Home Audiophile Earbuds Comparison Without a doubt, wireless headphones are currently one of the most used products by users around the world and, because of that, many companies have dedicated themselves to launching a large number of these devices. Among these are KZ and the globally popular Xiaomi, which introduced us to the KZ S1 and the Redmi Airdots, which will be compared today in this KZ S1 vs Redmi Airdots comparison. What's Inside KZ S1 vs Redmi Airdots – All The Differences You Need To Know!KZ S1 vs Redmi Airdots – Specifications (Specs) Sheet ComparisonKZ S1 vs Redmi Airdots – Design & Appearance ComparisonKZ S1 vs Redmi Airdots – Comfort & Wearing Experience ComparisonKZ S1 vs Redmi Airdots – Charging Case ComparisonKZ S1 vs Redmi Airdots – Hardware & Performance ComparisonKZ S1 vs Redmi Airdots – Sound Quality ComparisonKZ S1 vs Redmi Airdots – Talking / Call Experience ComparisonKZ S1 vs Redmi Airdots – Connectivity ComparisonKZ S1 vs Redmi Airdots – Function & Features ComparisonKZ S1 vs Redmi Airdots – Battery Life ComparisonKZ S1 vs Redmi Airdots – Price ComparisonKZ S1 vs Redmi Airdots – Summary KZ S1 vs Redmi Airdots – All The Differences You Need To Know! KZ S1 vs Redmi Airdots – Specifications (Specs) Sheet Comparison ModelKZ S1Redmi Airdots Bluetooth version V5.0V5.0 Bluetooth protocol A2DP, AVRCP, HFP, HSP A2DP, AVRCP, HFP, HSP Transmission distance 10 - 20 meters 10 - 15 meters Driver unit 1DD + BA 7.2mm Playtime 3.5 to 4 hours 3.5 to 4 hours Battery capacity 300mAh300mAh KZ S1 vs Redmi Airdots – Design & Appearance Comparison Before we talk about the way these two pairs of wireless headphones work, let’s talk a bit about the most notable thing, their design. At first glance, we can see that these two are very similar since both have the very useful and popular full in-ear design, which gives them the opportunity to position themselves in a great way inside the ear, avoiding so there are so many problems when the user is on the move. Likewise, all these wireless headphones are ergonomic and very light, in addition to being adaptable to any size of the ear since they have sport rubbers of three different dimensions. It is worth noting that they are not resistant to scratches and bumps, so you have to be very careful with them. Also, the Redmi Airdots has the much-needed IPX4 certification, and while this type of certification makes the devices waterproof, it is not that recommended to fully submerge them in water. On the other hand, KZ S1’s company has not said a word about the IPX certification these earbuds have. Having said that, and this being one of the best characteristics that both earbuds have in common, is that they both have touch panels, which although they are not capable of carrying out complicated actions, do work with the most basic and important controls. KZ S1 vs Redmi Airdots – Comfort & Wearing Experience Comparison Concerning the comfort that these headphones offer, ultimately they have many points in their favor. Since they are made of plastic, the earbuds are extremely light, in addition to having three silicone ear tips (S, M, and L) which are suitable for almost every ear size. Likewise, and due to their comfort and the certifications they have, they can be used not only as common headphones, but they can also be used when exercising since they cling very closely to the ear, which is always a big plus point. About wearing, they can be used for a long time as long as the appropriate size of ear tips is being used, although, and like any other headset made of plastic, it can be a bit annoying for some users. KZ S1 vs Redmi Airdots – Charging Case Comparison Now, and talking about the charging case of these earbuds, the truth is that there is not much difference between them. Both cases have a magnetic closure mechanism, which can assure us that it will not open with any movement we make, thus keeping the headphones safe. All are charged through a micro-USB port, which is charged thanks to a USB Type-C cable provided by the same company. On the other hand, both charging cases come with an internal battery that has a capacity of 300mAh. KZ S1 vs Redmi Airdots – Hardware & Performance Comparison When it comes to hardware, many people would think that some high-end chip made by some popular company is inside these headphones, but that’s not the case for any of these two earbuds. The Redmi Airdots work hand in hand with a chip made by Realtek, and it is the Realtek 876T, while, in relation to the KZ S1, there is no knowledge about the chip that it has inside. KZ S1 …. ??? Redmi Airdots …. Realtek 8763 With that being said, one of the highlights of these products is the master switch added to each earbud. This means that either of the earbuds will serve as the main earbud and will carry the functions of the main earbud (play, pause, call, forward, etc.). This is a useful approach because if you lost an earbud or one of the earbuds gets faulty, one can easily use another earbud as a mono earphone with the same functionality. KZ S1 vs Redmi Airdots – Sound Quality Comparison Now moving to the sound quality, the reality is that you can’t expect professional audio; Remember that when buying any model of True Wireless headphones, you are dispensing