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Bowers & Wilkins PI7 vs Sennheiser Momentum True Wireless 2 (2021): Which Wireless Earbuds Are Better?

The Bowers & Wilkins PI7 are the brands’ first true wireless earbuds. These premium earbuds come with features such as adaptive noise cancelling and a hybrid driver configuration, and they also support high-res Bluetooth audio codecs. However, they are much more expensive than the competition. So are these earbuds good and are they worth the premium price? Below is our Bowers & Wilkins PI7 review and comparison against another pair of true wireless earbuds from a highly regarded brand—the Sennheiser Momentum True Wireless 2.

Bowers & Wilkins PI7 vs Sennheiser Momentum True Wireless 2 Comparison Chart

ModelBowers & Wilkins PI7 Sennheiser Momentum True Wireless 2
 Bowers & Wilkins PI7 in-Ear True Wireless Headphones with 6 Built-in Mics, Bluetooth 5.0 with...SENNHEISER Momentum True Wireless 2 - Bluetooth in-Ear Buds with Active Noise Cancellation, Smart...
PriceCheck PriceCheck Price
Driver9.2mm dynamic driver
Balanced armature tweeter
7mm dynamic driver
IP RatingIP54IPX4
Frequency Response10 – 20 kHz5 โ€“ 21 kHz
Noise CancellationAdaptiveActive
TransparencyYesYes
ConnectivityBluetooth 5.0Bluetooth 5.1
CodecsSBC, AAC, aptX Classic, aptX HD, aptX Low Latency, aptX AdaptiveSBC, AAC, aptX
Battery4 hours
Additional 16 hours from charging case
7 hours
Additional 21 hours from charging case
Charging TimeQi wireless charging support
Full charge: 1 hour
Quick charge: 15mins. for 2 hours playtime
Full charge: 1.5 hours
Quick charge: 10 mins. for 1.5 hours playtime
Extra FeaturesBowers and & Wilkins Headphones app
Case audio retransmission
Sennheiser Smart Control app
Color OptionsCharcoal, WhiteBlack, White

Design

The Bowers & Wilkins PI7 looks more premium, but both of them are well-built.

bowers & wilkins pi7 vs sennheiser momentum true wireless 2 design
The Bowers & Wilkins PI7 (top) and the Sennheiser Momentum True Wireless 2 (bottom).

While looks are subjective, in this case, it’s safe to say that the Bowers & Wilkins PI7 have the more premium look than the Sennheiser Momentum True Wireless 2, especially with those brushed metal accents. The PI7 are available in either charcoal or white, while the Momentum 2 are available in black or white.

In terms of build quality, the two are excellent. Both pair of earbuds are made of dense plastic with some metal parts in the mix. You can drop these and they should be able to survive without any damage. The PI7 have an IP54 rating, meaning that they are protected against dust and water splashes, while the Momentum 2 have an IPX4 rating, so they are protected against splashes of water, but not from dust.

When it comes to comfort, these two are quite bulky, so they may put pressure inside of your ears when worn over an extended period. They will also protrude from the ears. That said, they don’t go too deep into your ears. Also, they come with three pairs of ear tips (s, m, l) so you can choose one that fits you best.

Their charging cases are about the same size, and they are small enough that they can fit inside pockets with ease. Both of them are made of plastic but they are solid and they feel durable. The case of the PI7 has a matte finish while the case of the Momentum 2 come with a fabric cover that feels nice to the touch.

Features

The Bowers & Wilkins PI7 and the Sennheiser Momentum True Wireless 2 perform similarly when it comes to ANC, but the latter has better controls and a more useful companion app.

bowers & wilkins pi7 vs sennheiser momentum true wireless 2 features
Both the B&W PI7 (left) and Sennheiser Momentum True Wireless 2 (right) have ANC, but the former has a more advanced adaptive tech.

Controls

The two earbuds feature touch-sensitive controls. You can easily control music playback, answer calls and so on. However, one disappointment with the Bowers & Wilkins PI7 is that it doesn’t have any sort of volume control on the earbuds. You’ll have to control the volume of your music via your phone. This is not an issue with the Sennheiser Momentum 2 since you can control the volume of your music by tapping and holding either the left or right earbuds.

Companion App

The companion apps that come with the two pairs of earbuds are basic. The Bowers & Wilkins Headphones app and the Sennheiser Smart Control are both compatible with iOS and Android apps, and they allow you to control the earbuds’ ANC and transparency modes. That’s basically all the B&W Headphones app can do, while the Sennheiser Smart Control also gives you EQ presets and the ability to remap controls. The Sennheiser app is clearly the winner here as it offers more customization options.

