Ingress protection ratings refer to the rating of protection given by a casing, against solids and water. In the format of IPXX, 'X' represents a number The first value of the IP rating represents protection against solids say 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 the second number of 5 means 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. In comparison 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 consider a lower weight better for the reason that lighter devices are easier to carry.
JBL Live Free 2, at 9.8g
are lighter than the Boult Audio Z40 by -30.2g
For a device to be true wireless it should have no cables connecting any part of the device together, Boult Audio Z40 are true wireless for this case since they have no cables. This is a key difference as some wireless earbuds have cables linking the 2 earbuds together. JBL Live Free 2 also is true wireless since it doesn't have wires linking the two earbuds .
Boult Audio Z40 have wingtips, these are reserved for earbuds for workouts and come as an optional add-on to the separate silicone ear tip for a more secure fit.
Boult Audio Z40 have sweat resistance
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 independent channels on both left and right sides, creating a richer sound and a better listening experience. The JBL Live Free 2 also have stereo speakers
The Boult Audio Z40 sit well in place, creating an acoustic seal that reduces your environment noise and also prevents the device sound from leaking out .
Both of these devices have passive noise reduction which means that both reduce ambient noise instead of actively using ANC to cancel it out.
Boult Audio Z40 have a unit size of 10mm in diameter, bigger drivers are more powerful, therefor producing better bass. The driver unit is basically a mini speaker that makes sound in the device, the unit size determines the loudness of the device. 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
, many people have a misconception that driver units of a bigger size automatically produce better sound quality.
However, large drivers usually have difficulty producing high frequencies so it's true that, larger drivers can generate louder sound, but this does not imply that they deliver better quality sound. Boult Audio Z40's lowest frequency is at 20Hz, low-frequency response inidcates how well an audio device generates low frequencies that can be heard, and if it alters the signal on its way through. JBL Live Free 2's lowest frequency is at 20Hz, this means that
both devices make sound with equal bass
Boult Audio Z40's highest frequency is at 20,000Hz, high-frequency response shows how well a particular audio device produces high audible frequencies and if it makes any changes to the signal while at it.
JBL Live Free 2's highest frequency is at 20,000Hz, this implies that
both devices can produce equal treble
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 usually given by the manufacturer, and with longer battery life, 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
. Each time you recharge your earbuds, they get a little less playing time.
The effect is barely noticeable at first, but over a few years, your wireless earbuds will have shorter listening time. This is given by the vendor, and the Boult Audio Z40's case has a charge of 50 hours. A charging case with more battery hours allows you to recharge your earbuds on the go many times before recharging 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 highly adivsable to charge fully the battery before using the earbuds when they have been unused for long periods. Boult Audio Z40 support USB TYPE-C, an industry-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 transfers between devices placed in close proximity, 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 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 Boult Audio Z40 will work fine 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 Boult Audio Z40 have 2 microphones. The JBL Live Free 2 microphones are 6,
more than that of Boult Audio Z40 by 4
. More microphones result in better sound quality and help the earbuds to filter out background sounds.
Boult Audio Z40 have in/on-ear detection, the sensors in the device can detect when they are removed from your ears .
The Boult Audio Z40 support fast charging. Commonly, technologies like Qualcomm’s Quick Charge, are used to reduce the amount of time it takes to charge a device. JBL Live Free 2 support fast charging.
It's very similar to regular charging, just that the battery fills up much faster. Say, with Quick Charge 3.0, the battery is charged to 50% in thirty minutes. The Boult Audio Z40 have a mute function, they have the option to mute/unmute a conversation directly from the device.
The JBL Live Free 2 also have this function. The mute function means that you unilaterally turn off the earbuds' microphone, but you can still hear the other party talk. The Boult Audio Z40, so you can easily 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 following instruction manuals. Boult Audio Z40 have voice prompts.
With voice prompts, you receive information via audio messages, like if there is an issue with the connection. JBL Live Free 2 too have voice prompts .i.e the device notifies you when the battery is running low, and you need to recharge the earbuds.
