IP ratings is the rank of protection offered by an enclosure, against dust and liquids. In the format of IPXX, 'X' represents a number The first value represents protection against solids such as dust, while the second refers to resistance against liquids (water).
Having a value of IP54, the Momentum True Wireless 4's rating is read as, the first number of 5 denotes that ingress of dust is not totally prevented but dust does not enter in harmful quantities to interfere with the correct operation or impair safety, and of liquids that they can withstand low pressure spray similar to that of a shower head when tilted at 180° for 10 minutes. In comparison to the Momentum True Wireless 4, Bowers & Wilkins PI7 have a rating of IP54 meaning that
they both have the same rating against dust
and that of liquids is that,
they both have the same rating against liquids
Momentum True Wireless 4 have a weight of 12.4g . We take in account a lower weight better for the reason that lighter devices are easier to carry.
Bowers & Wilkins PI7, at 50g
weigh more than the Momentum True Wireless 4 by of 37.6g
True wireless devices have no wires connecting any part of the device together, Momentum True Wireless 4 are true wireless for this matter since they have no wires. This is a key difference as some wireless earbuds have wires linking the 2 earbuds together. Bowers & Wilkins PI7 also is true wireless because it has no wires connecting the 2 earbuds together.
Momentum True Wireless 4 have sweat resistance
Momentum True Wireless 4 are both dustproof and water-resistant. Momentum True Wireless 4 have stereo speakers, devices with stereo speakers deliver sound from separate channels on both left and right sides, creating a richer sound and a better listening experience. Both Bowers & Wilkins PI7 and Momentum True Wireless 4 have stereo speakers
ANC makes use of advanced kind of tech to reduce unwanted ambient sounds.
ANC works when, it listens to the sound pattern outside and inside the earbud and then generates a mirror signal to cancel it out. In simple terms, it's like taking +1 (sound from your surrounding) and adding -1 (inverted noise) giving zero thus "diluting" the noise.
Momentum True Wireless 4 have Active Noise Cancellation allowing you to listen at lower volume levels, causing less ear fatigue as you don't have to crank up the earbuds volume to overcome background sounds.
The Bowers & Wilkins PI7 too have ANC which makes either of the devices ideal for plane rides and morning travels. Each work with different noise cancellation modes, pick the noise cancellation type that suits your commute or that suites your chill time. The Momentum True Wireless 4 sit well in place, creating an acoustic seal that reduces background sounds well as preventing the earbuds music from leaking out at the same.
Both of these devices have passive noise reduction which means that both limit ambient noise without using ANC to cancel it out. The Momentum True Wireless 4 driver unit is 7mm in diameter, bigger drivers are more powerful, and can produce better bass. The driver unit is basically a mini speaker that makes sound in the device, the unit size dictates the loudness of the earbuds.
Bowers & Wilkins PI7 driver unit is 9.2mm in diameter,
making them have a larger driver unit than that of Momentum True Wireless 4 by 2.2mm
, as many tend to believe that driver units of a bigger size automatically produce better sound quality.
However, large drivers find it difficult to produce high frequencies so yes, larger drivers can generate louder sound, but this does not mean that they deliver better quality sound. The Momentum True Wireless 4's lowest frequency is at 5Hz, low-frequency response inidcates how well a particular audio component produces low frequencies that can be heard, and if it alters the signal while at it.
Bowers & Wilkins PI7's lowest frequency is at 10Hz, this implies that
Momentum True Wireless 4 can produce a juicier bass than the Bowers & Wilkins PI7
The Momentum True Wireless 4's highest frequency is at 21,000Hz, high-frequency response shows how well an audio device makes high audible frequencies and if it makes any adjustments to the signal while at it. Bowers & Wilkins PI7's highest frequency is at 20,000Hz, this implies that
Momentum True Wireless 4 can produce a clearer and crispier treble than the Bowers & Wilkins PI7
The sound pressure level, is the pressure level of sound, measured in decibels, dB, Momentum True Wireless 4's measurement is 107dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
Momentum True Wireless 4's battery life is 7.5 hours, these last longer than 5 hours of listening which is considered average for a single charge. A device's battery life is usually given by the manufacturer, and with more battery hours, you get to use it for longer and requires fewer chargings. Bowers & Wilkins PI7's battery life is
less than that of Momentum True Wireless 4 by 3 hours
. Each time you recharge your earbuds, they get a little less listening time.
The effect is barely noticeable at first, but over a few years, your wireless earbuds will have shorter listening time. The battery life of the charging case is given by the manufacturer, and Momentum True Wireless 4's case has a full charge of 22.5 hours. A charging case with a longer battery life allows you to recharge your earbuds on the go several times before having to recharge the case itself.
Bowers & Wilkins PI7's charging case has a battery life of 18 hours,
less than that of Momentum True Wireless 4 by 4.5 hours
It requires 1.5 hours to fully charge the Momentum True Wireless 4's battery. It is recommended to fully charge the battery before using the earbuds when they have been in storage for long periods. Bowers & Wilkins PI7 takes 3 hours to fully charge the battery,
more than that of Momentum True Wireless 4 by 1.5 hours
Momentum True Wireless 4, the device supports wireless charging.
