OnePlus Bullets Wi-fi Z vs Oppo Enco M31


The Bullets Wi-fi Z are OnePlus’ pair of neckband-style Bluetooth wi-fi earbuds that had been introduced along the OnePlus eight sequence. They’re a less expensive model of the corporate’s Bullets Wi-fi 2, with decreased subject material high quality and motive force rely however in change presented a significantly stepped forward battery lifestyles. After I reviewed them a few months in the past, I known as them the most productive product of their value class.

OnePlus Bullets Wireless Z vs Oppo Enco M31

Then final month I reviewed the Oppo Enco M31, and issues modified a bit of. The M31 have the similar sort element because the Bullets Wi-fi Z however did not moderately promise the similar battery lifestyles. What they presented as a substitute was once a completely stellar audio enjoy, which for the cost was once actually unprecedented from Bluetooth headsets.

So with those two headsets being kind of in a similar way priced, the query was once which one must you opt for. Are the Bullets Wi-fi Z nonetheless the most productive at school or does the audio high quality of the Enco M31 let them push forward? Let’s in finding out.


As discussed ahead of, each the Bullets Wi-fi Z and the Enco M31 have the similar crucial form-factor. Each function a magnetic clasp that holds the 2 audio system collectively when putting through your neck and likewise switches them off. The Oppo are the lighter of the 2 through 6g, which is noticeable.

OnePlus Bullets Wireless Z vs Oppo Enco M31

The Bullets Wi-fi Z have a extra considerable design. The whole thing about them feels chunkier, with thicker stalks, stiffer cables, and bigger speaker devices. The Enco M31 have a extra dainty really feel, compared, with thinner, hollower feeling stalks and reedier cables. The speaker devices are tiny in comparison to the Bullets Wi-fi Z.

The results of that is that the Bullets Wi-fi Z really feel extra top rate of the 2. Whilst the Enco M31 are a ways from feeling reasonable or poorly-built, they do not really feel as polished and well-put-together because the Bullets Wi-fi Z. A lot of the Bullets Wi-fi Z frame comes from the costlier Bullets Wi-fi 2 so they’ve a large number of the top rate have compatibility and end that you would be expecting from a costlier pair of headphones.

Each pairs of earphones declare ingress coverage for water. Whilst OnePlus provides an IP55 ranking, Oppo has an IPX5 ranking, which is on par so far as water is anxious.

OnePlus Bullets Wireless Z vs Oppo Enco M31

One of the vital issues I wasn’t keen on at the Enco M31 is the position of the controls. The controls are positioned at the within the left stalk, somewhat than at the cable like at the Bullets Wi-fi Z. This makes them awkward to get admission to and likewise makes it tricky to inform the left aspect from the best at a look whilst placing them on. The controls at the Bullets Wi-fi Z are simply higher general.

The one annoyance at the Bullets Wi-fi Z is that the LED at the aspect is just too brilliant. For those who revel in listening at midnight, the flashing LED makes you are feeling like an plane flying throughout the evening with its strobe lighting fixtures flashing at the wings. It is brilliant sufficient to hassle you and someone slumbering subsequent to you. The Enco M31 has a a lot more refined LED that’s not even on outdoor of pairing and charging modes.


Each the Bullets Wi-fi Z and the Enco M31 are at ease pairs of earphones. The M31 are lighter however the Bullets Wi-fi Z do not really feel heavy, both.

OnePlus Bullets Wireless Z vs Oppo Enco M31

The Bullets Wi-fi Z have higher high quality ear pointers. They’ve an opulent really feel to them and create an improbable seal. The Enco M31 pointers really feel extra atypical compared however are at ease nevertheless and likewise seal nicely.

Instrument and Options

Neither of those earphones have a tradition app. Alternatively, they each be offering some further capability when paired with their respective logo of smartphones.

