wear.
• Best for voice chat → IYGR K98. It has a dedicated noise-isolating microphone; the Luckvan tips have no electronics at all.
• Best for durability of the main structure → IYGR K98. An aluminum alloy frame is built to take knocks; foam tips are a wear item by design.
• Best if you don't own compatible Sony earbuds → IYGR K98. Luckvan only makes sense for the listed Sony models.
In my opinion, these two shouldn't be ranked against each other at all — they solve unrelated problems, and the "better" one is simply the one that matches your gap. If your Sony buds hurt or keep slipping, I'd buy the Luckvan Memory Foam Tips, because four sizes plus a foam seal is the most direct fix available and it's a low-commitment change. If you need a headset for gaming across PC and console, I'd buy the IYGR K98, because the 50mm drivers, metal frame, memory foam cushions and 3.5mm compatibility cover the whole job in one purchase. My honest pick if I could only choose one: the IYGR K98, since it's a complete product rather than an accessory — but that's only true if you don't already own a Sony pair that needs rescuing.
Not directly. Luckvan Memory Foam Tips are replacement ear tips for specific Sony in-ear models, while the IYGR K98 is a complete wired over-ear gaming headset. They only compete for your attention, not for the same job.
Only if you own one of the listed models — WF-1000XM5, WF-1000XM4, WF-1000XM3, WF-C500, WF-XB700, WF-SP800N, LinkBuds S, and various MDR and XBA series in-ears. They're designed 1:1 for the WF-1000XM5 and fit inside the charging case. Check the compatibility list before buying.
It connects by 3.5mm jack and is listed as compatible with PC, PS5, PS4, Xbox and Switch. Since it's wired, there's no battery to charge and no pairing to fumble with — but you are tethered to the controller or desk.
By design, the IYGR K98 is the more durable object: aluminum alloy frame, ABS housing, memory foam cushions and a two-year warranty. The Luckvan tips carry a one-year warranty, but foam naturally compresses with use, so they're best thought of as a replaceable part rather than a permanent upgrade.
I don't quote prices here — they change often, and this page doesn't track them. Use the "Check latest price on Amazon" button above to see the current numbers for both before you decide.
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