A breakdown of the review per specifications

Ingress Protection (Ip) Rating

Audio Technica ATH TWX9 IPX4

Xiaomi Redmi Buds 4 Pro IP54

Ingress protection ratings refer to the rating of protection given by a casing, against solids and liquids. The letters 'IP' are followed by two values The first value of the IP rating represents protection against solids say dust, while the second refers to resistance against liquids (water).

Having a value of IP54, the Xiaomi Redmi Buds 4 Pro'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 the second value of 4 means 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 Xiaomi Redmi Buds 4 Pro, Audio Technica ATH TWX9 have a rating of IPX4 meaning that no data available to specify a protection rating and that of liquids is that, they both have the same rating against liquids

Weight

Audio Technica ATH TWX9 10.8g

Xiaomi Redmi Buds 4 Pro 10g

The Xiaomi Redmi Buds 4 Pro have a weight of 10g . We prefer a lower weight better for the reason that lighter devices are easier to carry.

The Audio Technica ATH TWX9, at 10.8g weigh more than the Xiaomi Redmi Buds 4 Pro with a difference of 0.8g

Has No Wires Or Cables

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

For a device to be true wireless it must have no cables linking any part of the device together, Xiaomi Redmi Buds 4 Pro are true wireless for this matter since they have no cables. This is a major difference since wireless earbuds have cables connecting the 2 earbuds .

Audio Technica ATH TWX9 also is true wireless since it has no wires connecting the pair of earbuds together.

Sweat Resistance

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

Xiaomi Redmi Buds 4 Pro have sweat resistance

Audio Technica ATH TWX9's resistance to sweat makes both devices ideal for use during long-distance running, marathons, training in workout bodysuits, etc

Is Dust Proof And Water-Resistant

Audio Technica ATH TWX9 ✗

Xiaomi Redmi Buds 4 Pro ✓

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

Has Stereo Speakers

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

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

The Audio Technica ATH TWX9 also have stereo speakers

Audio Technica ATH TWX9
See price on Amazon

Has Active Noise Cancellation (Noise Control)

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

Active noise cancellation makes use of advanced technology to reduce unwanted ambient sounds. ANC works when, it detects and analyzes the sound pattern of incoming noise and after generates a mirror signal to cancel it out. Simply put, it's like taking +1 (noise) and adding -1 (inverted noise) to make zero therefore "diluting" the noise.

The Xiaomi Redmi Buds 4 Pro have Active Noise Cancellation enabling you to listen at lower volume levels, good for your ears as you don't need to crank up the earbuds volume to outcompete background noise.

The Audio Technica ATH TWX9 too have Active Noise Cancellation which makes both devices ideal for plane rides and morning commutes. Each operate with different noise cancellation settings, pick the mode that you prefer for commute or that suites your chill time.

Has Passive Noise Reduction

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

Xiaomi Redmi Buds 4 Pro stay tightly in place, this creates an acoustic covering that reduces background sounds while preventing the earbuds voice audio from leaking out .

Both of these devices have passive noise reduction this implies that both reduce ambient noise instead of actively using ANC to cancel it out.

Driver Unit Size

Audio Technica ATH TWX9 5.8mm

Xiaomi Redmi Buds 4 Pro 11mm

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

Audio Technica ATH TWX9 driver unit is 5.8mm in diameter, which implies that they have a smaller driver unit than that of Xiaomi Redmi Buds 4 Pro by 5.2mm , a common assumption 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 indicate that they produce better quality sound.

Lowest Frequency

Audio Technica ATH TWX9 20Hz

Xiaomi Redmi Buds 4 Pro 20Hz

The Xiaomi Redmi Buds 4 Pro's lowest frequency is at 20Hz, low-frequency response inidcates how well an audio component generates low recognizable frequencies and if it makes any changes to the signal on its way through.

Audio Technica ATH TWX9's lowest frequency is at 20Hz, this implies that both devices produce equal bass

Highest Frequency

Audio Technica ATH TWX9 40000Hz

Xiaomi Redmi Buds 4 Pro 40000Hz

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

Audio Technica ATH TWX9's highest frequency is at 40000Hz, this means that both devices can generate equal treble

Sound Pressure Level

Audio Technica ATH TWX9 102dB/mW

Xiaomi Redmi Buds 4 Pro ✗

The sound pressure level, is the pressure level of sound, in decibels, dB, Audio Technica ATH TWX9's measurement is 102dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.

