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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If portability and convenience are a priority for you, Razer Hammerhead True Wireless earbuds would be the better choice due to their compact and cable-free design, making them ideal for active use cases like exercise or commuting. However, if you prioritize sound quality and better battery life, the Sennheiser HD 350BT headphones offer superior audio performance and longer listening times, though they are bulkier and may not be as convenient for on-the-go scenarios. Although the Razer may be slightly less expensive, the Sennheiser headphones may justify their higher cost with better audio quality for focused listening sessions at home or in a quiet environment. Both options lack active noise cancellation, but if you often make calls or play games, consider the microphone quality and low-latency features, which could be more advanced in one than the other. 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 HD 350BT
- Good for music
- Good for phone calls
- Excellent for gaming
- Excellent for TV and video
- Very good for podcasts and audiobooks
Key differences
Phone Calls
5.4
7.4
The Sennheiser HD 350BT is good for phone calls, while the Razer Hammerhead True Wireless is poor.
Podcasts and Audiobooks
5.6
8.3
The Sennheiser HD 350BT is very good for podcasts and audiobooks, while the Razer Hammerhead True Wireless is poor.
TV and Video
7.9
9.0
The Sennheiser HD 350BT is excellent for TV and video, while the Razer Hammerhead True Wireless is good.
Noise Reduction
8.1
6.0
The Razer Hammerhead True Wireless is very good for noise reduction, while the Sennheiser HD 350BT is only fair.
Battery
5.0 Hours
33.0 Hours
The Razer Hammerhead True Wireless has 5 hours of battery life. The Sennheiser HD 350BT has 33 hours of battery life.
Cost
$100
$80
$40
$60
$80
$100
$120
$140
$160
The Razer Hammerhead True Wireless has a price of $100 and the Sennheiser HD 350BT costs $80.
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Key similarities
Music
6.6
7.0
Although they have very similar scores, PerfectRec considers Sennheiser HD 350BT to be good for music, while the Razer Hammerhead True Wireless is only fair.
Gaming
8.6
9.1
Although they have very similar scores, PerfectRec considers Sennheiser HD 350BT to be excellent for gaming, while the Razer Hammerhead True Wireless is very good.
Build Quality
8.7
8.2
The Razer Hammerhead True Wireless and Sennheiser HD 350BT both have very good build quality.
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How the Razer Hammerhead True Wireless and the Sennheiser HD 350BT compare to other earbuds and headphones
Spec Comparison
 |  | |
| Razer Hammerhead True Wireless | Sennheiser HD 350BT |
GENERAL | |||
|---|---|---|---|
| Price | |||
$100 | $80 | ||
Brand | |||
Brand | Razer | Sennheiser | |
Release Date | |||
Release Date | August 1, 2021 | January 1, 2020 | |
Form Factor | |||
Form Factor | Earbuds | Headphones | |
Connectivity | |||
Connectivity | Wireless | Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.6/10 | 7/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.5/10 | 7.4/10 | |
Gaming Score | |||
Gaming Score | 8.7/10 | 9.1/10 | |
TV and Video Score | |||
TV and Video Score | 7.9/10 | 9.1/10 | |
Exercise Score | |||
Exercise Score | 7.3/10 | 6.3/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 5 Hours | 33 Hours | |
Wireless charging | |||
Wireless charging | No | No | |
Charging time | |||
Charging time | 1 Hours | 2 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 | No | |
Noise Reduction Score | |||
Noise Reduction Score | 8.2/10 | 6/10 | |
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 | 8.2/10 | |
Comfort score | |||
Comfort score | 8.2/10 | 7.6/10 | |
Size | |||
Size | Small | N/A | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 5 Grams | 238 Grams | |
Microphone style | |||
Microphone style | Integrated | Integrated | |
Shopping
Razer Hammerhead True Wireless
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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 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 Razer Hammerhead True Wireless or the Sennheiser HD 350BT
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.
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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.
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About the Earbuds or Headphones team
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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.
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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.
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