A breakdown of the review per specifications

Ingress Protection (Ip) Rating

Xiaomi Redmi Buds 4 Pro IP54

Bowers & Wilkins PI7 IP54

Ingress protection ratings refer to the rank of protection offered by an enclosure, against solids and liquids. The letters 'IP' are followed by two values The first value means protection against solids say dust, followed by the one that refers to resistance against liquids (water).

Having a value of IP54, the Xiaomi Redmi Buds 4 Pro's rating is read as, the first value 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 the second number of 4 means that they can withstand low pressure spray similar to that of a shower head when tilted at 180° for 10 minutes.

Compared to the Xiaomi Redmi Buds 4 Pro, 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

Weight

Xiaomi Redmi Buds 4 Pro 10g

Bowers & Wilkins PI7 50g

Xiaomi Redmi Buds 4 Pro have a weight of 10g . We consider a lower weight better because lighter devices are easier to transport.

Bowers & Wilkins PI7, at 50g are heavier than the Xiaomi Redmi Buds 4 Pro by of 40g

Has No Wires Or Cables

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

True wireless devices have no wires linking any part of the device together, Xiaomi Redmi Buds 4 Pro are true wireless for this case since they have no cables. This is an important distinction since wireless earbuds have wires connecting the two earbuds .

Bowers & Wilkins PI7 also is true wireless since it has no wires connecting the 2 earbuds together.

Sweat Resistance

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✗

Xiaomi Redmi Buds 4 Pro have sweat resistance

Is Dust Proof And Water-Resistant

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✗

The Xiaomi Redmi Buds 4 Pro are both dustproof and water-resistant.

Has Stereo Speakers

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

Xiaomi Redmi Buds 4 Pro have stereo speakers, what this means is that Xiaomi Redmi Buds 4 Pro's speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better listening experience.

Both Bowers & Wilkins PI7 and Xiaomi Redmi Buds 4 Pro have stereo speakers

Xiaomi Redmi Buds 4 Pro
See price on Amazon

Has Active Noise Cancellation (Noise Control)

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

ANC uses more advanced kind of tech to actively counter noise. How it works, it studies the sound pattern outside and inside the earbud and generates a mirror signal to cancel it out. In simple terms, it's like taking +1 (sound from your surrounding) and producing -1 (inverted noise) giving 0 which results in a reduced level of noise.

The Xiaomi Redmi Buds 4 Pro have ANC enabling you to listen at lower levels of volume, good for your ears since you don't have to crank up the earbuds volume to overcome background sounds.

Bowers & Wilkins PI7 too have ANC making both devices ideal for plane rides and morning travels. Each work with different noise cancellation settings, pick the noise cancellation type that you prefer for travel or that suites your chill time.

Has Passive Noise Reduction

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

Xiaomi Redmi Buds 4 Pro stay well in place, creating an acoustic seal that reduces your environment sounds and also prevents the device music from leaking out .

Both of these devices have passive noise reduction this means that they reduce ambient noise without using ANC to cancel it out.

Driver Unit Size

Xiaomi Redmi Buds 4 Pro 11mm

Bowers & Wilkins PI7 9.2mm

Xiaomi Redmi Buds 4 Pro driver unit is 11mm in diameter, the bigger the unit the more powerful, and can produce better bass. The driver unit is basically a mini speaker that makes sound in the device, the unit size determines the loudness of the earbuds.

Bowers & Wilkins PI7 driver unit is 9.2mm in diameter, which implies that they have a smaller driver unit than that of Xiaomi Redmi Buds 4 Pro by 1.8mm , a common assumption that driver units of a bigger size automatically produce better sound quality.

However, large drivers usually have difficulty producing high frequencies so yes, larger drivers can generate louder sound, but this does not indicate that they produce better quality sound.

