[Comfortable to forget you're wearing it!] 】The 1MORE Open Earbuds S31, an open earphone that weighs approximately 8.2g, is resistant to rain and perfect for everyday use.
Written by Saito Titoce
Recently, I have been wearing the 1MORE Open Earbuds S31 open earphones almost all day long. It can be said that he wears the 1MORE Open Earbuds S31 just like wearing glasses. We'll show you why we've become so heavy-duty use.
table of contents
What is the open-ear earphones "1MORE Open Earbuds S31"?
Package for "1MORE Open Earbuds S31". The design is simpler and more refined than expected. It even gives a luxurious impression.
The latest open earphones from 1MORE, a specialist audio manufacturer that operates in 60 countries around the world.
The 1MORE Open Earbuds S31, which I actually used this time, is the latest open earphones from 1MORE, a specialist audio manufacturer that was founded in 2015 and operates in 60 countries around the world. The actual price is around 9,000 yen, which is relatively reasonably priced Bluetooth earphones, with a value of less than 10,000 yen.
The earphone body is lightweight at about 8.2g each, and since it is an open ear type, it uses an ear hook structure with a silicone coating on the steel wire. The ergonomic design reduces discomfort when worn and fits perfectly with the shape of your ears.
Earphones alone can last for approximately 8 hours, and up to 30 hours of playback can be made using the included charging case. The charging case weighs approximately 63.6g, and the overall weight including two earphones is approximately 80g. The charging time is approximately 90 minutes for the earphones and 120 minutes for the charging case.
The 1MORE Open Earbuds S31 is a compact and lightweight dynamic driver, with a large 14.2mm, and the low-frequency range, which is said to be the weakness of open ear types, has improved compared to previous models. It is said that it is equipped with four microphones that use AI noise canceling, automatically removing surrounding noise, allowing clear voice calls even in noisy outdoors.
It also has an IPX5 waterproof design that makes it difficult to break down even if it gets wet with water or sweat, and is apparently made from open-ear earphones that are tough to use in sports scenes such as running. I have actually tried using the "1MORE Open Earbuds S31" in my daily life.
Recommended points
- It's comfortable to wear without hurting your ears even when worn all day long
- Open year where you can hear the surrounding sounds clearly
- Battery performance that does not run out even after using it for a whole day
- IPX5 waterproof design that won't shake up even in sudden rain, so you can rest assured
- Clear sound that is easy to hear and doesn't feel uncomfortable
- Microphone performance that allows you to meet while running
- Relatively reasonable prices below 10,000 yen
Points that interest me
- Sometimes it falls off surprisingly easily
- The response to touch operations can be frustrating
Main Specifications and ratings
| item | 1MORE Open Earbuds S31 |
|---|---|
| Earphone weight | 8.2g (one side) |
| Charging case weight | 63.6g |
| Overall weight | 80g |
| Body dimensions | 44.52 x 46.84 x 13.61mm (1 piece) |
| Charging case dimensions | 84.52 x 62.3 x 27.81mm |
| Earphone battery capacity | 60mAh (one side) |
| Charging case battery capacity | 600mAh |
| Charging time | Earphones: 90min, Charging case: 120min |
| Playback time (when earphones are fully charged) | Approximately 8 hours |
| Playback time (when earphones and case are fully charged) | Approximately 30 hours *Playback time was tested in 1MORE Lab with AAC format and 50% volume, and may vary depending on device settings and usage instructions. |
| Built-in microphone | Four |
| Impedance | 16 Ω |
| Bluetooth specifications | Communication range: 10m, Version: Bluetooth 5.3, Supported profile: HFP/A2DP/AVRCP, Frequency: 2.400GHz to 2.4835GHz |
| input | 5V/0.5A |
| Operating temperature | 0℃～45℃ |
| Compatible models | Android 10 or higher, iOS 13 or higher |
| Outdoor Gearzine Rating | |
| Good fit | ★★★★★ |
| Lightness | ★★★★☆ |
| Battery life | ★★★★☆ |
| Waterproof | ★★★★☆ |
| Portability | ★★★★☆ |
| Microphone performance | ★★★★☆ |
| Cost Performance | ★★★★☆ |
Detailed review
It's very comfortable to wear, as it's worn all day quite frequently.
The items included are the left and right earphones, a case with a charging function, and a manual. Please note that a USB Type-C cable for charging the case is not included.