with audio quality to gain comfort. In this sense, the Redmi Airdots has a 7.2mm dynamic driver, while the KZ S1 has a 1DD + BA combo (One Dynamic Driver + Balanced Armature). The difference between BA and dynamic drivers is that BA does not displace air to produce sound, having a lack of bass as a result, although the single dynamic driver that it has improves this aspect a bit. Although they do not give the best sound on the market, to get a better listening, you can turn the volume up to its highest capacity, because they also have the ability to provide a really good bass quality. KZ S1 has: Better performance in the treble frequency than Redmi Airdots Better detailed sounds than Redmi Airdots Redmi Airdots has: Better clarity than KZ S1 Better bass than KZ S1 Better controlled bass than KZ S1 Having said that, by being placed correctly on the ear, these two earbuds are capable of keeping external noises moderately opaque, and that is that although external sounds could still be heard a little, everything can be solved by setting the volume of what it is being listened to 100%, which is performing in a good way. KZ S1 vs Redmi Airdots – Talking / Call Experience Comparison About the experience in calls, there’s no microphone difference in both earphones. They have the same mic. Also, the call quality is just average, nothing special. They can be easily used when talking on the phone in any closed space, although the problem comes when they are used in open spaces with noise; the audio and microphone quality drop immediately, and if there is a lot of noise, it will be almost impossible to have a conversation that can be understood. KZ S1 vs Redmi Airdots – Connectivity Comparison Due to the use of Bluetooth 5.0, the connectivity of these two headphones to other devices is of high quality, in addition to is capable of greater stability, battery optimization, and have a faster connection speed. The Redmi Airdots has a range of 10 to 15 meters of connectivity while the KZ S1 has a range of an amazing 20 meters and, on top of that, we found that they can be used separately and linked in the same way. Also, they automatically connect after removing them from the box after being paired with another device. KZ S1 vs Redmi Airdots – Function & Features Comparison Now let’s discuss the functions and features of these earbuds. In the KZ S1, we have things like: 1DD + BA combo iOS and Android compatibility Smart touch control Voice assistant On the other hand, in the Redmi Airdots we have these additional features apart from the above-said features: 7.2mm dynamic driver with ENC Support for HFP/AVRCP/A2DP protocols In-ear detection Dual master switch IPX4 certification KZ S1 vs Redmi Airdots – Battery Life Comparison In relation to the battery, and as mentioned before, the charging cases of both earbuds have a capacity of 300mAh. With that being said, the KZ S1 themselves have individual batteries with a capacity of 40mAh, while the Redmi Airdots have 43mAh batteries. Also, in the case of both pairs of earbuds, the battery lasts about 3.5 to 4 hours. With that being said, both earbuds take about 1.5 to 2 hours to fully charge. KZ S1 vs Redmi Airdots – Price Comparison Finally, and to finish this comparison, we will talk about the prices of these earbuds. The KZ S1 is available in various online stores, but the lowest price is found on AliExpress with a price that is around $21 to $24. On that same note, the lowest prices for the Redmi Airdots can be found on Amazon for $19.98 and in AliExpress with a price that is around $10 to $20. Xiaomi TWSEJ04LS Redmi Airdots Earphones, Bluetooth, Sweatproof, True Wireless Earbuds, Global... Xiaomi TWSEJ04LS Redmi Airdots Earphones, Bluetooth, Sweatproof, True Wireless Earbuds, Global... $19.99 in stock 5 new from $19.99 as of September 18, 2021 2:52 am Grab Now! Amazon.com KZ S1 S1D TWS Wireless Earphones Bluetooth 5.0 Dynamic/Hybrid Sport Earphone KZ S1 S1D TWS Wireless Earphones Bluetooth 5.0 Dynamic/Hybrid Sport Earphone $21.00 in stock Grab Now! Aliexpress KZ TWS S1D/S1 Wireless Touch Control Bluetooth 5.0 Earphones Dynamic/Hybrid Earbuds Headset Noise... KZ TWS S1D/S1 Wireless Touch Control Bluetooth 5.0 Earphones Dynamic/Hybrid Earbuds Headset Noise... $21.01 $35.02 in stock Grab Now! Aliexpress KZ S1 S1D TWS Bluetooth 5.0 Wireless in Ear Earphones Dynamic/Hybrid Technology Sport Earphones... KZ S1 S1D TWS Bluetooth 5.0 Wireless in Ear Earphones Dynamic/Hybrid Technology Sport Earphones... $27.99 in stock 2 new from $27.99 as of September 18, 2021 2:52 am Grab Now! Amazon.com KZ S1 2WAY (Dynamic/BA) Hybrid Dual Driver in Ear Earphones,TWS True Wireless Bluetooth 5.0... KZ S1 2WAY (Dynamic/BA) Hybrid Dual Driver in Ear Earphones,TWS True Wireless Bluetooth 5.0... $36.99 in stock 2 new from $36.99 as of September 18, 2021 2:52 am Grab Now! Amazon.com KZ S1 vs Redmi Airdots – Summary Both have a full in-ear design Redmi Airdots has IPX4 certification Both have touch control Both charging cases have a capacity of 300mAh Redmi Airdots have a Realtek chip Redmi Airdots has a 7.2mmdynamic driver KZ S1 has a 1DD + BA combo We hope you loved this KZ S1 vs Redmi Airdots comparison. Which one is your favorite TWS earbud? Let us know in the comments.