If you want a closed-back wired headphone that can connect to phones, tablets, and computers, choose SIVGA SV021; if you need an open-back planar headphone for home listening, choose FiiO FT1. For nurses choosing headphones for quiet, off-duty listening, I’d lean toward the SV021’s closed-back design and broad device compatibility.
SIVGA SV021 vs FiiO FT1 at a Glance
• SIVGA SV021: A 50 mm dynamic driver, 32-ohm impedance, and wired 3.5 mm connection make it a flexible choice for common audio devices. Its main trade-off is that it is wired and has no noise control.
• FiiO FT1: A planar magnetic driver and a stated frequency range of 20 Hz–40 kHz suit focused home listening. Its open-back design is less suited to listening where you want sound contained around you.
• Choose the SV021 if you want closed-back over-ear headphones with natural wood construction and straightforward compatibility with phones, tablets, and computers.
• Choose the FT1 if you want an open-back planar design and are comfortable using wired headphones in a more private setting.
• For nurses: The SV021 is the more practical fit for personal listening away from work duties; neither is a substitute for equipment intended to keep you alert to workplace sounds.
The SV021 is a wired, closed-back, over-ear headphone with a 50 mm dynamic driver and 32-ohm impedance. That combination points to a relatively uncomplicated setup: it can connect to phones, tablets, and computers, rather than requiring a dedicated professional player. It uses a 3.5 mm jack, and the included accessories list a cable with dual 2.5 mm connectors and a 3.5 mm plug, plus a 6.35 mm adapter.
Its natural wood construction gives the SV021 a more distinctive look than a plain plastic shell. The product information identifies the enclosure as wood, and the design is described as handcrafted, so the grain varies between headphones. The earpads are detachable, while the adjustable headband is designed to fit different head sizes. The listed weight is 320 g; that is a useful consideration for anyone deciding whether an over-ear wired headphone feels appropriate for longer listening sessions.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-21 · 7 min read · Independent comparison
For nurses, that straightforward connection can make sense for listening during personal time, especially if the device is a phone or computer. It is not an in-ear model, despite searches such as “best in ear headphones for nurses,” and it is not described as a work headset. People searching for the “best kids headset for nurses” are also looking at the wrong category: the SV021 is identified for adults, not children.
Who should skip it: Skip the SV021 if you specifically want an open-back planar headphone or a model with built-in noise control.
The FT1 is an open-back, wired over-ear headphone built around a planar magnetic driver. Its listed frequency range is 20 Hz–40 kHz, compared with the SV021’s 20 Hz–20 kHz. FiiO’s product information emphasizes a large, 95 × 86 mm flat unit and a design intended to provide a wide lateral soundstage. That makes this the more specialized option for someone who wants a spacious presentation for home listening, rather than a closed-back design.
The driver uses a 1 μm PET-substrate diaphragm with sapphire and aluminum coatings. FiiO says those coatings are intended to support frequency response, detail, and coil conductivity. The product information also describes a uniform magnetic field design intended to reduce uneven diaphragm movement. Those are design claims, not a guarantee that every listener will prefer its sound. The practical takeaway is that the FT1’s appeal is strongly tied to its planar construction and open-back format.
FiiO lists the FT1 at about 374 g, heavier than the SV021’s listed 320 g. It connects by cable through a 3.5 mm jack and has no noise control. The data identifies plastic, silicone, and fabric among its enclosure materials, rather than the SV021’s wood construction. The product is presented for home, studio, and recording use, so it may suit someone who can listen in a quiet space and values its open design over a more contained headphone.
For nurses, the FT1 can be a home or off-duty listening choice if an open-back headphone fits the environment. It is less naturally suited to situations where you want to keep sound from escaping or avoid disturbing people nearby. Its wired connection also means it is not a wireless option for moving around.
Who should skip it: Skip the FT1 if you need a closed-back headphone, want wireless listening, or need built-in noise control.
Side-by-Side: Which Should You Choose?
• Best for a planar magnetic design → FiiO FT1. Its driver is planar magnetic, with a large flat unit and a stated frequency range up to 40 kHz.
• Best for a closed-back listening format → SIVGA SV021. Choose it if you prefer a design that encloses the ear rather than an open-back headphone.
• Best for an open, spacious presentation → FiiO FT1. FiiO describes a wide lateral soundstage as a design goal, which may appeal to listeners seeking a more open feel.
• Best for distinctive natural materials → SIVGA SV021. Its wood enclosure has individually varying grain, and its earpads are detachable.
• Best for a lower listed weight → SIVGA SV021. It is listed at 320 g, while the FT1 is about 374 g.
• Best for a wider stated frequency range → FiiO FT1. Its range is listed as 20 Hz–40 kHz; the SV021 is listed at 20 Hz–20 kHz.
• Best for nurses wanting headphones for personal listening away from work → SIVGA SV021. The closed-back format is the more practical match here, though neither product has noise control or is described as a workplace headset.
I would choose the SIVGA SV021 for nurses looking for a straightforward, wired headphone for personal listening away from work. Its 32-ohm impedance, compatibility with phones and computers, closed-back design, and lower listed weight make it the more versatile fit for everyday use.
The FT1 has a clear appeal for listeners who specifically want an open-back planar headphone, but that is a narrower use case. For my needs, the SV021’s combination of device flexibility and closed-back construction makes the more practical choice.
Before choosing, consider where you will listen. The SV021’s closed-back design and the FT1’s open-back design create different listening setups, but neither has a listed noise-control feature. If you need to hear what is happening around you, do not assume either headphone provides a safety feature; if you need to reduce outside sound, neither sheet supports a claim that it will do so.
Also check the connection your device supports. Both headphones are wired and use a 3.5 mm jack. The SV021’s listed accessories include a 6.35 mm adapter, which may be useful with equipment that accepts that plug. The FT1’s listed connection is also wired, so it is not the choice for someone seeking a wireless headset.
FAQ
For personal listening away from work, I’d choose the SV021 because it is closed-back and is listed as compatible with phones, tablets, and computers. Neither model has noise control, and neither is identified as a work or safety headset.
No. Both are wired headphones with a 3.5 mm jack. Choose a different type of product if wireless listening is essential.
The SV021 uses a 50 mm dynamic driver and lists a 20 Hz–20 kHz frequency range. The FT1 uses a planar magnetic driver and lists 20 Hz–40 kHz, along with an open-back design.
Consider the FT1 if you specifically want an open-back planar design and can listen in a suitable setting. Consider the SV021 if you prefer a closed-back headphone, natural wood construction, or compatibility with common devices.
• Sony Mdrxb450Ap vs JBL Tune 680NC: Deep Bass Headphones
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.