How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a wired USB-C earphone with a built-in DAC chip, a magnetic neck-strap design and the widest device list in this comparison, choose Ruilezyo USB C Headphones; if you need a newer model with a bass-forward stereo tuning, noise-canceling wording and its own dedicated volume control, choose Radidi USB C Headphone.
• Ruilezyo USB C Headphones — biggest strength: A built-in DAC chip that converts digital input and aims at high-fidelity, lossless-style playback, plus a magnetic design that lets the buds hang around your neck instead of tangling in a pocket.
• Ruilezyo USB C Headphones — biggest trade-off: No noise control is listed, so it isolates sound purely through its in-ear seal, and the feature description is broader than it is deep.
• Radidi USB C Headphone — biggest strength: A current-generation compatibility list (iPhone 17 and Galaxy S26 lines, Pixel 10) with bass stereo tuning and noise-canceling wording, in a compact 4 x 2.5 x 1 inch body.
• Radidi USB C Headphone — biggest trade-off: The spec sheet is noticeably thinner — no DAC chip, impedance, driver type or frequency range is stated, so you are buying on the feature list alone.
• Who each pick is for: Ruilezyo for buyers who care most about broad device support and a DAC-backed wired signal path; Radidi for buyers pairing a brand-new phone who want bass emphasis and on-earbud volume control.
Ruilezyo positions this as a workhorse wired USB-C earphone. The headline feature is the built-in DAC chip, which takes the digital signal over the Type-C jack and converts it so the earbuds can output what the brand describes as high-fidelity, lossless sound. In practical terms, that matters on phones that dropped the headphone jack: the DAC is doing the job your phone's internal audio hardware used to do, and a dedicated chip in the cable is a legitimate reason some wired buds sound better than a cheap dongle.
The second thing that stands out is the magnetic design. When you pull the earbuds out to talk to someone, the two buds snap together and the cable hangs around your neck instead of dropping to the floor or balling up in your pocket. It is a small convenience, but it is the kind of small convenience you notice every single day if you commute or take calls on the move.
The fit story is standard in-ear: an ergonomic bud shape that seals into the ear canal, with S/M/L ear tips included so you can size it to your ears. That seal is what gives you the noise blocking here, because no active noise control is listed. The cable runs 3.9 ft (1.2 m), which is a normal length for pocket-to-ear use, and the in-line controls handle volume and playback.
The compatibility list is the real argument for Ruilezyo. It covers a huge spread of Samsung Galaxy A, S, M, C and F series phones, the Tab S5e through S9 tablets, iPhone 15 and 16 families, iPad 10, iPad Pro and Mini 6, a long list of Google Pixel models, OnePlus from the 6T up to the 10T, and MacBook Pro 13/14/16-inch. If you own two or three of those devices, or you hand the same pair between a phone and a laptop, that breadth is worth a lot. The audio specs are also stated plainly: 16 ohm impedance, dynamic driver, 20 Hz – 20,000 Hz.
Buy it if: you want one wired USB-C pair that travels across a Samsung phone, an iPad and a laptop, and you like the idea of a DAC chip in the cable.
Skip it if: you need active noise cancellation, or you want a spec sheet that lists active noise reduction as a feature.
Radidi takes a different angle: newer phones, bass emphasis, and a feature labeling that leans into noise canceling. The compatibility list is the most current I have seen in this category — it explicitly names iPhone Air, iPhone 17, 17 Pro, 17 Pro Max, 16e, 15 and 14 families; Samsung Galaxy S26, S25 Edge, S25 Ultra, S25+, S25, S24 FE, S24 series, S23, S22, S21, S20; the A17, A16 5G, A15 5G, A14, A56, A36, A26, A54, A55, A35, A25, A06 5G and more; Z Fold 7/6/4/3 and Z Flip 7/6/5/4/3; Google Pixel 10 Pro XL, 10 Pro Fold, 10 Pro, 10a, 9 Pro XL, 9 Pro Fold, 9, 8a, 8 Pro, 7a, 6 and down to Pixel 3; LG G-series and Stylo; OnePlus 10T through 6T; and iPad Air 2022, iPad Pro 2021/2020/2018 and iPad Mini 6.
