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If you want a pocketable true-wireless pair with a tiny charging case and a familiar in-ear fit for phone calls, music and everyday commuting, choose ACAGET Earbuds; if you need a single open-ear earpiece that stays comfortable through long runs and cycling sessions, choose Sanpyl GD28. Both carry an IPX4 water resistance rating, but they solve completely different problems — one is a two-bud all-rounder, the other is a one-ear sport companion. Here's how the design and specs actually break down.
• ACAGET Earbuds — biggest strength: a true-wireless stereo pair in a case that's about 40% smaller than most competitors, with 4.3g buds and up to 30 hours of total playtime from the charging case.
• ACAGET Earbuds — biggest trade-off: each bud runs only 4–5 hours per charge, and IPX4 means sweat and rain are fine but swimming or bathing is not.
• Sanpyl GD28 — biggest strength: an open, not-in-the-ear clip design that avoids that plugged, swollen feeling, plus a long standby time and a single multifunction button.
• Sanpyl GD28 — biggest trade-off: it's a single earpiece, so no stereo pair, no charging case, and about 7 hours of working time per charge.
• Pick ACAGET Earbuds if you want two earbuds for calls, video and commuting.
• Pick Sanpyl GD28 if you want one lightweight earpiece for running and cycling.
The ACAGET Earbuds are built around portability. Each bud weighs just 4.3g, and the charging case is described as roughly 40% smaller than most wireless earphone cases — the kind of thing that genuinely disappears into a jeans pocket. The buds are in-ear with a bud shape and a 13mm dynamic driver, running a 20Hz–20,000Hz frequency range at 32 ohm impedance and 105dB sensitivity. In practice that's a standard, easy-to-drive in-ear setup: it doesn't need a headphone amp, and it's tuned for everyday listening rather than audiophile nitpicking.
Battery is where the case earns its keep. A single full charge gives you 4–5 hours, and the rechargeable case tops the buds up about 3–4 times, which is where the "up to 30H" total figure comes from. The case itself holds a 300mAh battery and recharges over USB Type-C in around 1.5 hours, with a quoted 30-day standby. Pairing is one-step: take the buds out, tap "BT-A1" in your Bluetooth list. Bluetooth 5.1 handles the link with a 10-meter range, and touch controls cover answer/reject, hang up, Siri wake, play/pause, track skip and volume.
Who should buy it: anyone who wants a normal pair of wireless earbuds for calls, podcasts, video and commuting, especially if you carry a small bag or no bag at all. The compatibility list is broad — iPhone, iPad, Galaxy, Pixel, OnePlus. Who should skip it: swimmers and bath-time listeners, because the IPX4 rating covers sweat and rain only, and the listing explicitly notes the buds are not for swimming or bathing. If you want zero in-ear pressure, the in-ear bud shape may also not be your thing.
The Sanpyl GD28 is a different animal entirely: a single open-ear earpiece that clips on rather than sealing into your ear canal. The "not in the ear" design is the whole point — the brand's claim is that your ear feels no swelling or soreness even after long wear, which is the classic complaint with in-ear buds on hour three of a run. It uses a 13mm film loudspeaker with real copper and a three-frequency balance, plus a micro air hole intended to reduce noise, and a leakproof earhole so people around you aren't hearing your playlist.
Controls are deliberately minimal: one multifunction blind-press button. Short press for play/pause, long press to reject a call, double click for the next track, triple click to redial. Bluetooth 5.3 handles the connection, with a listed working time of about 7 hours, roughly 1 hour to charge, and a standby figure of around 800 hours from the built-in 50mAh battery. The package is just the earphone, a USB cable and a manual — no case, because there's nothing to store but one earpiece.
IPX4 shows up here for the same reason it does on the ACAGET: sweat and rain protection for sport. The title specifically frames it for running and cycling, and the product info lists it as in-ear, in black, with a 90-day manufacturer warranty.
Who should buy it: runners, cyclists and gym-goers who want one ear free, hate the plugged feeling of in-ear buds, and want a long standby time so it's ready whenever they grab it. Who should skip it: anyone who wants stereo music, a charging case, or two earpieces for calls and video — this is a mono earpiece by design, and its connectivity field is unusual (listed as ethernet), so treat the Bluetooth 5.3 spec as the relevant detail here.
• Best for stereo music and video → ACAGET Earbuds. Two buds, a 13mm dynamic driver, and a proper stereo pair.
• Best for long-run comfort → Sanpyl GD28. The open, not-in-the-ear clip design is made to avoid soreness over long sessions.
• Best for total playtime → ACAGET Earbuds. Up to 30 hours combined with the case versus about 7 hours per charge on the single Sanpyl earpiece.
• Best for standby → Sanpyl GD28. Around 800 hours of standby means it's basically always ready to go.
• Best for travel and pocket carry → ACAGET Earbuds. The 40%-smaller case and 4.3g buds are made to disappear in a pocket.
• Best for hands-free sport with one ear open → Sanpyl GD28. A single clip-on earpiece keeps you aware of traffic and surroundings.
• Best for phone calls on both ears → ACAGET Earbuds. Built-in mic, touch answer/reject/hang-up, Siri wake.
• Best for minimalist controls → Sanpyl GD28. One blind-press button does play/pause, skip, reject and redial.
In my opinion, the ACAGET Earbuds are the safer buy for most people, because a stereo pair with a charging case covers calls, music, video and commuting — the everyday jobs headphones actually do. The Sanpyl GD28 wins on one specific thing: open-ear comfort for running and cycling, where a single 7-hour earpiece with huge standby time makes real sense. If your day is mostly desk, train and phone calls, go ACAGET. If your day is mostly miles, go Sanpyl. Check the current price on Amazon before you decide, since that's the one thing the spec sheets can't tell you.
FAQ
can i wear waterproof headphones in the shower
are headphones waterproof
IPX4 is not waterproof; it's water-resistant against splashes. It handles sweat during a workout and light rain, but it is not built to survive submersion in water. Neither of these two products claims waterproofing beyond that IPX4 level.
which one is better for running, ACAGET or Sanpyl GD28
For running, I'd point to the Sanpyl GD28, because its open, not-in-the-ear clip design is specifically aimed at avoiding soreness over long wear and it's marketed for running and cycling. The ACAGET buds are IPX4 too, but they're in-ear, so sweat is fine while comfort over long distances is more of a personal call.
do these headphones work with iPhone and Android
The ACAGET Earbuds pair over Bluetooth 5.1 and list compatibility with iPhone, iPad, Galaxy, Pixel and OnePlus devices, so both major platforms are covered. The Sanpyl GD28 uses Bluetooth 5.3 for a standard wireless connection to phones. In both cases you just pair through your phone's Bluetooth settings.
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