Lowest Frequency

Xiaomi Redmi Buds 4 Pro 20Hz

Bowers & Wilkins PI7 10Hz

The Xiaomi Redmi Buds 4 Pro's lowest frequency is at 20Hz, low-frequency response inidcates how well an 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 means that Bowers & Wilkins PI7 can produce a juicier bass than the Xiaomi Redmi Buds 4 Pro

Highest Frequency

Xiaomi Redmi Buds 4 Pro 40000Hz

Bowers & Wilkins PI7 20000Hz

The Xiaomi Redmi Buds 4 Pro's highest frequency is at 40000Hz, high-frequency response indicates how well a particular audio device generates high audible frequencies and if it changes to the signal while at it.

Bowers & Wilkins PI7's highest frequency is at 20000Hz, this means that Xiaomi Redmi Buds 4 Pro can generate a clearer and crispier treble than the Bowers & Wilkins PI7

A Review By Comparison Of The Huawei Freebuds Pro 2 Vs. Xiaomi Redmi Buds 4 Pro

Battery Life

Xiaomi Redmi Buds 4 Pro 9hours

Bowers & Wilkins PI7 4.5hours

The Xiaomi Redmi Buds 4 Pro's battery life is 9 hours, 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 chanrgings.

Bowers & Wilkins PI7's battery life is less than that of Xiaomi Redmi Buds 4 Pro by 4.5 hours . Every time you recharge your earbuds, they get a little less playing time. The effect is barely noticeable at first, but over a few years, your wireless earbuds will have shorter listening time.

Battery Life Of Charging Case

Xiaomi Redmi Buds 4 Pro 29hours

Bowers & Wilkins PI7 18hours

This is given by the manufacturer, and Xiaomi Redmi Buds 4 Pro's case is said to have a charge of 29 hours. A charging case with a longer battery life enables you to recharge your earbuds on the go many times before recharging the case itself.

Bowers & Wilkins PI7's charging case has a battery life of 18 hours, less than that of Xiaomi Redmi Buds 4 Pro by 11 hours

Charge Time

Xiaomi Redmi Buds 4 Pro 1hours

Bowers & Wilkins PI7 3hours

It takes 1 hours to fully charge the Xiaomi Redmi Buds 4 Pro's battery. It is highly adivsable to fully charge the battery before using the earbuds when they have been in storage for extended periods.

Bowers & Wilkins PI7 takes 3 hours to fully charge the battery, more than that of Xiaomi Redmi Buds 4 Pro by 2 hours

Battery Power

Xiaomi Redmi Buds 4 Pro 53mAh

Bowers & Wilkins PI7 ✗

Xiaomi Redmi Buds 4 Pro's battery capacity is 53mAh, battery capacity, shows the amount of electrical energy that a battery can store.

Has Wireless Charging

Xiaomi Redmi Buds 4 Pro ✗

Bowers & Wilkins PI7 ✓

Bowers & Wilkins PI7, the device supports wireless charging. To charge the earbuds, you just put down on a compatible charging pad.

Has A Battery Level Indicator

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

The Xiaomi Redmi Buds 4 Pro have a battery level indicator, an indicator alerts you when the earbuds has a low battery. Its lights display the charging status of your earbuds and charging case.

Bowers & Wilkins PI7 too have a battery level indicator, charging indicators allow you to tell the charging state of your device, whether fully charged, or the battery is running low.

Xiaomi Redmi Buds 4 Pro
See price on Amazon

Has Usb Type-C

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

The Xiaomi Redmi Buds 4 Pro 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.

Bluetooth Version

Xiaomi Redmi Buds 4 Pro v5.3

Bowers & Wilkins PI7 v5

The Xiaomi Redmi Buds 4 Pro have Bluetooth version of 5.3, Bluetooth is a wireless technology standard that enables data movement 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 Xiaomi Redmi Buds 4 Pro . Newer versions provide faster data transfers.

Maximum Bluetooth Range

Xiaomi Redmi Buds 4 Pro 10meters

Bowers & Wilkins PI7 10meters

The Xiaomi Redmi Buds 4 Pro have a 10meters distance to connect via Bluetooth.