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

Battery Life

Audio Technica ATH TWX9 6hours

Xiaomi Redmi Buds 4 Pro 9hours

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 have to charge the device less often.

Audio Technica ATH TWX9's battery life is less than that of Xiaomi Redmi Buds 4 Pro by 3 hours . Every time you recharge your earbuds, they get a little less listening time. The effect is barely noticeable at first, but over time, your wireless earbuds will have shorter listening time.

Battery Life Of Charging Case

Audio Technica ATH TWX9 18.5hours

Xiaomi Redmi Buds 4 Pro 29hours

This is given by the vendor, and Xiaomi Redmi Buds 4 Pro's case is said to have a full charge of 29 hours. A charging case with more battery hours allows you to recharge your earbuds on the go several times before recharging the case itself.

Audio Technica ATH TWX9's charging case has a battery life of 18.5 hours, less than that of Xiaomi Redmi Buds 4 Pro by 10.5 hours

Charge Time

Audio Technica ATH TWX9 2.5hours

Xiaomi Redmi Buds 4 Pro 1hours

It requires 1 hours to fully charge the Xiaomi Redmi Buds 4 Pro's battery. It is recommended to charge fully the battery before using the earbuds for the first time.

Audio Technica ATH TWX9 takes 2.5 hours to fully charge the battery, more than that of Xiaomi Redmi Buds 4 Pro by 1.5 hours

Battery Power

Audio Technica ATH TWX9 ✗

Xiaomi Redmi Buds 4 Pro 53mAh

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

Has A Battery Level Indicator

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

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

Audio Technica ATH TWX9 too have a battery level indicator, these enable you tell the charging state of your earbuds, whether fully charged, or the battery is running low.

Audio Technica ATH TWX9
See price on Amazon

Has Usb Type-C

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

Xiaomi Redmi Buds 4 Pro have USB TYPE-C, an industry-standard connector for transmitting both data and power through a single cable.

Audio Technica ATH TWX9 too use USB TYPE-C. This USB-C plug is part and parcel of most current electronics.

Bluetooth Version

Audio Technica ATH TWX9 v5.2

Xiaomi Redmi Buds 4 Pro v5.3

The Xiaomi Redmi Buds 4 Pro have Bluetooth version of 5.3, Bluetooth is a wireless technology standard that allows data movement between devices placed in close proximity, using short-wavelength, ultra-high frequency radio waves.

Audio Technica ATH TWX9 has a Bluetooth version of 5.2, older than that of Xiaomi Redmi Buds 4 Pro . Newer versions provide faster data transfers.

Maximum Bluetooth Range

Audio Technica ATH TWX9 10meters

Xiaomi Redmi Buds 4 Pro 10meters

Xiaomi Redmi Buds 4 Pro have a 10meters distance connecting via Bluetooth.

Audio Technica ATH TWX9 have a maximum range of 10meters, equal to that of the Xiaomi Redmi Buds 4 Pro

Has Aac

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

Xiaomi Redmi Buds 4 Pro support AAC, a codec that is used for Bluetooth audio. It supports 24-bit audio at 250kbps. Since it uses psychoacoustic modeling, it provides better results than other codecs at a similar bit rate.

Being 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 Audio Technica ATH TWX9 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

Audio Technica ATH TWX9 ✗

Xiaomi Redmi Buds 4 Pro ✓

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, which provides high-resolution audio.

Has Aptx Adaptive

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✗

Audio Technica ATH TWX9 support APTX Adaptive, an audio codec for Bluetooth devices that are developed by Qualcomm. It has a variable bit rate (between 279kbps and 420kbps).

A Review By Comparison Of The Samsung Galaxy Buds Live Vs. Xiaomi Redmi Buds 4 Pro

Number Of Microphones

Audio Technica ATH TWX9 4only

Xiaomi Redmi Buds 4 Pro 6only

Xiaomi Redmi Buds 4 Pro have 6 microphones.

Audio Technica ATH TWX9 microphones are 4, less than that of Xiaomi Redmi Buds 4 Pro by 2 . More microphones result in better sound quality and help the device to filter out background sounds.

Has A Noise-Canceling Microphone

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

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

The Audio Technica ATH TWX9 too use a noise-canceling type of microphone. Especially useful in noisy environments.

