A breakdown of the review per specifications

Ingress Protection (Ip) Rating

Xiaomi Redmi Buds 4 Pro IP54

Sennheiser CX 500BT IPX4

Ingress protection ratings is the rating of protection given by an enclosure, against solids and liquids. The letters 'IP' are followed by two values The first value means protection against solids such as dust, while the second refers to protection against liquids (sweat).

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 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 Xiaomi Redmi Buds 4 Pro, Sennheiser CX 500BT 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

Xiaomi Redmi Buds 4 Pro 10g

Sennheiser CX 500BT 12g

The Xiaomi Redmi Buds 4 Pro have a weight of 10g . We take in account a lower weight better for the reason that lighter devices are easier to move with.

The Sennheiser CX 500BT, at 12g are heavier than the Xiaomi Redmi Buds 4 Pro with a difference of 2g

Has No Wires Or Cables

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

For a device to be true wireless it must 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 wires. This is a key difference since wireless earbuds have wires connecting the two earbuds .

Sennheiser CX 500BT also is true wireless because it has no cables linking the pair of earbuds .

Sweat Resistance

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

Xiaomi Redmi Buds 4 Pro are resistant to sweat

Sennheiser CX 500BT's resistance to sweat makes both devices good for use during long-distance running, marathons, cardio sweat workouts , etc

Is Dust Proof And Water-Resistant

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✗

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

Has Stereo Speakers

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

Xiaomi Redmi Buds 4 Pro have stereo speakers, devices with stereo speakers deliver sound from separate channels on both left and right sides, this creates a richer sound and a better listening experience.

The Sennheiser CX 500BT also have stereo speakers

Xiaomi Redmi Buds 4 Pro
See price on Amazon

Has Active Noise Cancellation (Noise Control)

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

ANC makes use of advanced technology to actively cancel noise. How it works, it detects and analyzes the sound pattern of incoming noise and after generates a mirror signal to counter it. Simply put, it's like taking +1 (noise) and adding -1 (inverted noise) to make 0 resulting in a reduced level of noise.

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

The Sennheiser CX 500BT too have Active Noise Cancellation making both devices ideal for flights and morning commutes. Each operate with different noise cancellation types, pick the noise cancellation type that suits your travel or that enhances your relaxation time.

Has Passive Noise Reduction

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

The Xiaomi Redmi Buds 4 Pro stay well in place, this creates an acoustic covering that tones down background noise and also prevents the device sound from leaking out .

Both of these devices have passive noise reduction which means that they tone down ambient noise instead of actively using technology to cancel it out.

Driver Unit Size

Xiaomi Redmi Buds 4 Pro 11mm

Sennheiser CX 500BT ✗

The 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. A driver unit is the component that produces sound in the device, its size corellates with the sound produced by the device.

Lowest Frequency

Xiaomi Redmi Buds 4 Pro 20Hz

Sennheiser CX 500BT 5Hz

The Xiaomi Redmi Buds 4 Pro's lowest frequency is at 20Hz, low-frequency response measures if and how well an audio component produces low recognizable frequencies and if it makes any changes to the signal while at it.

Sennheiser CX 500BT's lowest frequency is at 5Hz, this implies that Sennheiser CX 500BT can produce a juicier bass than the Xiaomi Redmi Buds 4 Pro

Highest Frequency

Xiaomi Redmi Buds 4 Pro 40000Hz

Sennheiser CX 500BT 21000Hz

Xiaomi Redmi Buds 4 Pro's highest frequency is at 40000Hz, high-frequency response tells how well an audio component makes high recognizable frequencies and if it changes to the signal on its way through.

Sennheiser CX 500BT's highest frequency is at 21000Hz, this implies that Xiaomi Redmi Buds 4 Pro can generate a clearer and crispier treble than the Sennheiser CX 500BT

Sound Pressure Level

Xiaomi Redmi Buds 4 Pro ✗

Sennheiser CX 500BT 94dB/mW

SPL, is the level of pressure of sound, measured in decibels, dB, Sennheiser CX 500BT's measurement is 94dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.

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Battery Life

Xiaomi Redmi Buds 4 Pro 9hours

Sennheiser CX 500BT 8hours

The Xiaomi Redmi Buds 4 Pro's battery life is 9 hours, a device's battery life is given by the manufacturer, and with more battery hours, you get to use it for longer and requires fewer chanrgings.

Sennheiser CX 500BT's battery life is less than that of Xiaomi Redmi Buds 4 Pro by 1 hours . Every time you recharge your earbuds, they get a little less playing time. The effect is not noticeable at first, but over a few years, your wireless earbuds will no longer play for long like they used to.