Bowers & Wilkins PI7 have a maximum range of 10meters, equal to that of the Xiaomi Redmi Buds 4 Pro

Has Aac

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

Xiaomi Redmi Buds 4 Pro support AAC, a codec that is used for Bluetooth audio. It supports 24-bit audio at 250kbps. Because 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 Xiaomi Redmi Buds 4 Pro will work well with your iPhone. 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.

Has Ldac

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✗

The Xiaomi Redmi Buds 4 Pro support LDAC, a codec developed by Sony which allows streaming high-resolution audio over Bluetooth connections at up to 990 kbps at 32 bit/96 kHz. It can reach a high bitrate of 990kbps, providing high-resolution audio.

Has Aptx Adaptive

Xiaomi Redmi Buds 4 Pro ✗

Bowers & Wilkins PI7 ✓

Bowers & Wilkins PI7 support APTX Adaptive, an audio codec for Bluetooth devices that are developed by Qualcomm. It has a variable bit rate (between 279kbps and 420kbps).

Has Aptx Hd

Xiaomi Redmi Buds 4 Pro ✗

Bowers & Wilkins PI7 ✓

The Bowers & Wilkins PI7 support APTX HD, an audio codec for Bluetooth devices that are developed by Qualcomm. It supports high-quality 24-bit audio (at a bit rate of 576kbps).

A Review By Comparison Of The Huawei Freebuds Pro 2 Vs. Xiaomi Redmi Buds 4 Pro

Number Of Microphones

Xiaomi Redmi Buds 4 Pro 6only

Bowers & Wilkins PI7 6only

Xiaomi Redmi Buds 4 Pro have 6 microphones.

The Bowers & Wilkins PI7 microphones are 6, equal to that of the Xiaomi Redmi Buds 4 Pro . More microphones record better sound quality and enable the earbuds to filter out background sounds.

Has A Noise-Canceling Microphone

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

Xiaomi Redmi Buds 4 Pro use a noise-canceling microphone, these microphones are designed to filter out noise from the earbuds' sound.

The Bowers & Wilkins PI7 too have a noise-canceling type of microphone. This is useful in noisy environments.

Xiaomi Redmi Buds 4 Pro
See price on Amazon

Has Ambient Sound Mode

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

The Xiaomi Redmi Buds 4 Pro support ambient sound mode, which uses microphones to pass through ambient noises so that they can still be heard even when 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 jog but still want to be able to hear traffic.

Has In/On-Ear Detection

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

Xiaomi Redmi Buds 4 Pro have in/on-ear detection, the sensors in the device can detect when removed from your ears .

Bowers & Wilkins PI7 support in/on-ear detection, automatically pauses your music, or audiobook when you remove earbuds from your ears improving your listening experience.

Has Find Earbuds Feature

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

When lost in a room, or can't be found in your bag, Xiaomi Redmi Buds 4 Pro support the find earbuds feature.

Bowers & Wilkins PI7 also have the find earbuds feature. You can use the earbuds app on your smartphone to play a sound from your earbuds to find them.

Supports Fast Charging

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

Xiaomi Redmi Buds 4 Pro support fast charging. Most often, technologies like Qualcomm’s Quick Charge, are used to lower the time it takes to fully charge the earbuds.

Bowers & Wilkins PI7 too support fast charging. It's very similar to regular charging, only that the battery fills up much faster. Say, with Quick Charge 3.0, the battery can be charged to 50% in thirty minutes.

Multipoint Count

Xiaomi Redmi Buds 4 Pro 2only

Bowers & Wilkins PI7 ✗

Xiaomi Redmi Buds 4 Pro support multipoint of 2 connections, the multipoint feature allows you to link to more than one Bluetooth device and switch between them. For example, you can seemlessly switch calls from one device to another without manually disconnect and reconnect.

Has A Mute Function

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

Xiaomi Redmi Buds 4 Pro have a mute function, they have the feature to mute/unmute a conversation directly from the device.

The Bowers & Wilkins PI7 also support the mute function. It means that you can turn off the device's microphone, but you can still hear the other party's voice.

