Design
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.
- EPOS GTW 270 Hybrid null
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- JBL E25 BT 16.5g
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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.
- EPOS GTW 270 Hybrid
- JBL E25 BT
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.
- EPOS GTW 270 Hybrid
- JBL E25 BT
Sweat resistance
Resistance to sweat makes it ideal for use while doing sports.
- EPOS GTW 270 Hybrid
- JBL E25 BT
Is dustproof and water-resistant
The device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water.
- EPOS GTW 270 Hybrid
- JBL E25 BT
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.
- EPOS GTW 270 Hybrid
- JBL E25 BT
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.
- EPOS GTW 270 Hybrid
- JBL E25 BT
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.
- EPOS GTW 270 Hybrid null
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- JBL E25 BT 8mm
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Sound pressure level
Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
- EPOS GTW 270 Hybrid 100dB/mW
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- JBL E25 BT 102dB/mW
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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.
- EPOS GTW 270 Hybrid null
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- JBL E25 BT 16 Ohms
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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.
- EPOS GTW 270 Hybrid 5h
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- JBL E25 BT 8h
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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.
- EPOS GTW 270 Hybrid 15h
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- JBL E25 BT null
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Charge time
The time it takes to fully charge the battery.
- EPOS GTW 270 Hybrid 1.5h
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- JBL E25 BT 2h
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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.
- EPOS GTW 270 Hybrid
- JBL E25 BT
Connectivity
Has USB Type-C
The USB Type-C features reversible plug orientation and cable direction.
- EPOS GTW 270 Hybrid
- JBL E25 BT
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.
- EPOS GTW 270 Hybrid 5.1
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- JBL E25 BT 4.1
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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.
- EPOS GTW 270 Hybrid
- JBL E25 BT
Features
Supports fast charging
Fast charging technologies, like Qualcomm’s Quick Charge or MediaTek’s Pump Express, are used to reduce the time it takes to charge a device. For example, with Quick Charge 3.0, the battery can be charged to 50% in just 30 minutes.
- EPOS GTW 270 Hybrid
- JBL E25 BT
Has a mute function
The device has an option to mute/unmute a conversation directly from the device.
- EPOS GTW 270 Hybrid
- JBL E25 BT
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.
- EPOS GTW 270 Hybrid
- JBL E25 BT
Has an in-line control panel
There is a control panel on the cable, so you can easily operate the device without having to interact with it.
- EPOS GTW 270 Hybrid
- JBL E25 BT
Microphone
Number of microphones
More microphones result in better sound quality and enable the device to filter out background noise.
- EPOS GTW 270 Hybrid 4
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- JBL E25 BT 1
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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.
- EPOS GTW 270 Hybrid
- JBL E25 BT
Mic sensitivity
It's the 'loudness' of the sound that the microphone can pick up.
- EPOS GTW 270 Hybrid -20dBV/Pa
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- JBL E25 BT null
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Highest mic frequency
The highest frequency that the mic can pick up. Better for recording treble.
- EPOS GTW 270 Hybrid 7500Hz
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- JBL E25 BT null
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Lowest mic frequency
The lowest frequency that the mic can pick up. Better for recording bass.
- EPOS GTW 270 Hybrid 100Hz
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- JBL E25 BT null
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