Battery Life Of Charging Case

Xiaomi Redmi Buds 4 Pro 29hours

Sennheiser CX 500BT 16hours

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

Sennheiser CX 500BT's charging case has a battery life of 16 hours, less than that of Xiaomi Redmi Buds 4 Pro by 13 hours

Charge Time

Xiaomi Redmi Buds 4 Pro 1hours

Sennheiser CX 500BT ✗

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

Battery Power

Xiaomi Redmi Buds 4 Pro 53mAh

Sennheiser CX 500BT ✗

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

Has A Battery Level Indicator

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

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

Sennheiser CX 500BT too have a battery level indicator, these allow you to tell the charging state of your device, whether fully charged, or having a low battery.

Xiaomi Redmi Buds 4 Pro
See price on Amazon

Has Usb Type-C

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

Xiaomi Redmi Buds 4 Pro use USB TYPE-C, a standard connector for transmitting both data and power in a single cable.

Sennheiser CX 500BT 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

Sennheiser CX 500BT v5.2

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.

Sennheiser CX 500BT 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

Xiaomi Redmi Buds 4 Pro 10meters

Sennheiser CX 500BT 10meters

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

Sennheiser CX 500BT have a maximum range of 10meters, equal to that of the Xiaomi Redmi Buds 4 Pro

Has Aac

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

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 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 are planning 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 Sennheiser CX 500BT 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 ✓

Sennheiser CX 500BT ✗

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 is capable of a very high bitrate of 990kbps, which provides high-resolution audio.

Has Aptx Adaptive

Xiaomi Redmi Buds 4 Pro ✗

Sennheiser CX 500BT ✓

Sennheiser CX 500BT support APTX Adaptive, an audio codec for Bluetooth devices that are developed by Qualcomm. It has a variable bit rate (between 279kbps and 420kbps).

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Number Of Microphones

Xiaomi Redmi Buds 4 Pro 6only

Sennheiser CX 500BT 4only

The Xiaomi Redmi Buds 4 Pro have 6 microphones.

The Sennheiser CX 500BT microphones are 4, less than that of Xiaomi Redmi Buds 4 Pro by 2 . More microphones result in better sound quality and enable the device to filter out noise.

Has A Noise-Canceling Microphone

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

Xiaomi Redmi Buds 4 Pro use a noise-canceling microphone, these microphones are intended to filter out background sounds from the desired sound.

The Sennheiser CX 500BT too have a noise-canceling microphone. Especially useful in noisy areas.

Highest Mic Frequency

Xiaomi Redmi Buds 4 Pro ✗

Sennheiser CX 500BT 10000Hz

The Sennheiser CX 500BT's highest mic frequency is 10000Hz, high frequencies are better for picking up treble. The highest mic frequency of a microphone is defined as its upper limiting frequency.

Lowest Mic Frequency

Xiaomi Redmi Buds 4 Pro ✗

Sennheiser CX 500BT 100Hz

The Sennheiser CX 500BT'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.

Xiaomi Redmi Buds 4 Pro
See price on Amazon

Has Ambient Sound Mode

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

The Xiaomi Redmi Buds 4 Pro support ambient sound mode, which uses microphones to pass through ambient noises to still be heard even when wearing them

The Sennheiser CX 500BT support ambient sound mode as well, helpful when you want to listen to music but also be aware of your surrounding, for example when you’re having a run but still want to hear traffic.

Has In/On-Ear Detection

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

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

Sennheiser CX 500BT too support in/on-ear detection, automatically pauses your music, or audiobook when you remove earbuds from your ears saving battery life.

Has Find Earbuds Feature

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

When misplaced in a room, or can't easily find them in your bag, Xiaomi Redmi Buds 4 Pro have a find earbuds feature.

The Sennheiser CX 500BT too have the find earbuds feature. You can use the earbuds app on your phone to play an alarm from your earbuds to help you find them.

Supports Fast Charging

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

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

The Sennheiser CX 500BT support fast charging. This kind is similar to regular charging, just 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.

Multipoint Count

Xiaomi Redmi Buds 4 Pro 2only

Sennheiser CX 500BT ✗

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

Has A Mute Function

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

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

The Sennheiser CX 500BT also support the mute function. The mute function means that you are in position turn off the earbuds' microphone, but you can still hear the other party's voice.

Control Panel Placed On A Device

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

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

Sennheiser CX 500BT also have a control panel on them.

Warranty Period

Xiaomi Redmi Buds 4 Pro ✗

Sennheiser CX 500BT 2Years

The Sennheiser CX 500BT 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.

Has Voice Prompts

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

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

The Sennheiser CX 500BT also have voice prompts meaning the earbuds notifies you when the battery is running low, and you need to recharge them.

Travel Bag Is Included

Xiaomi Redmi Buds 4 Pro ✓

Sennheiser CX 500BT ✓

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

Sennheiser CX 500BT too have a travel bag included, which offers safe transportation.

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Reasons why you might like the Xiaomi Redmi Buds 4 Pro

Reasons why you might like the Sennheiser CX 500BT

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

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

Warranty Period

Has Voice Prompts

Travel Bag Is Included

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