A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
CX300S
Company ProductName Specs




Space Q45
Company ProductName Specs




What we think

Chevron down
PerfectRec Logo
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·

If you value superior overall sound quality, active noise canceling, and longer battery life along with integrated app features for customization, the Soundcore Space Q45 may be worth the added cost. On the other hand, if you prefer a more affordable and more portable option that also offers better performance for calls and meetings, the Sennheiser CX300S could be the more suitable choice, but this comes without active noise canceling and a shorter battery life. The Sennheiser is wired, catering to those who don't want to worry about battery or prefer the reliability of a physical connection, while the Soundcore provides the convenience of wireless listening. 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 CX300S
  • Good for TV and video
Advantages of the Soundcore Space Q45
  • Good for music
  • Excellent for air travel

Key differences

Chevron down

Gaming

6.1
CX300S
Space Q45
5.4
The Sennheiser CX300S is only fair for gaming, while the Soundcore Space Q45 is poor.

Phone Calls

3.0
CX300S
Space Q45
4.9
The Soundcore Space Q45 and Sennheiser CX300S are both poor for phone calls, though the Soundcore Space Q45 is somewhat better.

Podcasts and Audiobooks

4.7
CX300S
Space Q45
5.9
The Soundcore Space Q45 and Sennheiser CX300S are both poor for podcasts and audiobooks, though the Soundcore Space Q45 is somewhat better.

TV and Video

7.3
CX300S
Space Q45
5.6
The Sennheiser CX300S is good for TV and video, while the Soundcore Space Q45 is poor.

Noise Reduction

7.0
CX300S
Space Q45
8.7
The Soundcore Space Q45 is very good for noise reduction, while the Sennheiser CX300S is good.

Battery

N/A
CX300S
Space Q45
41.0 Hours
The Sennheiser CX300S does not have a battery. The Soundcore Space Q45 has 41 hours of battery life.

Cost

$50
CX300S
Space Q45
$130
Product image
Product image

$0

$50

$100

$150

$200

The Sennheiser CX300S has a price of $50 and the Soundcore Space Q45 costs $130.
Image of Earbuds & Headphones
Let Us Help Find Your Perfect Headphones
Find your new headphones

Key similarities

Chevron down

Music

6.9
CX300S
Space Q45
7.1
Although they have very similar scores, PerfectRec considers Soundcore Space Q45 to be good for music, while the Sennheiser CX300S is only fair.

Build Quality

8.0
CX300S
Space Q45
8.5
The Soundcore Space Q45 and Sennheiser CX300S both have very good build quality.

Give feedback

We’re constantly working to improve.

How the Sennheiser CX300S and the Soundcore Space Q45 compare to other earbuds and headphones

Chevron down

Spec Comparison

Chevron down
Sennheiser CX300SSoundcore Space Q45
Sennheiser CX300SSoundcore Space Q45

GENERAL

Price
$50
$130
Brand
SennheiserSoundcore
Release Date
February 1, 2019August 1, 2022
Form Factor
EarbudsHeadphones
Connectivity
WiredWired + Wireless

SOUND

Music Score
7/107.1/10
Phone Calls Score
3.1/105/10
Gaming Score
6.1/105.4/10
TV and Video Score
7.4/105.7/10
Exercise Score
4.2/106.2/10

PERFORMANCE

Battery life
N/A41 Hours
Wireless charging
N/ANo
Charging time
N/A1.8 Hours
Bluetooth version
N/A5.3

FEATURES

Active Noise Cancelling
NoYes
Noise Reduction Score
7/108.8/10
Virtual Surround
NoNo
Android App
N/AYes
iOS App
N/AYes
Mic Quality
N/A6/10

BUILD AND DESIGN

Build Quality
8/108.5/10
Comfort score
7.6/107.6/10
Size
SmallN/A
Weight (headset or single earbud)
12 Grams294.8 Grams
Microphone style
N/AIntegrated

Shopping

Chevron down

Sennheiser CX300S

See more

Dig into reviews and images

Major HiFi

Carroll Moore | April 2019
"Sennheiser offers impressive bang for your buck when it comes to the CX 300S. Built like a tank and sounding surprisingly good for such a budget-minded earphone, the CX 300S out-classes many of its would-be competitors. Functional but beautiful, it’s the perfect in-ear listening solution for anyone who wants to hear everything and look good doing it."

Soundcore Space Q45

See more

Dig into reviews and images

Sound Guys

Riley Ballantyne | June 2023
"The Anker Soundcore Space Q45 is a great pair of active noise canceling (ANC) headphones, and the $150 USD price tag only sweetens the deal. Unlike many mid-tier wireless headphones, the Q45 microphone system rejects quite a bit of background noise, making this a great work headset too."

Get a great deal on the Sennheiser CX300S or the Soundcore Space Q45

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.

About Soundcore

Soundcore is a sub-brand belonging to Anker Innovations. Starting in 2014, initially marketing wireless, Bluetooth, speakers, Anker now offers an array of, budget-friendly, wireless earbuds and headphones that directly compete, especially in the Active Noise Canceling field, with other brands several times as expensive.

Give feedback

We're constantly perfecting our model

Earbuds or Headphones guides you might be interested in

Chevron down

FAQs

Chevron down

FAQs about earbuds and headphones

Questions about PerfectRec >

Why trust us

Chevron down
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
94,700
Recommendations made
14,205
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

Color LTT LogoGeekwire logo9to5 Mac logoPhone Arena LogoColor Daring Fireball logo