OnePlus custom settings

OnePlus tradition settings

The Bullets Wi-fi Z, for instance, will display a pop up on a close-by OnePlus smartphone when in pairing mode. OnePlus additionally has a devoted audio preset custom-designed for those earphones. The Enco M31 may even display the pairing pop up on make a selection Oppo telephones. This makes pairing simple so long as you’ve got the supported telephone, as neither of those have NFC.

Every other factor they do not have is multi-device pairing. Whilst each beef up Bluetooth 5.0, they are able to be paired to just one system at a time. Each have a mechanism to temporarily transfer between the present and final paired system. At the Bullets Wi-fi Z, you double click on the pairing button. At the Enco M31, you press and hang the amount +/- buttons for 3 seconds.

OnePlus Bullets Wireless Z vs Oppo Enco M31

The Bullets Wi-fi Z additionally be offering a low-latency mode, which claims to cut back latency all the way down to 110ms. This mode best works with make a selection OnePlus telephones with the Fnatic Mode enabled.

OnePlus Bullets Wireless Z vs Oppo Enco M31

Each make use of 9.2mm drivers with the Oppo having a titanium-plated composite diaphragm. The Bullets Wi-fi Z beef up SBC and AAC formats whilst the Enco M31 additionally provides LDAC on best of that checklist. The Enco M31 additionally has a Hello-Res Audio Wi-fi certification.

The Enco M31 additionally come with a Bass Mode, which may also be activated through double-pressing the multi-function button. This amplifies the low-frequency reaction for a extra bass-heavy sound. The mode can’t be engaged completely and resets again to Balanced Mode while you transfer off the headset.


The Oppo Enco M31 are the easier sounding pair of earphones out of the 2. They’ve a balanced, detailed sound with tight, punchy bass reaction, blank, distinct mid-range, and glowing highs. The loss of emphasis or suppression of any explicit area of the frequency reaction method the Enco M31 paintings nicely throughout all genres of song or even different forms of content material reminiscent of motion pictures, podcasts, and video games.

Whenever you get used to this kind of sound signature, it is tricky to return to the extra pedestrian, bass or treble-heavy sound of alternative funds earphones. Your earphones are now not influencing the sound of your content material so you’ll be able to pay attention it because it was once intended to be heard with none shade.

OnePlus Bullets Wireless Z vs Oppo Enco M31

Some folks may well be tempted to assert this as a victory for the LDAC codec however the Enco M31 sound nice irrespective of what codec you employ. Even if paired with an iPhone, the M31 nonetheless sound nice, which is a testomony to how the audio is tuned somewhat than any explicit codec.

The Bullets Wi-fi Z obviously play 2nd mess around so far as the audio high quality is anxious. Having stated that, they do not sound unhealthy, both. The Bullets Wi-fi Z have a extra bass and treble-heavy sound, which is tuned extra for mainstream tastes than accuracy. That is remedied a bit of through the tradition EQ profile on OnePlus telephones, which brings down the high and low finish to be extra in keeping with the mids and likewise widens the soundstage a bit of for a extra herbal sound. However you do not get this EQ on non-OnePlus telephones.

Oddly sufficient, the collection of codec getting used at the Bullets Wi-fi Z does play a task in the way it sounds, and its even mode atypical while you notice that they sound higher with SBC than the default AAC codec. Switching backward and forward between AAC and SBC from the Android Bluetooth menu, the SBC possibility sounded extra mid-forward and likewise louder general. That is clearly all the way down to how the audio processor at the Bullets Wi-fi Z processes the 2 formats however most often you should not be listening to any distinction within the sound signature between the other formats, which is precisely what is taking place right here. When you’ve got a non-OnePlus Android telephone, I might suggest disabling the AAC codec from the Bluetooth menu.

OnePlus Bullets Wireless Z vs Oppo Enco M31

General, although, this is a straightforward victory for the Enco M31 as a result of they’ve essentially the most correct sound. Now not everybody needs correct sound however that is not the way you check audio tools. All audio tuning must be executed at the system, now not the audio system, which must be as impartial as conceivable. Having your audio system come to a decision how your audio sounds is like portray your digital camera lens to get a colour clear out.

