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 an open-ear, bone-conduction design that keeps your ears completely free so you can hear traffic and conversation while you train, choose SilisoundTek Bone Conduction Headphones; if you need a long-runtime over-ear sport earbud with a charging case that keeps a full week of workouts topped up, choose SANLIUJIU Over.
• SilisoundTek's biggest strength: true bone-conduction, open-ear audio — nothing goes inside your ear canal, so you stay aware of your surroundings and avoid in-ear pressure.
• SilisoundTek's biggest trade-off: the battery is rated at 8–10 hours per charge with no charging case, so long multi-day trips mean recharging in between.
• SANLIUJIU Over's biggest strength: a 48-hour charging case (6 hours per charge) plus IPX7 waterproofing and ENC call mics — the endurance pick.
• SANLIUJIU Over's biggest trade-off: it's a conventional in-ear bud with earhooks, so it blocks your ear canal and you lose the open-ear awareness that bone conduction gives you.
• Who each is for: SilisoundTek is for runners, cyclists and commuters who want situational awareness and an all-day wearable frame. SANLIUJIU Over is for gym-goers, travellers and frequent flyers who want maximum runtime and sealed-in stereo sound.
The SilisoundTek S800C is built around a single idea: your ears stay open. Instead of pushing a driver into your canal, it transmits sound through your cheekbones, so you're listening to music and still hearing cars, bikes and voices around you. For anyone who runs on roads, cycles in traffic or works out in a shared gym, that awareness is the whole point. It's also the more hygienic option if you dislike the pressure, heat or soreness that in-ear tips cause over a long session.
The frame is the other story. It's a wrap-around titanium alloy memory frame that bends through a full 360° and returns to shape, with silicone cushions on both sides and a listed weight of 0.11 kg. In practice that means it flexes to your head, holds steady through hard movement and doesn't need constant re-seating. Bluetooth 5.3 covers the connection, IPX7 covers sweat and rain (the brand notes it isn't for swimming), and the 230 mAh battery is rated for 8–10 hours of music and calls with up to 15 days standby. Magnetic charging tops it up fast — the brand claims roughly 2 hours of use from a 15-minute charge.
SANLIUJIU Over: Who It's For
The SANLIUJIU REA520 goes the opposite direction: it's an over-ear sport earbud with flexible earhooks and soft silicone tips that lock into place for running, cycling and gym work. It's rated IPX7 as well, so sweat, rain and splashes are handled. The enclosure is ABS, the driver is a 10mm dynamic unit with 16-ohm impedance, and the whole thing weighs 1.6 ounces.
Where it clearly wins is endurance. You get 6 hours per charge and a pocket-sized USB-C charging case that takes the total to 48 hours — plus a claimed 180 days of standby. A 15-minute top-up returns about 2 hours of playback. For marathon training blocks, long commutes or a week of back-to-back sessions, that means you rarely think about charging at all. Bluetooth 5.3 gives instant pairing with a listed range up to 50 feet and low latency for video and calls, and dual ENC microphones are there to clean up your voice in a noisy gym or a windy outdoor run. Touch controls handle play, skip, volume and your voice assistant.
Who should buy it: gym regulars, travellers, students and commuters who want sealed-in stereo sound, deep bass and a case that carries days of power. Who should skip it: anyone who specifically wants open-ear awareness, or who dislikes things sitting inside their ear canal. It's also worth noting the noise control is listed as active noise cancellation, which is the exact opposite of what a road cyclist should want.
Side-by-Side: Which Should You Choose?
• Best for situational awareness → SilisoundTek. Open-ear bone conduction keeps traffic, voices and hazards audible.
• Best for people who hate in-ear tips → SilisoundTek. Nothing enters the ear canal, so no pressure or soreness.
• Best for sealed-in bass and stereo isolation → SANLIUJIU Over. A 10mm dynamic driver in a closed over-ear fit.
• Best for calls in noisy places → SANLIUJIU Over. Dual ENC microphones are designed to filter background noise; SilisoundTek relies on a single noise-cancelling mic.
• Best for glasses-wearers and helmet users → SilisoundTek. A flexible wrap-around frame sits around the head rather than pressing on the ear.
• Best for multi-day travel without a charger → SANLIUJIU Over. Standby is listed at 180 days.
• Best for a one-piece, nothing-to-lose setup → SilisoundTek. No case to carry; magnetic charging is the only accessory you need.
In my opinion, most people shopping this comparison should buy the SilisoundTek Bone Conduction Headphones. The open-ear design is the reason this category exists — awareness, comfort and hygiene are things you feel on every single run, while runtime is something you can plan around. That said, if your priority is going a week without charging and you want your music sealed in, I'd take the SANLIUJIU Over instead; its charging case and ENC mics are genuinely better for gym and travel use. Pick the SilisoundTek for the road, the SANLIUJIU for the gym.
Not better — different. Bone conduction transmits sound through your cheekbones so your ears stay open, which is safer outdoors and more comfortable for long wear. Regular earbuds like the SANLIUJIU Over seal the canal, giving stronger bass and isolation. Choose based on whether you need to hear your surroundings.
SilisoundTek is rated for 8–10 hours of playback with up to 15 days standby from a 230 mAh battery. SANLIUJIU Over gives 6 hours per charge but a 48-hour total with its USB-C case, plus 180 days of standby. If you train daily, the case makes a real difference.
No. Both are IPX7, which covers sweat, rain and splashes, and the SilisoundTek listing explicitly states it is not suitable for swimming. Treat both as weather- and sweat-proof, not pool-proof.
Pricing changes, so check the current price on Amazon using the button on this page rather than trusting a figure written here. On features alone, the SilisoundTek buys you open-ear bone conduction; the SANLIUJIU buys you a charging case and far more total runtime. Value depends on which of those you actually need.
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