I think the performance you want from earphones varies from person to person, but I place an overwhelming emphasis on how comfortable they are to wear. Earphones that hurt your ears are the ones that don't even use them no matter how much they sound, so in my case, whether they're cheap or expensive, it's pointless to say.
By the way, I have never used the canal type that is used by inserting it into the ear hole, and even after trying various things, it always hurts my ears, so I have never used it for a long time. Also, even with the ear hook type, the weight and structure of the hook can cause pain in the ears, making it impossible to use these earphones for long periods of time.
And the scene where I most want to use earphones is running. If possible, I would like to run for about an hour every day, so I need to be able to at least be comfortable to wear and withstand this one-hour running. Also, as anyone who actually runs will understand, it is extremely dangerous if you don't hear the sounds around you while running. You will need to hear the sound of approaching cars, bicycles, emergency vehicles, and dogs walking around. Therefore, I generally use open earphones to use everyday. Furthermore, I go out on a run thinking that even if the clouds are quite suspicious, it's fine to get a little wet, so waterproofing is essential to withstand the rain.
The 1MORE Open Earbuds S31, an IPX5-specification open-ear earphone, meets these conditions, but the fit is something you won't know until you try it out. I wear it with my ears pinched, but the elastic balance between the steel wire and silicone coating is exquisite, so I sometimes forget that I wear it seriously.
However, the fit is not good, and although I have been riding over 200km with the 1MORE Open Earbuds S31, I have never fallen or fell off while riding. Also, although it was running in light rain, there was no problem even if it got a little wet.
As for fit, it is safe to say that it is the number one earphone I have used before.
I woke up in the morning and started wearing it with my glasses.
The left and right earphones are 16.4g. It is said that the average weight of glasses is around 35g, so if it weighs this much, I sometimes forget that I'm actually wearing them.
It's so comfortable to wear, so I wear the 1MORE Open Earbuds S31 not only when I run, but recently I wear the 1MORE Open Earbuds S31 when I wake up in the morning when I wear my glasses. It's like charging it before going to bed and waving earphones in the morning with your glasses.
I actually hardly listen to music, so I listen to the 1MORE Open Earbuds S31 by connecting it to my smartphone. Moreover, I like to listen to new books in fields that have absolutely no context, and recently I have been posting them except when I'm writing manuscripts such as Kodansha Gendai Shinsho "Experience Differences," "The Complete History of Sapiens: The Structure of Civilization and the Happiness of Humanity," and Gentosha Shinsho "The Girls of Suspicion."
While making breakfast for the family, the family is being played out loudly in the living room with the readings of "The Complete History of Sapiens: The Structure of Civilization and Happiness of Humanity" and "The Girls of Successful Dad" so it's a good nuisance for the family, so I listen to the open-earth "1MORE Open Earbuds S31" that allows you to hear conversations with your family.
I usually listen to audiobooks when I'm running, taking photos, collecting information on the Internet, or doing housework in between work. Bluetooth can fly up to 10m, so if you place your smartphone in the center of the living room, you can listen to audiobooks wherever you are in our home, not too big.
It is also very convenient because you can control playback and pause by touching the earphones itself. If you receive a call while running, you can also use it to check the recipient with a smartwatch and start a conversation by touching the earphones. What's more, you can also customize the two and three taps using a dedicated app. It's very good, but the bad thing is that it's not a physical switch, but a touch operation, so it doesn't give the impression that it can be operated freely and reliably.
Furthermore, when the family comes home and relaxes in the living room, it's normal for each family to watch a different video in the same place, so while watching my favorite video, I listen to the sound of the video on "1MORE Open Earbuds S31", and also chat with my son and wife at the same time.
In the middle, I don't use it when writing manuscripts, but I actually wear the 1MORE Open Earbuds S31 from morning to night, but I have never run out of battery. Of course, if you forget to charge it when you go to bed, you will need to charge it the next day...
There is no complaints about the sound quality and the microphone can be run and meetings are possible.
In the case of the 1MORE Open Earbuds S31, the shape and strength of the ear hooks, which are coated with silicone on steel wire, are probably the secret to their comfortable fit.
As mentioned earlier, I don't have the habit of listening to music even though I live with earphones almost all day. Therefore, it is not possible to evaluate the elongation of high notes or deep bass notes. sorry. However, since I use it all day, if I feel uncomfortable with it or feel a bit difficult to hear or white noise, I will soon stop using the earphones. However, the 1MORE Open Earbuds S31 is not difficult to hear and does not produce unpleasant noise, so you can continue using it comfortably.
