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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 featherweight single-ear headset for calls and all-day wearing on one ear, choose Sunffice Ear Hook BT; if you need a true pair of open-ear earbuds with a charging case, long battery life and real water resistance for workouts, choose Conyat Open-Ear Headphones.
• Sunffice Ear Hook BT — biggest strength: an ear-hook, non-in-ear design that sits outside the ear canal, weighs only about 9 g, and can be worn on either the left or right ear.
• Sunffice Ear Hook BT — biggest trade-off: it is a single earpiece (one unit only), the on-board buttons don't handle volume or track skipping, and the battery is rated at roughly 6 hours of music with a 2-hour charge.
• Conyat Open-Ear Headphones — biggest strength: a full stereo pair with 8–10 hours per charge, up to 40 hours total with the charging case, Bluetooth 6.0, touch controls and IP7 water resistance.
• Conyat Open-Ear Headphones — biggest trade-off: it's a two-earbud system that lives in a charging case, so you're carrying more gear — and you can't use just one side as a dedicated call headset the way you can with a hook design.
• Who each pick is for: Sunffice for someone who wants one light earpiece for calls and awareness; Conyat for someone who wants open-ear stereo sound for running, commuting and long listening sessions.
The Sunffice Ear Hook BT is built around one idea: keep the ear canal completely open. It's a single ear-hook earpiece, not an in-ear bud and not a bone-conduction headset. Instead of plugging your ear or vibrating your skull, it rests against the outside of your auricle, which the spec sheet describes as an ergonomic fit that avoids pressure on the eardrum. At roughly 9 g it's genuinely light, and because the hook is reversible, you can wear it on whichever ear you prefer. If you wear glasses, the design notes it suits small or thin spectacle frames.
What it does best is the phone-call, one-ear job. It has a built-in microphone, active noise cancellation for the mic side of things, and a 20 Hz–20,000 Hz dynamic driver — a normal full-range spec, nothing exotic. Bluetooth range is quoted at 10 meters, and it pairs with iOS, Android and Windows devices, including phones, laptops, PCs and iPads. It can hold a connection to two devices at once, and it reconnects automatically once paired. Battery life is listed at about 5–6 hours of talk time, roughly 6 hours of music, 150 hours of standby, and a 1–2 hour charge. On iPhone, the remaining battery shows up on screen.
Who should buy it: anyone who dislikes things inside their ears, wants one ear free for the world around them, and mostly takes calls or listens casually. It's also a sensible pick for glasses wearers and for people who want to keep one ear open while driving, working or looking after kids.
Conyat Open-Ear Headphones: Who It's For
The Conyat Open-Ear Headphones (model X5S) take the same open-ear philosophy and scale it up to a proper pair. Each earpiece weighs about 6.7 g and hooks over the ear while leaving the ear canal unobstructed. You get two earbuds, a portable charging case, a USB-C cable and a manual in the box. The design is aimed squarely at movement: running, cycling, walking, commuting, the gym — anywhere you'd want music without losing track of traffic or the people around you.
The spec list here is the more modern one. Bluetooth 6.0 handles pairing, and the earbuds auto-pair when you lift them out of the case. Audio comes from a 14.2 mm dynamic driver, notably larger than the Sunffice's, paired with directional sound transmission that the specs say reduces leakage so what you're playing stays yours. For calls there's an ENC noise-cancelling microphone that filters background noise — a genuinely useful feature in an open design where the mic has to work harder. Battery is the headline: 8–10 hours per charge depending on volume, up to 40 hours total with the case, and a full recharge in about 1.5 hours over USB-C. An LED indicator on the case shows its charge level.
Controls are touch-based, and unlike the Sunffice they cover the full set: power, play/pause, track skipping, calls and volume. IP7 water resistance means sweat and rain are covered, which is the single biggest practical difference for anyone training outdoors. Conyat also backs the X5S with a 30-day refund window and a 2-year warranty.
Who should buy it: anyone who wants open-ear stereo sound, long battery, touch controls and weather resistance in one package. If you run, ride or commute and want your music in both ears without blocking the world out, this is the more complete tool.
Who should skip it: if you specifically want a single lightweight earpiece for calls, or you don't want to manage a charging case, the two-bud system is more than you need.
• Best for battery life → Conyat Open-Ear Headphones. 8–10 hours per charge and up to 40 hours with the case, versus roughly 6 hours on a single charge for the Sunffice.
• Best for a single-ear call headset → Sunffice Ear Hook BT. It's one earpiece by design, with a mic, dual-device connection and automatic re-pairing.
• Best for workouts and rain → Conyat Open-Ear Headphones. IP7 water resistance and a secure over-ear hook; the Sunffice is a plastic hook with no water rating listed.
• Best for stereo music → Conyat Open-Ear Headphones. Two earbuds, a 14.2 mm driver, and directional transmission to limit leakage.
• Best for glasses wearers → Sunffice Ear Hook BT. The specs explicitly note it suits small or thin spectacle frames, and the hook sits outside the ear rather than over it.
• Best for on-device controls → Conyat Open-Ear Headphones. Full touch control including volume and track skipping; the Sunffice buttons don't cover either, so you'll use your phone.
• Best for the lightest possible fit → Sunffice Ear Hook BT. About 9 g on one ear versus about 6.7 g per earbud on Conyat — but the Sunffice is a single unit, so there's less to notice overall.
• Best for left-or-right flexibility → Sunffice Ear Hook BT. Either ear works with the same earpiece; the Conyat pair is a fixed left/right set.
If I had to pick one, I'd buy the Conyat Open-Ear Headphones. In my opinion, the larger 14.2 mm driver, the 40-hour total battery, Bluetooth 6.0, full touch controls and IP7 water resistance make it the more capable product for the way most people actually use open-ear audio — music, calls and movement, all day. The Sunffice Ear Hook BT is a smart, genuinely light single-earpiece solution, and if you only ever want one ear covered for calls, it does that job well. But as a single all-rounder, I'd go Conyat.
Not quite. Both are open-ear designs that leave the ear canal unobstructed, but the Sunffice is a single ear-hook earpiece for one ear, while the Conyat is a pair of open-ear earbuds that charge in a case.
The Conyat. It's rated for 8–10 hours of playtime per charge and up to 40 hours with the charging case. The Sunffice lists about 6 hours of music playback and 150 hours of standby.
The Conyat carries IP7 water resistance, so sweat and rain are covered. The Sunffice spec sheet lists no water-resistance rating, so I wouldn't count on it in wet conditions.
Both have microphones, but they're different tools. The Sunffice is a single-ear headset with a mic and dual-device pairing, which suits long one-ear call sessions. The Conyat adds an ENC noise-cancelling mic and lets both ears stay aware — better if you take calls while moving around outdoors.
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