Design
Ingress Protection (IP) rating
The first number of the IP rating refers to protection against dust, while the second number refers to protection against liquid. E.g. a first number of 6 denotes that it is completely dustproof, and a second number of 7 denotes that the device can withstand full immersion in water.
- Mivi DuoPods i6 ipx4
- Xiaomi Redmi Buds 4 Pro ip54
Water resistance
The level of water resistance that the device has.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro 10g
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Weight
We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro null
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Has no wires or cables
True wireless devices have no cables connecting any part of the device together. This is an important distinction as some wireless earbuds have cables connecting the two earbuds together.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Neckband
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Wingtips included
These earbuds come with wingtips that can be attached for a more secure fit. Wingtips come in handy for sports and other physical activities. When used correctly, they prevent the earbuds from falling off.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Has RGB lighting
RGB lighting allows you to choose between millions of colors and customize the look of your PC components.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Has stereo speakers
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro null
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Has UV light
The device kills germs, viruses and bacteria using an ultraviolet bulb.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Sound quality
Has active noise cancellation (ANC)
This type of device allows you to listen at lower volume levels, causing less ear fatigue as you don't have to crank up the volume to overcome background noise. Ideal for plane rides and morning commutes.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Driver unit size
The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.
- Mivi DuoPods i6 13
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- Xiaomi Redmi Buds 4 Pro 10mm
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Highest frequency
The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.
- Mivi DuoPods i6 20000
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- Xiaomi Redmi Buds 4 Pro 40000Hz
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Supports spatial audio
Spatial audio is a technology that creates an immersive, three-dimensional sound experience by simulating audio sources from various directions and distances. It enhances the listener's perception of soundscapes, providing a more realistic and engaging experience for music, movies, or games.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Has Dolby Atmos
Dolby Atmos is a surround sound technology that allows sounds to be interpreted as three-dimensional objects. By doing so, Dolby Atmos allows for immersive, 360-degree sound.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro null
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Impedance
Impedance is the device’s electrical resistance to the current being pushed through it. The lower the impedance, the easier it is to get higher volume and requires less power.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro 24 Ohms
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Sound pressure level
Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro null
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Power
Battery life
The device's battery life (when in use) as given by the manufacturer. With a longer battery life you have to charge the device less often.
- Mivi DuoPods i6 8.5
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- Xiaomi Redmi Buds 4 Pro 9h
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Battery life of charging case
The battery life of the charging case as given by the manufacturer. A charging case with a longer battery life allows you to recharge your headphones on the go multiple times before having to recharge the case itself.
- Mivi DuoPods i6 46.5
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- Xiaomi Redmi Buds 4 Pro 29h
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Battery life (ANC)
The battery life when using active noise cancellation (ANC), as given by the manufacturer.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro 1h
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Charge time
The time it takes to fully charge the battery.
- Mivi DuoPods i6 1.5
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- Xiaomi Redmi Buds 4 Pro 53mAh
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Battery power
Battery power, or battery capacity, represents the amount of electrical energy that a battery can store. More battery power can be an indication of longer battery life.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro null
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Has wireless charging
It supports a wireless charging standard such as Qi. To charge the device, you simply put it down on a compatible charging pad.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Has a solar power battery
A solar battery takes its energy from light, and stores it in a self-recharging battery which never needs to be changed.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Connectivity
Has fast pairing
The device connects via a Bluetooth quick pairing standard (such as Google Fast Pair) that uses Bluetooth Low Energy (BLE) and allows for a fast, hassle-free pairing process.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Has USB Type-C
The USB Type-C features reversible plug orientation and cable direction.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro 5.3
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Bluetooth version
Bluetooth is a wireless technology standard that allows data transfers between devices placed in close proximity, using short-wavelength, ultra-high frequency radio waves. Newer versions provide faster data transfers.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro null
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Has aptX
aptX is a codec used for transmitting audio wirelessly with Bluetooth. It is developed by Qualcomm, and supports 16-bit audio at a bit rate of 384kbps.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro 60ms
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Has aptX Lossless
aptX Lossless is an audio codec for Bluetooth devices that is developed by Qualcomm. It supports high quality 16-bit/44.1kHz audio (at a maximum bit rate of 1200kbps). This codec provides CD-quality audio without any loss of data.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro 10m
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Audio latency
Latency refers to the time it takes for the audio signal to be transmitted to your headphones/earbuds. Lower latency reduces audio lag, and is particularly important when playing games or watching videos.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro null
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Maximum Bluetooth range
The device can connect at a greater distance via Bluetooth or infrared to another device.
- Mivi DuoPods i6 10
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- Xiaomi Redmi Buds 4 Pro null
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Supports Bluetooth pairing using NFC
Device supports fast Bluetooth pairing using NFC so it can communicate with other devices over Bluetooth. You can fastly pair devices without entering a code by simply holding one device next to the device with which it is to be paired.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Features
Has ambient sound mode
Ambient sound mode uses microphones to pass through ambient noises so that they can still be heard. It’s useful when you want to listen to music but also be aware of what’s happening around you, for example when you’re jogging but still want to be able to hear traffic.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Has in/on-ear detection
Sensors can detect when they are removed from your ears so that the music is paused, saving battery life.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Has find earbuds feature
You can use the app to play a sound from your earbuds to help you locate them.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Can read notifications
It can read out any notifications that you receive while you're using the earbuds/headphones.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Control panel placed on a device
There is a control panel on the device body, so you can easily access the volume control or remote without having to interact with a cable or another device it's connected to.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro null
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Warranty period
When covered under the manufacturer’s warranty it is possible to get a replacement in the case of a malfunction. Note: This may vary by region.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro null
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Travel bag is included
The device comes with its own special case or pouch, which is useful for safe transportation.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro
Microphone
Number of microphones
More microphones result in better sound quality and enable the device to filter out background noise.
- Mivi DuoPods i6 null
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- Xiaomi Redmi Buds 4 Pro 6
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Has a noise-canceling microphone
These microphones are designed to filter out background noise from the desired sound. Especially useful in noisy environments.
- Mivi DuoPods i6
- Xiaomi Redmi Buds 4 Pro