Ingress protection ratings is the level of protection offered by a casing, against dust and water. The letters 'IP' are followed by two values The first value of the IP rating represents protection against solids such as dust, while the second refers to protection against liquids (sweat).
Having a value of IPX5, the Boult Audio Z40's rating is read as, the first number of X denotes that no data available to specify a protection rating, and of liquids that they can withstand medium pressure jet that's 6.3mm diameter, similar to garden hose from any angle for 3 minutes at a distance of 2.5 to 3 metres. Compared to the Boult Audio Z40, JBL Live Free 2 have a rating of IPX5 meaning that
we are not yet certain of their rating with solids (dust)
and that of liquids is that,
they both have the same rating against liquids
Boult Audio Z40 have a weight of 40g . We take in account a lower weight better because lighter devices are more comfortable to transport.
The JBL Live Free 2, at 9.8g
weigh less than the Boult Audio Z40 by -30.2g
For a device to be true wireless it should have no cables linking any part of the device together, Boult Audio Z40 are true wireless for this case since they don't have cables. This is a key distinction as some wireless earbuds have cables linking the 2 earbuds .
JBL Live Free 2 also is true wireless since it doesn't have wires connecting the 2 earbuds together. The Boult Audio Z40 come with wingtips, these are commonly used for workout earbuds and come as an optional add-on to the separate silicone ear tip for a more secure fit.
Boult Audio Z40 are resistant to sweat
JBL Live Free 2's resistance to sweat makes both devices ideal for use while doing sports such as long-distance running, marathons, training in workout bodysuits, etc
The Boult Audio Z40 are both dustproof and water-resistant. Boult Audio Z40 have stereo speakers, what this means is that Boult Audio Z40's speakers deliver sound from separate channels on both left and right sides, this creates a richer sound and a better listening experience. Both JBL Live Free 2 and Boult Audio Z40 have stereo speakers
Boult Audio Z40 sit well in place, this creates a sound seal that reduces your environment sounds while preventing the earbuds sound from leaking out .
Both of these devices have passive noise reduction this implies that they tone down ambient noise instead of actively using technology to cancel it out.
Boult Audio Z40 have a unit size of 10mm 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, the unit size corellates with the loudness of the earbuds. JBL Live Free 2 driver unit is 11mm in diameter,
making them have a larger driver unit than that of Boult Audio Z40 by 1mm
, 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 yeah, larger drivers are capable of generating louder sound, but this does not mean that they produce better quality sound. Boult Audio Z40's lowest frequency is at 20Hz, low-frequency response measures if and how well a particular audio component generates low frequencies that can be heard, and if it makes any changes to the signal on its way through. JBL Live Free 2's lowest frequency is at 20Hz, this means that
both devices can make sound with equal bass
The Boult Audio Z40's highest frequency is at 20,000Hz, high-frequency response shows how well a particular audio component generates high human frequencies and if it makes any adjustments to the signal on its way through.
JBL Live Free 2's highest frequency is at 20,000Hz, this means that
both devices can generate equal treble
The Boult Audio Z40's battery life is 10 hours, these last longer than 5 hours of listening which is considered average for a single charge. A device's battery life is commonly given by the manufacturer, and with more battery hours, you get to use it for longer and have to charge the device less often. JBL Live Free 2's battery life is
less than that of Boult Audio Z40 by 3 hours
. Every time you recharge your device, they get a little less playing time.
The effect is not noticeable at first, but over time, your wireless earbuds will have shorter listening time. This is given by the vendor, and Boult Audio Z40's case is said to have a full charge of 50 hours. A charging case with a longer battery life allows you to recharge your earbuds on the go multiple times before having to recharge the case itself.
JBL Live Free 2's charging case has a battery life of 28 hours,
less than that of Boult Audio Z40 by 22 hours
It takes 1.5 hours to fully charge the Boult Audio Z40's battery. It is recommended to charge fully the battery before using the earbuds for the first time. Boult Audio Z40 have USB TYPE-C, a standard connector for transmitting both data and power through a single cable.
JBL Live Free 2 too support USB TYPE-C. This USB-C plug comes along with most current electronics. The Boult Audio Z40 have Bluetooth version of 5.3, Bluetooth is a wireless technology standard that enables data movement between devices placed in range, using short-wavelength, ultra-high frequency radio waves.
JBL Live Free 2 has a Bluetooth version of 5.2,
older than that of Boult Audio Z40
. Newer versions provide faster data transfers. Boult Audio Z40 have a 10meters distance to connect via Bluetooth. JBL Live Free 2 have a maximum range of 10meters,
equal to that of the Boult Audio Z40
Boult Audio Z40 support AAC, a codec that is used for Bluetooth audio.
It supports 24-bit audio at 250kbps. Since it uses psychoacoustic modeling, it can provide better results than other codecs at a similar bit rate.
Being the highest quality codec that any Bluetooth-supporting Apple product supports, the Boult Audio Z40 will work fine with your iPhone.
If you intend on using these with Android , ensure that they also support aptX HD, LDAC, or LHDC as well. Boult Audio Z40 have 2 microphones. JBL Live Free 2 microphones are 6,
more than that of Boult Audio Z40 by 4
. More microphones record better sound quality and enable the device to filter out noise.
Boult Audio Z40 support in/on-ear detection, the sensors in the earbuds can detect when removed from your ears so that the music is paused. The Boult Audio Z40 support fast charging. Most often, technologies like MediaTek’s Pump Express, are used to lower the time it takes to fully charge a device.
Also the JBL Live Free 2 too support fast charging. It's very similar to regular charging, only that the battery is filling up much faster. Say, with Quick Charge 3.0, the battery can be charged to 50% in just 30 minutes.
The Boult Audio Z40 have a mute function, they support the feature to mute/unmute a conversation directly from the earbuds. The JBL Live Free 2 also have the mute function. The mute function means that you can turn off the earbuds' microphone, but you can still hear the other party's voice.
With the Boult Audio Z40, so you can access the volume control, pause, play, mute, etc whichever functions are supported on the device. The JBL Live Free 2 too have a control panel on them. Boult Audio Z40 have a warranty period of 1 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.
The Boult Audio Z40 have voice prompts. Automatically receive information via audio messages, say if there is a problem with the connection. The JBL Live Free 2 also support voice prompts .i.e the device will notify you if the battery is low, and you need to recharge the earbuds.