To charge the device, you simply place down on a supported charging pad. Bowers & Wilkins PI7 also support wireless charging, always look out for the charging standard of a device. Momentum True Wireless 4 have a battery level indicator, an indicator notifies you when the device has a low battery.
Its lights indicate the charging state of your earbuds and charging case. Bowers & Wilkins PI7 too have a battery level indicator, charging indicators allow you determine the charging state of your device, whether fully charged, or having a low battery. The Momentum True Wireless 4 support USB TYPE-C, a standard connector for transmitting both data and power in a single cable.
Bowers & Wilkins PI7 too support USB TYPE-C. This USB-C plug is part and parcel of most current electronics. Momentum True Wireless 4 have Bluetooth version of 5.4, Bluetooth is a wireless technology standard that enables data transfers between devices placed in close proximity, using short-wavelength, ultra-high frequency radio waves.
Bowers & Wilkins PI7 has a Bluetooth version of 5,
older than that of Momentum True Wireless 4
. Newer versions provide faster data transfers. Momentum True Wireless 4 have a 10meters distance to connect via Bluetooth. Bowers & Wilkins PI7 have a maximum range of 10meters,
equal to that of the Momentum True Wireless 4
Momentum True Wireless 4 support AAC, a codec used for Bluetooth audio.
It supports 24-bit audio at 250kbps. Since it uses psychoacoustic modeling, it provides better results than other codecs at the same bit rate.
Since its the highest quality codec that any Bluetooth-supporting Apple product supports, the Momentum True Wireless 4 will work well with your iPad.
If you intend on using these with Android you need to pay even closer attention to codec support for if they only have AAC they won't provide the best audio quality possible, ensure that they also support aptX HD, LDAC, or LHDC as well. The Bowers & Wilkins PI7 support AAC as well. Designed to be the successor of the MP3 format, AAC generally achieves higher sound quality than MP3 encoders at the same bit rate.
Momentum True Wireless 4 support APTX Adaptive, an audio codec for Bluetooth devices that are developed by Qualcomm. It has a variable bit rate (between 279kbps and 420kbps).
Bowers & Wilkins PI7 support APTX Adaptive as well which means both can adjust the bit rate for different scenarios, such as listening to HD audio from other devices. The Momentum True Wireless 4 have 6 microphones.
The Bowers & Wilkins PI7 microphones are 6,
equal to that of the Momentum True Wireless 4
. More microphones record better sound quality and enable the device to filter out background sounds. Momentum True Wireless 4 have a noise-canceling microphone, these microphones are intended to reduce background sounds from the desired sound. The Bowers & Wilkins PI7 too have a noise-canceling microphone.
Especially useful in noisy environments. Momentum True Wireless 4's highest mic frequency is 10,000Hz, high frequencies are best for recording treble. The highest mic frequency of a microphone is defined as its upper limiting frequency.
Momentum True Wireless 4's lowest mic frequency is 100Hz, low frequencies are better for picking up bass. The lowest mic frequency of a microphone is defined as its lower limiting frequency. The Momentum True Wireless 4 support ambient sound mode, which uses microphones to pass through ambient sound so that they can still be heard even while wearing them
The Bowers & Wilkins PI7 support ambient sound mode as well, helpful when you want to listen to music while being aware of your surrounding, say you’re having a run but would still want to be able to hear traffic.
Momentum True Wireless 4 support fast charging. Most often, technologies like Qualcomm’s Quick Charge, are used to reduce the time it takes to charge a device. The Bowers & Wilkins PI7 support fast charging.
It's very similar to regular charging, only that the battery is filling up much faster. For example, with Quick Charge 3.0, the battery can be charged to 50% in thirty minutes. Momentum True Wireless 4 support multipoint of 2 connections, this feature allows you connect to more than one Bluetooth device and switch between them.
For example, you can easily switch calls from one device to another without manually disconnect and reconnect. Momentum True Wireless 4 have a mute function, they have the feature to mute/unmute a conversation directly from the earbuds. The Bowers & Wilkins PI7 too have this function.
It means that you unilaterally turn off the device's microphone, but you can still hear the other party's voice. With the Momentum True Wireless 4, so you can access the volume control, pause, play, mute, etc whichever functions are supported on the earbuds. The Bowers & Wilkins PI7 too have a control panel on them.
The Momentum True Wireless 4 have a warranty period of 2 Years, the period of time that warrant free repair and adjustment services in case of a malfunction occurring under normal use that has followed instruction manuals. The Momentum True Wireless 4 support voice prompts. With voice prompts, you receive information via audio messages, say if there is an issue with the connection.
Bowers & Wilkins PI7 also support voice prompts .i.e the device will notify you when the battery is low, and you need to recharge the earbuds. The Momentum True Wireless 4 come with their own special case. Carrying earbuds openly, or placing them in your pockets without a casing can easily put them at risk of getting damaged.
Bowers & Wilkins PI7 also have a travel bag included, which is useful for safe transportation.
