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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you prioritize wireless convenience and active noise cancelling for environments like commuting or air travel, the Sennheiser 450BT may be the better choice; they also tend to be better suited for gaming due to low latency. However, they are more expensive than the HD 400S. In contrast, the Sennheiser HD 400S offers great value and are known for being more comfortable, which could be beneficial for long listening sessions. They do not have wireless capabilities or active noise cancellation, thus they could be less versatile but are a more budget-friendly option. 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 Sennheiser 450BT
- Very good for TV and video
- Excellent for air travel
Advantages of the Sennheiser HD 400S
- Good for music
- Very good for phone calls
Key differences
Music
6.2
7.1
The Sennheiser HD 400S is good for music, while the Sennheiser 450BT is only fair.
Phone Calls
6.9
8.2
The Sennheiser HD 400S is very good for phone calls, while the Sennheiser 450BT is only fair.
Noise Reduction
9.1
5.3
The Sennheiser 450BT is excellent for noise reduction, while the Sennheiser HD 400S is poor.
Battery
27.5 Hours
N/A
The Sennheiser 450BT has 27.5 hours of battery life. The Sennheiser HD 400S does not have a battery.
Cost
$90
$50
$0
$50
$100
$150
$200
The Sennheiser 450BT has a price of $90 and the Sennheiser HD 400S costs $50.
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Key similarities
Gaming
8.8
8.6
The Sennheiser 450BT and Sennheiser HD 400S are both very good for gaming.
Podcasts and Audiobooks
7.9
7.6
The Sennheiser 450BT and Sennheiser HD 400S are both good for podcasts and audiobooks.
TV and Video
8.1
7.6
Although they have very similar scores, PerfectRec considers Sennheiser 450BT to be very good for TV and video, while the Sennheiser HD 400S is good.
Build Quality
8.0
8.5
The Sennheiser HD 400S and Sennheiser 450BT both have very good build quality.
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How the Sennheiser 450BT and the Sennheiser HD 400S compare to other earbuds and headphones
Spec Comparison
 |  | |
| Sennheiser 450BT | Sennheiser HD 400S |
GENERAL | |||
|---|---|---|---|
| Price | |||
$90 | $50 | ||
Brand | |||
Brand | Sennheiser | Sennheiser | |
Release Date | |||
Release Date | February 1, 2020 | January 1, 2019 | |
Form Factor | |||
Form Factor | Headphones | Headphones | |
Connectivity | |||
Connectivity | Wired + Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.2/10 | 7.2/10 | |
Phone Calls Score | |||
Phone Calls Score | 7/10 | 8.2/10 | |
Gaming Score | |||
Gaming Score | 8.9/10 | 8.7/10 | |
TV and Video Score | |||
TV and Video Score | 8.1/10 | 7.7/10 | |
Exercise Score | |||
Exercise Score | 6.1/10 | 4.2/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 27.5 Hours | N/A | |
Wireless charging | |||
Wireless charging | No | N/A | |
Charging time | |||
Charging time | 2.3 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | No | |
Noise Reduction Score | |||
Noise Reduction Score | 9.1/10 | 5.3/10 | |
Virtual Surround | |||
Virtual Surround | No | No | |
Android App | |||
Android App | Yes | N/A | |
iOS App | |||
iOS App | Yes | N/A | |
Mic Quality | |||
Mic Quality | 8.5/10 | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8/10 | 8.5/10 | |
Comfort score | |||
Comfort score | 7/10 | 8.4/10 | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 240.4 Grams | 213 Grams | |
Microphone style | |||
Microphone style | Integrated | Integrated | |
Waterproof Rating | |||
Waterproof Rating | 0 | 0 | |
Shopping
Sennheiser 450BT
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Dig into reviews and images
Sound Guys
Lily Katz | March 2022
"The Sennheiser HD 450BT is a very good pair of headphones for the price, noise canceling is good and sound quality is great—quite rare at this price point. Like any product, this headset isn’t without its faults."
Sennheiser HD 400S
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Headphone Dungeon
Jim | August 2022
"Sennheiser has done it again. The HD 400S performs well beyond its price range and is one of the better budget model headphones I’ve tried. It has very few bells and whistles and offers a simple means of listening that still delivers amazing clarity and quality. If you need a good first pair of headphones or need something that you can take out of the house, then the HD 400S is definitely for you."
Get a great deal on the Sennheiser 450BT or the Sennheiser HD 400S
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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