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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you prioritize wireless connectivity and are willing to invest in a midrange price point, the Bowers and Wilkins Pi7 S2 is suitable, offering strong noise isolation, active noise canceling, and a compact form factor for air travel. However, for budget-conscious individuals who prefer stellar wired audio performance, the Moondrop Chu boasts excellent overall sound quality and mic quality, making them a reliable choice for calls and gaming. The Pi7 S2 is tailored with features like ear detection and has a shorter battery life, while the Moondrop Chu impresses with its high durability and secure fit accessories for a stable in-ear experience. 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 Bowers and Wilkins Pi7 S2
- Very good for air travel
Advantages of the Moondrop Chu
- Very good for phone calls
- Very good for gaming
- Good for TV and video
- Good for podcasts and audiobooks
Key differences
Gaming
5.3
8.0
The Moondrop Chu is very good for gaming, while the Bowers and Wilkins Pi7 S2 is poor.
Phone Calls
5.2
8.8
The Moondrop Chu is very good for phone calls, while the Bowers and Wilkins Pi7 S2 is poor.
Podcasts and Audiobooks
5.6
7.6
The Moondrop Chu is good for podcasts and audiobooks, while the Bowers and Wilkins Pi7 S2 is poor.
TV and Video
6.0
7.5
The Moondrop Chu is good for TV and video, while the Bowers and Wilkins Pi7 S2 is only fair.
Noise Reduction
8.3
6.0
The Bowers and Wilkins Pi7 S2 is very good for noise reduction, while the Moondrop Chu is only fair.
Battery
5.0 Hours
N/A
The Bowers and Wilkins Pi7 S2 has 5 hours of battery life. The Moondrop Chu does not have a battery.
Cost
$127
$22
$0
$50
$100
$150
$200
The Bowers and Wilkins Pi7 S2 has a price of $127 and the Moondrop Chu costs $22.
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Key similarities
Music
7.5
7.9
The Moondrop Chu and Bowers and Wilkins Pi7 S2 are both good for music.
Build Quality
8.9
8.5
The Bowers and Wilkins Pi7 S2 and Moondrop Chu both have very good build quality.
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How the Bowers and Wilkins Pi7 S2 and the Moondrop Chu compare to other earbuds and headphones
Spec Comparison
 |  | |
| Bowers and Wilkins Pi7 S2 | Moondrop Chu |
GENERAL | |||
|---|---|---|---|
| Price | |||
$127 | $22 | ||
Brand | |||
Brand | Bowers and Wilkins | Moondrop | |
Release Date | |||
Release Date | January 1, 2023 | April 1, 2022 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7.5/10 | 8/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.2/10 | 8.9/10 | |
Gaming Score | |||
Gaming Score | 5.4/10 | 8.1/10 | |
TV and Video Score | |||
TV and Video Score | 6/10 | 7.6/10 | |
Exercise Score | |||
Exercise Score | 6.3/10 | 4.4/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 5 Hours | N/A | |
Wireless charging | |||
Wireless charging | Yes | N/A | |
Charging time | |||
Charging time | 0.75 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5 | N/A | |
Case Battery Life | |||
Case Battery Life | 13 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | No | |
Noise Reduction Score | |||
Noise Reduction Score | 8.4/10 | 6/10 | |
Virtual Surround | |||
Virtual Surround | No | N/A | |
Android App | |||
Android App | Yes | N/A | |
iOS App | |||
iOS App | Yes | N/A | |
Mic Quality | |||
Mic Quality | 7/10 | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.9/10 | 8.5/10 | |
Comfort score | |||
Comfort score | 8/10 | 7/10 | |
Size | |||
Size | Large | Large | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 7 Grams | 8 Grams | |
Microphone style | |||
Microphone style | Integrated | In-Line | |
Shopping
Bowers and Wilkins Pi7 S2
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Dig into reviews and images
Engadget
Billy Steele | March 2023
"While the overall sound quality is great, these earbuds fall short in terms of battery life, customization and ANC performance. Bowers & Wilkins’ ability to consistently deliver pristine sound isn’t enough to make up for what the Pi7 S2 lacks, which is unfortunately quite a bit."
Moondrop Chu
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Dig into reviews and images
Sound Guys
Jasper Lastoria | September 2022
"These budget buds put the pressure on those premium priced in-ear monitors to really justify the cost disparity. Offering excellent sound quality at any price, the Moondrop Chu is both a perfect entry into the audio enthusiast hobby, and an all around good pick for music fans."
Get a great deal on the Bowers and Wilkins Pi7 S2 or the Moondrop Chu
About Bowers and Wilkins
Bowers and Wilkins is a British audio equipment manufacturer with a focus on innovation and product development. It was founded by a couple of real-life James Bonds, the co-founders John Bowers and Roy Wilkins, who met while working for MI6 during World War II. The company keeps being favored by enthusiasts due to their sound quality, craftsmanship and signature aesthetics.
About Moondrop
Moondrop is a Chinese brand of smart audio equipment, portable audio players, earbuds and headphones started in 2015. During the last few years they have become one of the major players in what is lovingly referred to as the Chi-fi market, the bulk of Chinese companies that have managed to actually compete with the western manufacturers in both prices and superior quality. Products such as the Blessing II, Chu and Kato are among the most popular offerings of the brand, more popular among those users that wish for good quality audio that won't break the bank. Besides audio, the brand also works in what they call the ACGN field (Animation, Comics, Games and Short Novels).
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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
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.
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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.
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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.
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