ANC

As for their active noise cancelling, both are good, with the Bowers & Wilkins slightly ahead. The adaptive noise cancelling of the PI7 is slightly better at blocking out noise in the bass-range, but overall, the two earbuds’ performance are comparable. You can adjust the level of noise cancellation using their companion apps.

Other Features

One feature that is exclusive to the Bowers & Wilkins PI7 is the ability of its case to act as a Bluetooth transmitter. You can connect a non-Bluetooth device to the PI7’s case via USB-C to USB-C or USB-C to 3.5mm and the case will transmit the audio to the earbuds. This is a nice feature if you have a DAP or digital audio player without Bluetooth or if you want to use it with any non-Bluetooth device.

The downside to this feature is that the range is quite limited. You’ll find that the earbuds will struggle to maintain connection when the case is not close to the earbuds. Also, the sound quality when using this mode is not as good when the earbuds themselves are connected to your audio source.

Sound Quality

The Bowers & Wilkins PI7 have a bass-heavy sound profile while the Sennheiser Momentum True Wireless 2 have a more neutral sound.

bowers & wilkins pi7 vs sennheiser momentum true wireless 2 sound quality
The B&W PI7 (left) and Sennheiser Momentum True Wireless 2 (right) with their respective charging cases.

When it comes to sound quality, the two are very different. The Bowers & Wilkins PI7 have a more bass-heavy sound signature where the bass is overemphasized to produce extra boom and thump when listening to bass-centered genres. The mid is accurate and pretty flat and neutral, so you can hear vocals and instruments in this range clearly. The treble range is fairly accurate and neutral without any harshness. Overall, the sound of the B&W PI7 is good, if you like to listen to genres that are bass-heavy.

On the other hand, the Sennheiser Momentum True Wireless 2 have a slightly more neutral sound signature. The bass is a little bit emphasized, but not enough that it overpowers the other frequencies in the mix. The mid is very accurate and detailed, while the treble is a bit underemphasized, so the overall sound can be a bit dull. An advantage of the Sennheiser Momentum True Wireless 2 is that they have EQ presets and EQ customization. So even if you don’t like the sound out-of-the-box, you can still tweak it to your liking.

Check out our Sennheiser CX 400BT vs Momentum 2 comparison here

Battery Life

The Sennheiser Momentum True Wireless 2 have a longer music playback time than the Bowers & Wilkins PI7.

bowers & wilkins pi7 vs sennheiser momentum true wireless 2 battery life
The Bowers & Wilkins PI7 (left) supports wireless charging but the Sennheiser Momentum True Wireless 2 (right) has a longer battery life.

When it comes to battery life, it’s a clear win for the Sennheiser Momentum True Wireless 2. Their overall music playback time is around 28 hours. The earbuds themselves can last for about 7 hours, while the charging case holds three extra charges.

Meanwhile, the Bowers & Wilkins PI7 only have a total of 20 hours battery life. The earbuds can last for 4 hours, while the charging case holds four extra charges, for a total of 20 hours. One advantage of the B&W PI7 is their wireless charging support.

Verdict

The Sennheiser Momentum True Wireless 2 offer better value for money than the Bowers & Wilkins PI7.

In summary, the Sennheiser Momentum True Wireless 2 are better than the Bowers & Wilkins PI7. They have a longer battery life, better controls and a more neutral sound. In addition, their sound can be tweaked to suit your preferences since the Sennheiser Smart Control app has graphic EQ and EQ presets. The only advantage of the Bowers & Wilkins PI7 is that their case can be used as a Bluetooth transmitter for non-Bluetooth audio devices. However, we don’t think that this feature is worth paying extra for.

FAQs

๐Ÿ“Œ Is Bowers & Wilkins a good brand?

Bowers & Wilkins is a British brand that’s popular with audiophiles. They are better known for their speakers, but they also have excellent headphones and earbuds.

๐Ÿ“Œ Do the Sennheiser MOMENTUM True Wireless 2 have noise cancelling?

Yes, the Sennheiser Momentum True Wireless 2 come with active noise cancelling and transparency modes.

๐Ÿ“Œ Are the Sennheiser Momentum 2 waterproof?

They have an IPX4 rating for water resistance. They aren’t completely waterproof but they are protected against splashes of water.

๐Ÿ“Œ Can I connect the Bowers & Wilkins to a PC?

Yes, you can use the case as a Bluetooth receiver to connect the PI7 to a PC.

Last update on 2021-07-19 / Affiliate links / Images from Amazon Product Advertising API

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Carlo Salvador

Senior Editor at Compare Before Buying. Writer and researcher passionate about fitness, gaming and music.