We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-21 · 6 min read · Independent comparison
If you want a complete, ready-to-go multi-platform gaming headset you can wear out of the box, choose SteelSeries Arctis Nova 3X; if you need to replace a single lost right earbud for your Samsung Galaxy Buds 3 Pro, choose korllo Single Right Replacement. These two look like they belong in the same conversation because both are "audio gear," but they solve completely different problems. One is a full wireless headset built for gaming across consoles and PC. The other is a single pre-owned right earbud that exists to restore a pair of earbuds you already own.
• SteelSeries Arctis Nova 3X — biggest strength: A complete over-ear wireless headset with a 40-hour battery, USB-C dongle for low-latency 2.4GHz gaming, Bluetooth 5.3 quick-switch, and a mobile app with 200+ game presets.
• SteelSeries Arctis Nova 3X — biggest trade-off: It's a full-size over-ear headset at roughly 260G, so it's a bigger commitment than a tiny earbud, and it isn't a repair part — it's a whole new product.
• korllo Single Right Replacement — biggest strength: A right-ear-only replacement that matches the original size and interface of the Galaxy Buds 3 Pro (AI version), so you can restore a working pair instead of buying a whole new set.
• korllo Single Right Replacement — biggest trade-off: It's a pre-owned/used single earbud, right ear only, and it works only with the Galaxy Buds 3 Pro — not the standard Galaxy Buds 3.
• Who each pick is for: Choose the Arctis Nova 3X if you need a gaming headset for Xbox, PS5, PC, Switch, or mobile. Choose the korllo replacement if you already own Galaxy Buds 3 Pro and lost or damaged the right earbud.
The Arctis Nova 3X is a do-everything wireless gaming headset. It connects over 2.4GHz through a USB-C dongle (a USB-A adapter is also included) for low-latency audio, and it quick-switches to Bluetooth 5.3 when you want to jump to your phone. It runs up to 40 hours on a charge, and fast charging gives you up to 9 hours of playback from just 15 minutes plugged in. For anyone who's ever had a headset die mid-session, that combination matters more than almost anything else.
Who should buy it: Gamers who want one headset for Xbox, PS5, PC, Switch, handhelds, phones, and tablets, and who value long battery life and per-game audio tuning. Who should skip it: Anyone who just needs a cheap fix for a broken earbud, or who prefers the tiny in-ear form factor over an over-ear headset. This is a full product, not a part.
korllo Single Right Replacement: Who It's For
The korllo Single Right Replacement is a very specific tool for a very specific problem. If you own Samsung Galaxy Buds 3 Pro (the AI version, model SM-R630) and you've lost or damaged the right earbud, this is a way to get back to a working pair without replacing everything. It's a pre-owned/used but fully functional right earbud that matches the original size and interface protocols, connects to your charging case, and auto-syncs device info. It pairs with your existing left earbud to restore full functionality.
The spec sheet says it carries the same high-definition speaker unit and AI chip as the original, and it supports 360° spatial audio, ANC, and ambient sound mode. Sound is described as consistent, with rich bass, clear mids and highs, and crisp call noise reduction. It also comes with a 1-year limited warranty covering manufacturing defects and functional issues under normal use, though not physical damage, misuse, or water exposure. Each unit is described as professionally tested for sound, battery life, and compatibility.
Who should buy it: Galaxy Buds 3 Pro owners who lost the right earbud and want to keep the pair they already have and like. Who should skip it: Anyone who doesn't own Galaxy Buds 3 Pro, anyone who needs the left side, and anyone who wants a brand-new, unused product — this is explicitly a pre-owned replacement. Note the compatibility warning: it works with the Buds 3 Pro, not the standard Galaxy Buds 3.
• Best for gaming across consoles and PC → SteelSeries Arctis Nova 3X. USB-C dongle plus a USB-A adapter covers Xbox, PS5, PC, Switch, handhelds, and mobile.
• Best for battery life → SteelSeries Arctis Nova 3X. Up to 40 hours per charge, with up to 9 hours from a 15-minute fast charge.
• Best for per-game audio tuning → SteelSeries Arctis Nova 3X. The companion app's 200+ presets let you sharpen footsteps and other cues.
• Best for long-session comfort → SteelSeries Arctis Nova 3X. Roughly 260G, stretchy headband, multiple adjustment points, dual-hinge build.
• Best for fixing a lost right earbud → korllo Single Right Replacement. It exists to restore a Galaxy Buds 3 Pro pair you already own.
• Best if you want original-grade earbud features → korllo Single Right Replacement. Same speaker unit and AI chip as the original, per the spec sheet, with ANC, ambient mode, and 360° spatial audio.
• Best if you want something brand new → SteelSeries Arctis Nova 3X. The korllo part is a pre-owned/used single earbud.
• Best for staying in the Galaxy Buds ecosystem → korllo Single Right Replacement. It pairs with your existing left earbud and charging case.
In my opinion, the right pick comes down to whether you're buying gear or fixing gear. If you need a headset — for gaming, calls, or both — I'd buy the SteelSeries Arctis Nova 3X. The 40-hour battery, fast charging, low-latency 2.4GHz plus Bluetooth 5.3, and the app's game presets make it a genuinely complete product, and the light 260G build with a stretchy headband suits long sessions.
If you already own Galaxy Buds 3 Pro and only lost the right earbud, I'd buy the korllo Single Right Replacement instead. Spending on a whole new headset to solve a one-earbud problem doesn't make sense, and this part is built specifically to slot back into your existing pair. Just confirm you have the Buds 3 Pro, not the standard Buds 3.
It's a pre-owned/used but fully functional right earbud, and it's described as professionally tested for sound, battery life, and compatibility. If you want a brand-new, unused product, this isn't it.
No. It's compatible only with the Samsung Galaxy Buds 3 Pro (AI version, model SM-R630). It is not compatible with the standard Galaxy Buds 3, so check your model before ordering.
Yes. It connects via a USB-C dongle for 2.4GHz across Xbox, PS5, PC, Switch, handhelds, phones, and tablets, and it quick-switches to Bluetooth 5.3 for mobile use.
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