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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you prioritize sound quality and use your device primarily for music, the Sennheiser HD 350BT headphones offer superior sound and are more comfortable for long listening sessions. They also have the added convenience of wireless connectivity and a longer battery life, making them versatile for various activities including calls and meetings, and they are optimized for both Android and Apple devices with virtual surround capability. However, if you require the best in noise isolation for environments like air travel, or if you prefer a more portable and discreet option that is also great for exercise due to a secure in-ear fit, the Etymotic ER4XR earbuds would be the better choice despite their higher price. Keep in mind, the ER4XR are wired and have no microphone, whereas the HD 350BT offer a good mic for calls. Give Feedback
this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the Etymotic ER4XR
- Very good for music
Advantages of the Sennheiser HD 350BT
- Good for phone calls
- Excellent for gaming
- Excellent for TV and video
- Very good for air travel
- Very good for podcasts and audiobooks
Key differences
Music
8.0
7.0
The Etymotic ER4XR is very good for music, while the Sennheiser HD 350BT is good.
Gaming
6.2
9.1
The Sennheiser HD 350BT is excellent for gaming, while the Etymotic ER4XR is only fair.
Phone Calls
4.7
7.4
The Sennheiser HD 350BT is good for phone calls, while the Etymotic ER4XR is poor.
Podcasts and Audiobooks
7.3
8.3
The Sennheiser HD 350BT is very good for podcasts and audiobooks, while the Etymotic ER4XR is good.
TV and Video
7.4
9.0
The Sennheiser HD 350BT is excellent for TV and video, while the Etymotic ER4XR is good.
Noise Reduction
9.1
6.0
The Etymotic ER4XR is excellent for noise reduction, while the Sennheiser HD 350BT is only fair.
Battery
N/A
33.0 Hours
The Etymotic ER4XR does not have a battery. The Sennheiser HD 350BT has 33 hours of battery life.
Cost
$234
$80
$50
$100
$150
$200
$250
$300
$350
The Etymotic ER4XR has a price of $234 and the Sennheiser HD 350BT costs $80.
Build Quality
9.0
8.2
The Etymotic ER4XR has excellent build quality, while the Sennheiser HD 350BT has very good build quality.
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How the Etymotic ER4XR and the Sennheiser HD 350BT compare to other earbuds and headphones
Spec Comparison
 |  | |
| Etymotic ER4XR | Sennheiser HD 350BT |
GENERAL | |||
|---|---|---|---|
| Price | |||
$234 | $80 | ||
Brand | |||
Brand | Etymotic | Sennheiser | |
Release Date | |||
Release Date | June 1, 2016 | January 1, 2020 | |
Form Factor | |||
Form Factor | Earbuds | Headphones | |
Connectivity | |||
Connectivity | Wired | Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 8/10 | 7/10 | |
Phone Calls Score | |||
Phone Calls Score | 4.8/10 | 7.4/10 | |
Gaming Score | |||
Gaming Score | 6.3/10 | 9.1/10 | |
TV and Video Score | |||
TV and Video Score | 7.4/10 | 9.1/10 | |
Exercise Score | |||
Exercise Score | 4.1/10 | 6.3/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | N/A | 33 Hours | |
Wireless charging | |||
Wireless charging | N/A | No | |
Charging time | |||
Charging time | N/A | 2 Hours | |
Bluetooth version | |||
Bluetooth version | N/A | 5 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | No | |
Noise Reduction Score | |||
Noise Reduction Score | 9.1/10 | 6/10 | |
Virtual Surround | |||
Virtual Surround | N/A | No | |
Android App | |||
Android App | N/A | Yes | |
iOS App | |||
iOS App | N/A | Yes | |
Mic Quality | |||
Mic Quality | N/A | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 9/10 | 8.2/10 | |
Comfort score | |||
Comfort score | 6/10 | 7.6/10 | |
Size | |||
Size | Small | N/A | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 4 Grams | 238 Grams | |
Microphone style | |||
Microphone style | N/A | Integrated | |
Shopping
Etymotic ER4XR
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Dig into reviews and images
What HiFi?
What HiFi? | May 2015
"The Etymotic ER4XRs' top qualities are the detail and definition of the midrange, rewarding the closest listening. While the soundstage is large rather than gigantic, the excellent separation and spatial precision mean you can dive deep into music just as much as when wearing a pair of full-size open-backed headphones."
Sennheiser HD 350BT
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Dig into reviews and images
Soundguys
Lily Katz | September 2023
"Sennheiser nails just nearly everything about the Sennheiser HD 350BT headphones. Sound quality is excellent, and the high-quality Bluetooth codec support is a rarity at this price point. If you don’t care for high-tech features like automatic ear detection, you’ll be delighted with these portable headphones."
Get a great deal on the Etymotic ER4XR or the Sennheiser HD 350BT
About Etymotic
Etymotic Research is an American based research, development and manufacturing company founded in 1983. They invented the first insert earphones that were used for the diagnosis and research of hearing loss and other auditory disorders. They went on to pioneer the market of high fidelity, isolating, in-ear earphones.
About Sennheiser
A family-owned company, Sennheiser is a German, high fidelity, audio equipment manufacturer founded in 1945. Their consumer audio division is now owned by the Swiss hearing aid and cochlear implant manufacturer Sonova. Sennheiser offers a wide variety of, very high quality, audio equipment solutions, from headphones to earbuds, full sets of monitoring speakers, amplifiers and microphones. They also make what is widely regarded as the best, and most expensive, headphones in existence, the HE-1 Orpheus, costing a whopping $59,000 dollars.
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This information was produced and vetted by the PerfectRec earbuds & headphones team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest earbuds or headphones information and makes it digestible for you.
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