That is a genuinely broad net, and it is clearly aimed at someone who just bought a 2025 or 2026 phone and wants a wired option that will not be obsolete on arrival.
The sound position is "bass stereo" with "noise canceling" wording in the description. I want to be careful here: the sheet lists no impedance, no driver type and no frequency range, and no separate active noise-canceling chip is described. So read "noise canceling" as the passive, in-ear-seal kind of noise reduction — the bud plugs your canal, outside noise drops. That is still useful on a train, but it is not the same thing as battery-powered ANC, and Radidi does not claim a battery because there isn't one.
Physical details: 4 x 2.5 x 1 inches and 1.13 ounces, magnetic in-ear buds, a microphone for calls, and volume control. The dimensions suggest a compact, pocketable package rather than a bulky case. The model number is EASC07sKT, made by Shenzhen Maman Electronics Co., Ltd.
Buy it if: you have a 2025–2026 phone — especially a Galaxy S26/S25 Edge, an iPhone 17, or a Pixel 10 — and you want bass-forward wired earbuds with a built-in mic and volume control.
Skip it if: you want published audio specs (impedance, driver type, frequency response) to compare against, because Radidi does not disclose them.
• Best for published audio specs → Ruilezyo USB C Headphones. 16 ohm impedance, dynamic driver, 20 Hz – 20,000 Hz. Radidi lists none of these.
• Best for the newest phones → Radidi USB C Headphone. iPhone 17, Galaxy S26 and Pixel 10 are named on its list; Ruilezyo's list tops out around iPhone 16 and Galaxy S25.
• Best for a DAC-backed wired signal → Ruilezyo USB C Headphones. It is the only one of the two that states a built-in DAC chip.
• Best for bass emphasis → Radidi USB C Headphone. Its tuning is described as bass stereo; Ruilezyo describes balanced stereo and passive isolation.
• Best for tangle-free carrying → Ruilezyo USB C Headphones. Magnetic buds plus a stated 3.9 ft (1.2 m) cable. Radidi is also magnetic, but no cable length is given.
• Best for a compact, lightweight package → Radidi USB C Headphone. 4 x 2.5 x 1 inches at 1.13 ounces, stated directly.
• Best for laptop and tablet duty → Ruilezyo USB C Headphones. It explicitly covers MacBook Pro 13/14/16-inch and the Galaxy Tab S series, which few wired buds bother to list.
• Best for buyers who want a warranty stated up front → Ruilezyo USB C Headphones. 12-month guarantee plus 180 days of free exchange and 24/7 support are spelled out. Radidi's sheet lists none.
In my opinion, Ruilezyo USB C Headphones is the safer buy for most people. It is the only one of the two that tells you what is actually inside — a DAC chip, a dynamic driver, 16 ohm impedance, a 20 Hz – 20,000 Hz range — and it covers laptops and tablets as well as phones. I would pick Radidi only if you have just bought an iPhone 17, a Galaxy S26 or a Pixel 10 and you specifically want bass-forward tuning on the newest hardware. Everyone else: go Ruilezyo, and check the current price on Amazon before you commit.
FAQ
Neither sheet describes a powered ANC system. Radidi uses "noise canceling" wording, but with no battery and no ANC chip listed, treat that as passive isolation from the in-ear seal. Ruilezyo states no noise control at all, so its blocking also comes from the fit.
Ruilezyo lists iPhone 15 and 16 families. Radidi lists iPhone 15, 16, 16e, 17, 17 Pro, 17 Pro Max and iPhone Air. If you are on a 17-series iPhone, Radidi names it and Ruilezyo does not.
By the descriptions, Ruilezyo aims at balanced, high-fidelity playback through its DAC, while Radidi leans into bass. Ruilezyo also publishes a 20 Hz – 20,000 Hz range; Radidi publishes no frequency range, so there is nothing to compare numerically.
I do not quote prices here because they change constantly. Use the "Check latest price on Amazon" button on this page to see the current price for each before you decide.
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