Mic Sensitivity

Audio Technica ATH TWX9 -38dBV/Pa

Xiaomi Redmi Buds 4 Pro ✗

The Audio Technica ATH TWX9 microphone sensitivity is measured at -38dBV/Pa. The amount of the analog or digital output signal from the microphone with its input stimulus is a calculation of its sensitivity. It's the 'loudness' of the sound that the microphone can pick up.

Highest Mic Frequency

Audio Technica ATH TWX9 16000Hz

Xiaomi Redmi Buds 4 Pro ✗

Audio Technica ATH TWX9's highest mic frequency is 16000Hz, high frequencies are better for recording treble. The highest mic frequency of a microphone is known as its upper limiting frequency.

Lowest Mic Frequency

Audio Technica ATH TWX9 100Hz

Xiaomi Redmi Buds 4 Pro ✗

The Audio Technica ATH TWX9's lowest mic frequency is 100Hz, low frequencies are best for picking up bass. The lowest mic frequency of a microphone is defined as its lower limiting frequency.

Audio Technica ATH TWX9
See price on Amazon

Has Ambient Sound Mode

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

The Xiaomi Redmi Buds 4 Pro support ambient sound mode, which uses microphones to channel ambient noises so that they can still be heard even while wearing the earbuds

The Audio Technica ATH TWX9 support ambient sound mode as well, it’s useful when you want to listen to music while being aware of what’s happening around you, say you’re having a run but would still want to be able to hear traffic.

Has In/On-Ear Detection

Audio Technica ATH TWX9 ✗

Xiaomi Redmi Buds 4 Pro ✓

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

Has Find Earbuds Feature

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

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

Audio Technica ATH TWX9 also have the find earbuds feature. You can use the earbuds app on your smartphone to play an alarm from your device to locate them.

Supports Fast Charging

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

Xiaomi Redmi Buds 4 Pro support fast charging. Commonly, technologies like MediaTek’s Pump Express, are used to lower the time it takes to charge the earbuds.

The Audio Technica ATH TWX9 too support fast charging. This kind is similar to regular charging, just that the battery fills up much faster. Say, with Quick Charge 3.0, the battery can be charged to 50% in 30 minutes.

Multipoint Count

Audio Technica ATH TWX9 2only

Xiaomi Redmi Buds 4 Pro 2only

Xiaomi Redmi Buds 4 Pro have a multipoint of 2 connections, this feature allows you to link 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.

The Audio Technica ATH TWX9 have a multipoint count of 2, equal to that of the Xiaomi Redmi Buds 4 Pro . Bluetooth multipoint comes in handy when you can be on one call and not miss notifications coming from another connected device.

Has A Mute Function

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

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

The Audio Technica ATH TWX9 also support this function. The mute function means that you unilaterally turn off the device's microphone, but you can still hear the other party's voice.

Control Panel Placed On A Device

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

With 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 Audio Technica ATH TWX9 also have a control panel on them.

Has Voice Prompts

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

Xiaomi Redmi Buds 4 Pro have voice prompts. With voice prompts, you receive information through audio messages, like if there is a problem with the connection.

The Audio Technica ATH TWX9 too have voice prompts meaning the device notifies you if the battery is low, and you need to recharge the earbuds.

Travel Bag Is Included

Audio Technica ATH TWX9 ✓

Xiaomi Redmi Buds 4 Pro ✓

The Xiaomi Redmi Buds 4 Pro come with their own special pouch. Carrying earbuds without a case, or putting them inside your pockets without a casing can easily damage them.

Audio Technica ATH TWX9 too have a travel bag included, which offers safe transportation.

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

A Review By Comparison of the Xiaomi Redmi Buds 4 Pro Vs. Audio Technica Ath Twx9

Reasons why you might like the Audio Technica ATH TWX9

Reasons why you might like the Xiaomi Redmi Buds 4 Pro

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

Sound Pressure Level

Power

Battery Life

Battery Life Of Charging Case

Charge Time

Battery Power

Has A Battery Level Indicator

Connectivity

Has Usb Type-C

Bluetooth Version

Maximum Bluetooth Range

Has Aac

Has Ldac

Has Aptx Adaptive

Microphone

Number Of Microphones

Has A Noise-Canceling Microphone

Mic Sensitivity

Highest Mic Frequency

Lowest Mic Frequency

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

Related Reviews