A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If portability and use while exercising are important to you, the Razer Hammerhead True Wireless earbuds are smaller, lighter, and sweatproof, making them a great choice for an active lifestyle. They also provide a low-latency mode which is excellent for gaming. However, they have a shorter battery life compared to the Sennheiser 450BT. The Sennheiser headphones, on the other hand, offer better noise isolation and slightly better audio for TV and video with support for AptX Low Latency codec. They're more suitable for long listening sessions due to comfort and a longer battery life, but they are bulkier and less convenient to carry around. If you take a lot of calls or meetings, both have good mic quality, but Sennheisers edge out slightly in the calls and meetings audio department. 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 Razer Hammerhead True Wireless
- Good for exercise
Advantages of the Sennheiser 450BT
- Very good for TV and video
- Excellent for air travel
- Good for podcasts and audiobooks
Key differences
Phone Calls
5.4
6.9
The Sennheiser 450BT is only fair for phone calls, while the Razer Hammerhead True Wireless is poor.
Podcasts and Audiobooks
5.6
7.9
The Sennheiser 450BT is good for podcasts and audiobooks, while the Razer Hammerhead True Wireless is poor.
Noise Reduction
8.1
9.1
The Sennheiser 450BT is excellent for noise reduction, while the Razer Hammerhead True Wireless is very good.
Battery
5.0 Hours
27.5 Hours
The Razer Hammerhead True Wireless has 5 hours of battery life. The Sennheiser 450BT has 27.5 hours of battery life.
Cost
$95
$139
$0
$50
$100
$150
$200
The Razer Hammerhead True Wireless has a price of $95 and the Sennheiser 450BT costs $139.
Build Quality
8.7
8.0
The Razer Hammerhead True Wireless and Sennheiser 450BT both have very good build quality, though the Razer Hammerhead True Wireless has somewhat better build quality.
Let Us Help Find Your Perfect Headphones
Find your new headphones
Key similarities
Music
6.6
6.2
The Razer Hammerhead True Wireless and Sennheiser 450BT are both only fair for music.
Gaming
8.6
8.8
The Sennheiser 450BT and Razer Hammerhead True Wireless are both very good for gaming.
TV and Video
7.9
8.1
Although they have very similar scores, PerfectRec considers Sennheiser 450BT to be very good for TV and video, while the Razer Hammerhead True Wireless is good.
Give feedback
We’re constantly working to improve.
How the Razer Hammerhead True Wireless and the Sennheiser 450BT compare to other earbuds and headphones
Spec Comparison
 |  | |
| Razer Hammerhead True Wireless | Sennheiser 450BT |
GENERAL | |||
|---|---|---|---|
| Price | |||
$95 | $139 | ||
Brand | |||
Brand | Razer | Sennheiser | |
Release Date | |||
Release Date | August 1, 2021 | February 1, 2020 | |
Form Factor | |||
Form Factor | Earbuds | Headphones | |
Connectivity | |||
Connectivity | Wireless | Wired + Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.6/10 | 6.2/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.5/10 | 7/10 | |
Gaming Score | |||
Gaming Score | 8.7/10 | 8.9/10 | |
TV and Video Score | |||
TV and Video Score | 7.9/10 | 8.1/10 | |
Exercise Score | |||
Exercise Score | 7.3/10 | 6.1/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 5 Hours | 27.5 Hours | |
Wireless charging | |||
Wireless charging | No | No | |
Charging time | |||
Charging time | 1 Hours | 2.3 Hours | |
Bluetooth version | |||
Bluetooth version | 5.2 | 5 | |
Case Battery Life | |||
Case Battery Life | 36 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | Yes | |
Noise Reduction Score | |||
Noise Reduction Score | 8.2/10 | 9.1/10 | |
Virtual Surround | |||
Virtual Surround | No | No | |
Android App | |||
Android App | Yes | Yes | |
iOS App | |||
iOS App | Yes | Yes | |
Mic Quality | |||
Mic Quality | 8.5/10 | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.7/10 | 8/10 | |
Comfort score | |||
Comfort score | 8.2/10 | 7/10 | |
Size | |||
Size | Small | N/A | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 5 Grams | 240.4 Grams | |
Microphone style | |||
Microphone style | Integrated | Integrated | |
Shopping
Razer Hammerhead True Wireless
See more
Dig into reviews and images
The Verge
Chris Welch | August 2019
"This latest set is more “Pro” than not in both looks and features: they offer active noise cancellation, a low-latency gaming mode, and have switched to a in-ear design with silicone tips. Just like many of the company’s laptops and gaming accessories, the 2021 Hammerhead True Wireless include Razer’s full Chroma RGB system. It makes for what Razer calls “the ultimate wireless earbud flex.”"
Sennheiser 450BT
See more
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."
Get a great deal on the Razer Hammerhead True Wireless or the Sennheiser 450BT
About Razer
Razer is an American-Singaporean hardware manufacturer aimed specifically toward the gaming market. They manufacture a very wide array of gaming laptops, tablets, phones, peripherals and, of course, headphones and earbuds both wired and wireless. Since 2016, Razer has owned the THX suite, aimed at quality assurance of audiovisual systems such as speaker sets, video game consoles and even movie theaters.
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.
Give feedback
We're constantly perfecting our model
Earbuds or Headphones guides you might be interested in
More comparisons for you
Compare Razer Hammerhead True Wireless vs. HyperX Cloud II
VS
Compare Razer Hammerhead True Wireless vs. Audio Technica ATH M40X
VS
Compare Razer Hammerhead True Wireless vs. Jabra Elite 4
VS
Compare Sennheiser 450BT vs. Skullcandy Hesh ANC
VS
Compare Sennheiser 450BT vs. Philips Fidelio X2HR
VS
Compare Sennheiser 450BT vs. JBL Live 770NC
VS
FAQs
FAQs about earbuds and headphones
Why trust us
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.
By the numbers
108
Earbuds and headphones evaluated
11,340
Earbuds and headphones stats compiled
15
Proprietary Earbuds and headphones ratings developed
93,500
Recommendations made
14,025
Consumer hours saved
About the Earbuds or Headphones team
Joe Golden, Ph.D
CEO and Earbuds and Headphones Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
Luis Torres
Earbuds and Headphones Expert
Luis is a Mexico-based headphones expert. He’s been making headphone recommendations for five years and has close to 100 pairs in his personal collection.
Featured in