Audio high quality apart, the Bullets Wi-fi Z do pull forward of the Enco M31 in different sides. Each have an identical latency and the Fnatic Mode at the Bullets Wi-fi Z did not appear to make a lot of a distinction in any respect. However it is the microphone efficiency the place the Enco M31 fall flat, with a lovely reasonable and sorry excuse for a mic getting used that regularly fails to get your voice throughout for your callers. The Bullets Wi-fi Z do not precisely have a qualified podcast setup occurring however sound higher general with clearer audio transmission all the way through voice calls.

Battery Lifestyles

For those who evaluate the on-paper numbers for battery lifestyles, you realize the Bullets Wi-fi Z are going to win this spherical hands-down. OnePlus claims 20-hours of use on a complete fee, with a 10-minute fee giving 10-hours of utilization. That is beautiful spectacular for a neckband-style of earphones, in particular the second one determine for a 10-minute fee, which is almost certainly industry-leading.

OnePlus Bullets Wireless Z vs Oppo Enco M31

Oppo, in the meantime, claims 12 hours with SBC and eight hours with LDAC. Additionally, a 10-minute fee will best supply 3-hours of playback for LDAC.

For those who learn the person evaluations, you realize the numbers. The Bullets Wi-fi Z ran for the entire 20-hours on a complete fee and an excellent 13-hours on a 10-minute fee.

In the meantime, M31 lasted for 7.5-hours with LDAC on a complete fee and 11-hours with AAC (I did not check SBC).

The numbers paint all of the tale right here. The Bullets Wi-fi Z are simply higher relating to battery lifestyles. As anyone who has used each, I can’t specific how pissed off I’m with the Enco M31 battery. To be truthful, I take advantage of them extra regularly — day-to-day even — on account of how excellent they sound. However that suggests I’m additionally charging them at some point aside whilst the Bullets Wi-fi Z would opt for 4-Five days simply.

Each fee totally in just below an hour, so that is not a topic, however it is nonetheless irritating to pause what you had been taking note of or looking at as a result of your audio system ran out of electrical energy. In fact, neither paintings whilst charging.


To begin with, I wish to point out that it’s loopy how inexpensive each those pairs of earphones are for the type of efficiency they provide. Whilst different corporations are nonetheless robbing shoppers blind for the benefit of now not having to plug their headphones in, OnePlus and Oppo have controlled to get a hold of high quality merchandise that do not cost a fortune.

OnePlus Bullets Wireless Z vs Oppo Enco M31

Alternatively, some concessions needed to be made to succeed in this value level, and nowhere is that this extra obvious than at the Oppo Enco M31. Whilst a actually surprising sounding pair of earphones, the M31 are dragged down through disappointing battery lifestyles and a low-quality microphone. The battery lifestyles, particularly, is disheartening on account of how inviting they sound, which makes you need to hear them extra regularly, best to learn again and again that the battery is empty.

The Bullets Wi-fi Z has no such factor. Whilst now not precisely powered forever through a secret nuclear reactor, the kind of 3x battery lifestyles they revel in over the Enco M31 method they’ll as nicely be. It will provide you with the arrogance of dressed in them over lengthy trips (as and when the ones transform an possibility once more) as a result of you realize a unmarried fee gets you internationally. And the 10+ hour utilization on a 10-minute fee is solely icing at the cake.

OnePlus Bullets Wireless Z vs Oppo Enco M31

Additionally, the Bullets Wi-fi Z also are simply higher made. They feel and look extra top rate, have extra good controls, and should not have a mic that makes you sound like you are calling from an underwater cave. The audio high quality isn’t as technically spectacular as at the Oppo, however maximum patrons on this value differ would possibly in reality desire the bass-heavy sound of the Bullets Wi-fi Z.

So for most of the people, the OnePlus Bullets Wi-fi Z are simply the extra good selection. However in case you are this sort of one who values audio high quality over the entirety else, the Oppo Enco M31 may not disappoint.

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