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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-20 · 8 min read · Independent comparison
• QAZITV Bone conduction headphones — biggest strength: IPX8 waterproofing plus a built-in 32GB MP3 player, so it can work underwater and without a paired phone.
• QAZITV Bone conduction headphones — biggest trade-off: It's a chunky, swim-first tool with a 2-hour charge time and a plastic open-ear build, so it's less discreet for all-day office or TV use.
• Blue Deer U1 — biggest strength: A 2-in-1 design that switches between Sound Amplifier mode and Bluetooth mode, with voice clarity tuning and a light 30g open-ear fit.
• Blue Deer U1 — biggest trade-off: IPX5 water resistance only, and Bluetooth playback drops to about 6 hours versus 10 hours in amplifier mode.
• Pick QAZITV Bone conduction headphones if you swim, dive, or train hard and want music on your head, not on your phone.
• Pick Blue Deer U1 if you want one light device for conversations, calls, TV, and casual listening.
The QAZITV headset is built around one clear idea: music that survives water. Its IPX8 rating means it's designed to handle the underwater environment, so it can be used normally while swimming or diving rather than being ruined by contact with water. That's a rare claim in the open-ear world, and it changes who this product is actually for. If you've ever left your earbuds in a locker because you were afraid of the pool, this is the category of device that solves that problem — with one important caveat straight from the spec sheet: you're meant to switch to MP3 mode when you're underwater.
That brings up the second pillar of the design: the built-in 32GB MP3 player. QAZITV says it can hold up to 9000 songs, and it lets you build your own library so the headphones don't need a phone or any other device to play music. In practice, that means a swimmer or runner can leave the phone behind entirely — no armband, no waterproof pouch, no Bluetooth dropouts when your body blocks the signal. You load tracks over the included magnetic data-and-charging cable, double-click the power button to hop between Bluetooth and MP3 mode, and you're set. The 240mAh battery supports up to 12 hours of continuous playback, charged in about 2 hours, and you get two magnetic charging cables in the box so a lost cable isn't a crisis.
The rest of the package is a familiar bone conduction formula: an open-ear fit that wraps around the back of the ear or behind the head, a flexible titanium headband, and drivers that send sound through your cheekbones so your ear canal stays open. That keeps you aware of traffic and surroundings, and it's easier on the ear canal over long sessions than plugging something in. Bluetooth 5.3 covers wireless duty with low latency, multi-point connection lets you stay paired to a phone, laptop, and tablet at once, and noise control is handled by active noise cancellation. The frequency range is 20 Hz to 20,000 Hz with 8-ohm impedance.
Who should buy it: swimmers, divers, triathletes, and anyone doing long, sweaty training who wants offline music and doesn't want to babysit a phone. Who should skip it: if you mostly want a discreet headset for phone calls, TV, or quiet conversation help, this is heavier machinery than you need — the plastic open-ear build is made to stay put during hard exercise, not to disappear in a meeting.
The Blue Deer U1 comes at the problem from the opposite direction. It isn't a sports tank; it's a daily companion. The headline feature is its 2-in-1 nature: it switches between Sound Amplifier mode and Bluetooth mode, so the same device can amplify voices around you and also stream music or take calls as a wireless headphone. Blue Deer frames the whole brand around making hearing easier and keeping people connected to the voices that matter, and that philosophy shows in the feature list — crystal-clear voice pickup that's tuned to make human speech easier to follow, even in bustling or noisy environments.
Comfort is the second selling point. The open-ear design rests gently outside the ear canal instead of pressing into it, and at a mere 30g it's designed to feel barely there across long listening sessions, work, or workouts. If you've found traditional earbuds fatiguing after an hour or two, that's exactly the kind of complaint this shape is meant to answer. It's also genuinely simple to run: a 3-second long press powers it on or off, a single click cycles through multiple sound modes for different environments, and a double-click of the M button jumps into Bluetooth mode, with the white and green lights flashing alternately to show it's ready to pair.
Battery is split by mode, and that's worth understanding before you buy. Blue Deer rates it at up to 10 hours in Sound Amplifier mode on a single charge, and over 6 hours of playback in Bluetooth mode. So the longest runtime comes when you're using it as an amplifier, not as a music headphone. Water resistance is IPX5 — that's splash and sweat resistant, fine for workouts and outdoor activities and light rain, but it is not a swimming product and shouldn't be treated like one. It runs on a single included Lithium-Ion battery, pairs with a smartphone, and ships with a case.
Who should buy it: someone who wants one light, easy open-ear device for conversations in noisy rooms, TV listening, calls, and casual music — especially anyone who finds standard earbuds uncomfortable or who wants a simpler control scheme. Who should skip it: swimmers, divers, and anyone who needs offline music without a phone, because the U1 has neither underwater protection nor built-in storage.
• Best for swimming and diving → QAZITV Bone conduction headphones. IPX8 means it's built for the underwater environment; the U1's IPX5 is splash-resistant only.
• Best for phone-free workouts → QAZITV Bone conduction headphones. The 32GB MP3 player holds up to 9000 songs, so no device is required.
• Best for voice clarity and conversation → Blue Deer U1. Its amplifier mode and voice pickup are aimed squarely at making speech easier to follow in noisy places.
• Best for all-day light comfort → Blue Deer U1. At 30g with an open-ear fit, it's the lighter, less obtrusive wear of the two.
• Best for long single-session playback → QAZITV Bone conduction headphones. Up to 12 hours continuous, versus 10 hours in amplifier mode and about 6 hours in Bluetooth mode on the U1.
• Best for multi-device juggling → QAZITV Bone conduction headphones. Multi-point connection keeps a phone, laptop, and tablet paired at once.
• Best for TV, work, and outdoor errands → Blue Deer U1. Its recommended uses cover watching TV, outdoor activities, noisy environments, work, and workouts.
• Best for simple controls → Blue Deer U1. One long press, one click, one double-click — a very short learning curve.
In my opinion, these two barely compete for the same buyer. If water is anywhere in your routine, I'd buy the QAZITV Bone conduction headphones — IPX8, 32GB of onboard music, 12 hours of playback, and multi-point Bluetooth make it the more capable tool for training and swimming, and no amount of comfort tuning on the U1 replaces waterproofing. I'd choose the Blue Deer U1 instead if your day is about hearing people better: conversations, calls, TV, and light listening, in the lightest possible open-ear shell. Decide which of those two lives is yours, then check the current price on Amazon before you commit.
Yes. QAZITV rates it IPX8, meaning it's designed to be used in the underwater environment, and it has a 32GB MP3 player so you don't need a phone in the pool. Just remember to switch to MP3 mode when you're underwater. The U1 is IPX5, which is splash and sweat resistant, not swim-ready.
No. The U1 has no built-in music storage — it works in Sound Amplifier mode or streams over Bluetooth 5.3 from a paired smartphone. If you want offline music, the QAZITV headset's 32GB library is the one that plays without any device attached.
QAZITV advertises up to 12 hours of continuous playback and charges in about 2 hours. Blue Deer rates the U1 at up to 10 hours in Sound Amplifier mode and over 6 hours in Bluetooth mode. So the U1 lasts longest when amplifying, and the QAZITV lasts longest as a music player.
By the specs, the Blue Deer U1 — it weighs a mere 30g and uses an open-ear fit designed to avoid pressure in the ear canal, which suits long sessions at work or in front of the TV. The QAZITV is also open-ear and lightweight, but it's built to stay locked on during strenuous exercise rather than to vanish on your head.
I don't quote prices here because they change often. Both are sold on Amazon, so check the current price on Amazon for each before deciding — the button on this page takes you there.
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