IP ratings refer to the level of protection offered by a casing, against solids and liquids. The letters 'IP' are followed by two values The first value of the IP rating represents protection against solids say dust, followed by the one that refers to protection against liquids (sweat).
Scoring 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. In comparison to the Boult Audio Z40, Bose SoundSport Free have a rating of IPX4 meaning that
we are not yet certain of their rating with solids (dust)
and that of liquids is that,
Bose SoundSport Free has a lower liquid rating than Boult Audio Z40
The Boult Audio Z40 have a weight of 40g . We prefer a lower weight better for the reason that lighter devices are easier to transport.
Bose SoundSport Free, at 18.2g
are lighter than the Boult Audio Z40 with a difference -21.8g
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 matter since they have no cables. This is a key difference since wireless earbuds have wires linking the 2 earbuds together. Bose SoundSport Free also is true wireless since it has no cables connecting the pair of earbuds .
Boult Audio Z40 have wingtips, these are reserved for earbuds for workouts and come as an optional add-on to each silicone ear tip for a more secure fit.
Bose SoundSport Free too have wingtips, by resting against the triangular fossa and form a secure fit to combat vigorous movement, they are best suited for sports and other physical activities. When used rightly, they secure the earbuds from falling off. Boult Audio Z40 have sweat resistance
Bose SoundSport Free's resistance to sweat makes both devices fit for use during 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, devices with stereo speakers deliver sound from independent channels on both left and right sides, this creates a richer sound and a better listening experience. Both Bose SoundSport Free and Boult Audio Z40 have stereo speakers
Boult Audio Z40 sit well in place, creating an acoustic covering that tones down background sounds and also prevents the device voice audio from leaking out at the same. Both Bose SoundSport Free, and Boult Audio Z40 have passive noise reduction this implies that they reduce ambient noise instead of actively using ANC to cancel it out.
The Boult Audio Z40 have a unit size of 10mm in diameter, the bigger the unit the more powerful, therefor producing better bass. The driver unit is basically a mini speaker that makes sound in the earbuds, its size corellates with the loudness of the earbuds. Bose SoundSport Free driver unit is 10mm in diameter,
making both Bose SoundSport Free, and Boult Audio Z40 similar in how loud their sound can get
, a common assumption 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 indicate that they deliver better quality sound. The Boult Audio Z40's lowest frequency is at 20Hz, low-frequency response measures if and how well an audio component produces low frequencies that can be heard, and if it alters the signal on its way through. Bose SoundSport Free's lowest frequency is at 20Hz, this means that
both devices can produce equal bass
Boult Audio Z40's highest frequency is at 20,000Hz, high-frequency response measures if and how well an audio device produces high recognizable frequencies and if it makes any changes to the signal on its way through.
Bose SoundSport Free's highest frequency is at 20,000Hz, this implies that
both devices 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 given by the manufacturer, and with more battery hours, you get to use it for longer and have to charge the device less often. Bose SoundSport Free's battery life is
less than that of Boult Audio Z40 by 5 hours
. Every time you recharge your earbuds, they get a little less listening time.
The effect is barely noticeable at first, but over a few years, your wireless earbuds will no longer play for long like they used to. 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 enables you to recharge your earbuds on the go several times before having to recharge the case itself.
Bose SoundSport Free's charging case has a battery life of 10 hours,
less than that of Boult Audio Z40 by 40 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 in storage for extended periods. Bose SoundSport Free takes 2 hours to fully charge the battery,
more than that of Boult Audio Z40 by 0.5 hours
Boult Audio Z40 have USB TYPE-C, a standard connector for transmitting both data and power through a single cable.
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. Bose SoundSport Free has a Bluetooth version of 4.1,
older than that of Boult Audio Z40
. Newer versions provide faster data transfers. The Boult Audio Z40 have a 10meters distance to connect via Bluetooth.
Bose SoundSport Free have a maximum range of 9.1meters,
less than that of Boult Audio Z40 by 0.9meters
Boult Audio Z40 support AAC, a codec 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.
Since its the highest quality codec that any Bluetooth-supporting Apple product supports, the Boult Audio Z40 will work fine with your MacBook. If you intend 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 Bose SoundSport Free microphones are 2,
equal to that of the Boult Audio Z40
. More microphones record better sound quality and enable the device to filter out noise. Boult Audio Z40 have in/on-ear detection, the sensors in the device can detect when they are removed from your ears .
Boult Audio Z40 support fast charging. Most often, technologies like Qualcomm’s Quick Charge, are used to reduce the amount of time it takes to charge the earbuds.
Also the Bose SoundSport Free too support fast charging. This kind is similar to regular charging, only that the battery is filling up much faster. For example, with Quick Charge 3.0, the battery can be charged to 50% in 30 minutes.
The Boult Audio Z40 have a mute function, they have the option to mute/unmute a conversation directly from the device. The Bose SoundSport Free also have this function. The mute function means that you unilaterally turn off the device's microphone, but you can still hear the other party talk.
With the Boult Audio Z40, so you can access the volume control, pause, play, mute, etc whichever features are supported on the device. Bose SoundSport Free also 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. With voice prompts, you receive information via audio messages, like if there is an issue with the connection. The Bose SoundSport Free too support voice prompts meaning the device will notify you if the battery is low, and you need to recharge them.