Control Panel Placed On A Device

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

The Xiaomi Redmi Buds 4 Pro, so you can access the volume control, pause, play, mute, etc whichever functions are supported on the device.

The Bowers & Wilkins PI7 also have a control panel on them.

Has Voice Prompts

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

The Xiaomi Redmi Buds 4 Pro have voice prompts. Automatically receive information via audio messages, say if there is a problem with the connection.

Bowers & Wilkins PI7 too support voice prompts meaning the device will notify you when the battery is running low, and it's time to recharge the device.

Travel Bag Is Included

Xiaomi Redmi Buds 4 Pro ✓

Bowers & Wilkins PI7 ✓

The Xiaomi Redmi Buds 4 Pro come with their own special pouch. Carrying earphones openly, or placing them inside your pockets without a cover may easily put them at risk of getting damaged.

Bowers & Wilkins PI7 too have a case included, which is useful for safe transportation.

A Review By Comparison Of The Nothing Ear 2 Vs. Xiaomi Redmi Buds 4 Pro

Category	Features	Xiaomi Redmi Buds 4 Pro	Bowers & Wilkins PI7
DESIGN	ingress protection (ip) rating	IP54	IP54
	weight	10g	50g
	has no wires or cables	✓	✓
	sweat resistance	✓	✗
	is dust proof and water-resistant	✓	✗
	has stereo speakers	✓	✓
SOUND QUALITY	has active noise cancellation (noise control)	✓	✓
	has passive noise reduction	✓	✓
	driver unit size	11mm	9.2mm
	lowest frequency	20Hz	10Hz
	highest frequency	40000Hz	20000Hz
POWER	battery life	9hours	4.5hours
	battery life of charging case	29hours	18hours
	charge time	1hours	3hours
	battery power	53mAh	✗
	has wireless charging	✗	✓
	has a battery level indicator	✓	✓
CONNECTIVITY	has usb type-c	✓	✓
	bluetooth version	v5.3	v5
	maximum bluetooth range	10meters	10meters
	has aac	✓	✓
	has ldac	✓	✗
	has aptx adaptive	✗	✓
	has aptx hd	✗	✓
MICROPHONE	number of microphones	6only	6only
MICROPHONE	has a noise-canceling microphone	✓	✓
EXTRAS	has ambient sound mode	✓	✓
	has in/on-ear detection	✓	✓
	has find earbuds feature	✓	✓
	supports fast charging	✓	✓
	multipoint count	2only	✗
	has a mute function	✓	✓
	control panel placed on a device	✓	✓
	has voice prompts	✓	✓
	travel bag is included	✓	✓
		See price on Amazon	See price on Amazon

A Review By Comparison of the Xiaomi Redmi Buds 4 Pro Vs. Bowers & Wilkins Pi7

Reasons why you might like the Xiaomi Redmi Buds 4 Pro

Reasons why you might like the Bowers & Wilkins PI7

A summary of the review by comparison

A breakdown of the review per specifications

Design

Ingress Protection (Ip) Rating

Weight

Has No Wires Or Cables

Sweat Resistance

Is Dust Proof And Water-Resistant

Has Stereo Speakers

Sound Quality

Has Active Noise Cancellation (Noise Control)

Has Passive Noise Reduction

Driver Unit Size

Lowest Frequency

Highest Frequency

Power

Battery Life

Battery Life Of Charging Case

Charge Time

Battery Power

Has Wireless Charging

Has A Battery Level Indicator

Connectivity

Has Usb Type-C

Bluetooth Version

Maximum Bluetooth Range

Has Aac

Has Ldac

Has Aptx Adaptive

Has Aptx Hd

Microphone

Number Of Microphones

Has A Noise-Canceling Microphone

Extras

Has Ambient Sound Mode

Has In/On-Ear Detection

Has Find Earbuds Feature

Supports Fast Charging

Multipoint Count

Has A Mute Function

Control Panel Placed On A Device

Has Voice Prompts

Travel Bag Is Included

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