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 open-ear sport audio with a feather-light clip-on fit, choose TOZO OpenEarRing True Open; if you need a bedside charging station that also tells the time, choose IHAO 4in1. These two products barely overlap — one goes on your ears, the other sits on your nightstand. So the real question isn't which is "better." It's which problem you're actually trying to solve.
• TOZO OpenEarRing True Open — biggest strength: an open-ear clip-on design with skin-friendly silicone and IPX5 water resistance, built for movement and long wear.
• TOZO OpenEarRing True Open — biggest trade-off: it's a Bluetooth audio product only, so it does nothing for your desk or nightstand.
• IHAO 4in1 — biggest strength: four functions in one footprint — magnetic wireless charging, alarm clock, mirror LED display and a USB port.
• IHAO 4in1 — biggest trade-off: it's a stationary accessory, so it only helps you at home or at a desk.
• Pick TOZO if you want headphones you can wear through a workout and forget you have on.
• Pick IHAO if your nightstand is a tangle of cables and three separate chargers.
The TOZO OpenEarRing is an open-ear headphone, which means the driver sits outside your ear canal rather than plugging it. That single design choice explains almost everything about it. Your ears stay open to traffic, gym announcements, and the person talking to you — and because nothing is jammed into the canal, there's no pressure build-up over long sessions. TOZO leans hard into that comfort story with skin-friendly silicone and a clip-on shape, and the numbers back it up: a single earbud weighs just 5.1g. That's light enough that "discreet" is a fair description, not marketing fluff.
The spec sheet also lists something slightly unusual — a second set of in-ear buds, the TOZO A1, bundled in the same package. Those are a different animal: 3.7g per bud, an ergonomic in-ear fit that's shaped not to protrude, and a 6mm dynamic driver tuned for a wide range with a bass emphasis. So the box effectively gives you two listening modes. Open-ear for awareness and all-day comfort; in-ear for a more sealed, bass-forward listen when you'd rather shut the world out.
Buy it if you run, lift, cycle or walk outdoors and want music without blocking your surroundings. Skip it if you're shopping for a desk or bedside gadget — this is purely a personal audio product, and it needs a Bluetooth source to be useful at all.
The IHAO 4in1 does the opposite job. It's a single bedside object that replaces several. The magnetic wireless charger grabs your phone and holds it at a viewing angle, which is genuinely handy if you use your phone as a nightstand clock or scroll a little before sleep. Around that, IHAO packs a digital alarm clock, a high-definition LED display that doubles as a mirror when it's switched off, and a 5V/1A USB-A port so a fourth device — a tablet, a second phone, earbuds — can charge at the same time.
Charging is the headline spec, and it's split across devices deliberately: 15W magnetic wireless charging for the phone, with dedicated charging spots for wireless earbuds and a smartwatch. IHAO also calls out an intelligent protection circuit against overcharging, overheating and short circuits, which is the kind of detail you want in something that charges three or four things while you sleep. The display shows time, alarm settings and real-time temperature with adjustable brightness — thoughtful, because a blinding LED at 2 a.m. is a real annoyance.
Buy it if you want one clean station for phone, watch and earbuds, and you like the idea of a mirror-finish display that looks like decor rather than a gadget. Skip it if you need something portable. The 4in1 lives on a surface and stays there.
• Best for workouts and outdoor audio → TOZO OpenEarRing True Open. Open-ear design plus IPX5 water resistance handles sweat and rain.
• Best for all-day comfort → TOZO OpenEarRing True Open. 5.1g per open-ear bud with skin-friendly silicone is about as light as wearable audio gets.
• Best for bass and a sealed listen → TOZO OpenEarRing True Open. The bundled in-ear A1 buds use a 6mm dynamic driver with a bass emphasis.
• Best for a tidy nightstand → IHAO 4in1. Charger, clock, mirror display and USB port in one footprint.
• Best for charging several devices at once → IHAO 4in1. 15W magnetic phone charging plus dedicated earbud and watch spots, and a USB-A port for one more.
• Best for sleep-friendly details → IHAO 4in1. Adjustable display brightness and an anti-overcharge protection circuit matter most overnight.
• Best for travel → TOZO OpenEarRing True Open. It's wireless and wearable; the 4in1 is tethered to a wall outlet and a flat surface.
• These aren't substitutes. If you're torn between them, you're really deciding between an audio upgrade and a charging-station upgrade.
For most people reading a comparison with this title, I'd buy the TOZO OpenEarRing True Open. It solves a problem you feel every day — headphones that stay comfortable and keep you aware of your surroundings — and the bundled in-ear A1 buds give it a second personality. The IHAO 4in1 is a genuinely clever bit of kit, and I'd recommend it to anyone whose nightstand is drowning in cables. But it's a convenience product, not an everyday companion. If you already own decent earbuds, flip that recommendation and take the IHAO. Check the current price on Amazon before deciding, since that's the one variable I can't weigh for you.
Yes — that's its clear use case. It's an open-ear design with IPX5 water resistance, so sweat and rain aren't a concern, and at 5.1g per bud it's built to stay comfortable through a long session.
It provides dedicated charging spots for wireless earbuds and a smartwatch alongside 15W magnetic phone charging, so yes — that's exactly the three-device setup IHAO designed it around, plus a USB-A port for a fourth.
They're not comparable on value because they do unrelated jobs. Judge each against what it replaces: the TOZO against a single pair of earbuds, the IHAO against a charger, a clock and a USB brick. Compare current prices on Amazon for each.
No. The TOZO is Bluetooth audio only and needs a paired source; the IHAO is a stationary charging station and clock with no audio function at all. If you need both jobs done, you're buying two products.
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