Also, in my case, I often try out the performance of the microphone by making calls while running. I'm not running at a very fast pace, so I have the time to talk. Therefore, when you run in your spare time, you want to have silly small talk or meetings if you have someone else, but with previous earphones, there is a lot of noise such as rough rubbing when running, surrounding noise, and running vibrations, and for long periods of time, the other person listening to you is often annoying.
However, the 1MORE Open Earbuds S31 is equipped with four microphones equipped with AI noise cancelling, so it seems that there is little influence on surrounding noise. From a few minutes' contact, we were able to run and run to a meeting that lasts nearly an hour. It's probably quite easy to use for those who are busy but want to run.
It's great for running, but why not recommended outdoor use
The inside of the "1MORE Open Earbuds S31". There is no part inside the ear that will catch on, so it will fall more easily than you think the ear hook will come off.
My honest impression after using the 1MORE Open Earbuds S31 is that it is "the fit is very good and the best." It also matches the author's somewhat active daily life, including almost daily running scenes. However, we do not recommend using the 1MORE Open Earbuds S31 for outdoor activities such as mountain climbing.
The reason is that even shaking or vibrations during running does not easily cause the 1MORE Open Earbuds S31 to fall off, but perhaps because it is so comfortable that you will seriously forget that you are wearing it, it can easily come off and fall off with a little force.
For example, I sometimes forget to wear it and take off my T-shirt or something, but if I do this, the 1MORE Open Earbuds S31 that I wear will almost certainly come off. In our house, there is a high probability that the earphones will fall when he touches them when he holds his 4-year-old son, carrying him on his shoulder, or when he carries the earphones. Also, the drop rate is high when you forget that you are wearing it and grab your ears.
Therefore, when it is confirmed that the 1MORE Open Earbuds S31 has fallen, you will not notice any problems with the 1MORE Open Earbuds S31 in your daily life, which allows you to pick it up immediately. However, it is not recommended to use it on rocky areas, narrow mountain paths, or scuffs when climbing. In places like this, it would be quite difficult to retrieve the fallen 1MORE Open Earbuds S31. Consideration is necessary in this regard.
Summary: "1MORE Open Earbuds S31" is the best for everyday use
It's very high-quality, such as cost performance and comfort, but I also want to know the cold resistance in winter.
The included case also has a built-in battery, allowing you to charge your earphones from here, so you can go out safely even on short trips.
The 1MORE Open Earbuds S31 is now a necessity for the author. It can't be imagined to live without open earphones that are comfortable to wear and do not fall even while running. When that happens, the price is the opposite of what bothers you.
I am a very lazy person, so I often fall asleep while still playing the "1MORE Open Earbuds S31." Also, when I'm playing outdoors with my son, I still wear the 1MORE Open Earbuds S31, so there's a good chance that it might drop or lose it somewhere, which is hiding in my daily life.
Price is important in such cases. If I put a little effort into it, I think I can buy earphones worth tens of thousands of yen, but if I lose them or lose them, can I buy the same ones again right away? When asked, it feels quite subtle.
On the other hand, the 1MORE Open Earbuds S31, which has an actual price of around 9,000 yen, is inconvenient when you drop or lose it, so it's also attractive to have the pricing that makes you want to buy the same item again right away. These earphones are truly perfect for everyday use.
However, as I am a resident of Hokkaido, who is about to enter winter, I am concerned about the operating temperature between 0 and 45°C. Even Apple's AirPods have an operating temperature of 0 to 35°C, so it can't be helped, but I'm worried it would be inconvenient if it doesn't work during running in the middle of winter, where it's below zero 10°C.
This makes me worried about this, the 1MORE Open Earbuds S31 has become so integrated into my daily life... These are easy and convenient open earphones that can be worn all day long. I recommend it.
Details and purchase of "1MORE Open Earbuds S31"
For product details, please visit 1MORE's official website
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Saito Titoce
Former monthly camera magazine editor. While pursuing the spectacular views of Hokkaido and the wildlife, I was completely hooked on the outdoor life of camper vans and sleeping in my car. While traveling the entire country with his 2-year-old son and wife, he is a photographer writer who photographs and writes everything he has experienced, not only cameras and lenses, but also outdoor camping, child-rearing, PC gadgets, cooking, and dieting. OUTDOOR GEARZINE plans to write a variety of articles, focusing on the QOCL (Quality of Camping Life) Improvement Committee, which will improve the quality of life in camping and camper vans.
