Product Strengths

• Very comfortable to wear, to the point of almost forgetting they are being worn due to the light weight and design
• Sound quality is good for open-ear earbuds, with clear audio and decent bass
• Solid battery life offers around 12 hours of playback on a single charge, and 40 hours with the charging case

Product Considerations

• Maximum volume may be on the lower side, especially in noisy environments
• The triple tap control can be tricky to use
• Lacks a custom EQ option in the app, only offering preset EQs
• Does not support wireless charging
• Weak case magnets cause earbuds to fall out easily if dropped

Comparisons (according to reviewers)

• Vs 1More S50: The S70 is a tad softer than the S50, but has more stock bass; the S70 build quality has jumped a few notches; the S70 is a proper follow-up to the S50

Takeaway: The 1More S70 are comfortable open-ear earbuds with great sound quality and good battery life for those who like to be aware of their surroundings while listening to audio. The sleek design and practical features make them a solid choice for everyday use.

Product Strengths

• Comfortable and lightweight, each bud weighs 8.2 g.
• IPX5 splash resistance makes them suitable for gym use and outdoor exercise.
• Good call quality due to dual microphones per earbud and AI noise cancelling tech.
• Solid battery life, the S31 offer around 10 hours of playback per charge, with the case providing two extra charges for a total of roughly 30 hours.

Product Considerations

• Bass response is limited.
• Sound leakage is present.
• No adjustable EQ.
• Touch controls can be unresponsive.
• The case can be slippery and hard to open.

Comparisons (according to reviewers)

• Vs 1More Fit Open Earbuds S30: The S31 lacks user-adjustable EQ, automatic functions, and multipoint pairing, which the S30 has.
• The S31 has less rich bass than AirPods Pro.
• The S31 has a little less bass than first or second gen AirPods.
• The S31 is not quite as comfortable as the beyerdynamic VERIO 200 and is lacking in low end.

Takeaway: The 1More S31 open earbuds are great for everyday use because they're comfortable, lightweight and stay in place, and you can still hear your surroundings. They offer good sound and call quality for the price.

Product Strengths

• Open-back design provides a wide soundstage, sometimes described as industry-leading for a Bluetooth headphone.
• The BlueMini Bluetooth adapter is convenient, versatile, and provides good value as a wireless balanced DAC/amp module.
• Comfortable to wear, with large ear holes and soft earpads accommodating various ear sizes.
• A wired-only version has been released at a lower price, making it more attractive for wired listening.
• Offers multiple connectivity options: wired (analog and digital via USB), and wireless (Bluetooth).

Product Considerations

• Bass response may be lacking for bass enthusiasts, described as 'sucking' or 'rolling off' in some reviews.
• Treble can be bright and sibilant, and potentially 'hashy', especially at higher volumes or with certain pairings.
• The build quality, while decent, uses more plastic than some competitors like the Sundara.
• The stock cable is stiff and can produce microphonics.
• The included Blue Mini Bluetooth adapter lacks advanced features like volume control or track skipping.

Comparisons (according to reviewers)

• Vs. Hifiman Sundara: The Sundara generally offers better overall sound quality, detail, vocal presentation, and bass (when both are wired), but the Deva with BlueMini gets very close.
• Vs. Hifiman HE400/HE400i: The Deva is better overall when using the BlueMini, especially compared to HE400.
• Vs. Sennheiser HD 6XX/650: The Deva is similar in some ways to the HD 6XX, with a comparable sound signature, but the HD6XX may be smoother in some respects, the HD6XX bass tends to be muddy, while the Deva has a tighter controlled base.
• Vs. AKG K712 Pro: The Deva is tuned closer to the HD 6XX and the 712 Pro but has a narrower soundstage, the 712 Pro has fun articulate bass.

Takeaway: The Hifiman Deva is a versatile headphone that offers a unique blend of open-back planar sound with convenient Bluetooth connectivity, making it a worthwhile consideration for those seeking a convenient and good-sounding listening experience, especially at home or in the office. The inclusion of the BlueMini offers great value as both a Bluetooth receiver and a DAC/Amp, which lets the Deva sound great when wired to a great amp or even just as a DAC to your computer.

Product Strengths

• Excellent spatial presentation, quite holographic, with coherent imaging and separation.
• Balanced sound signature and neutral tuning.
• Improved over the original Deva, adding warmth to fix a slight imbalance of the original.
• Wireless performance is very good due to BlueMini R2R dongle.
• Very comfortable to wear.

Product Considerations

• Use caution when taking it outdoors, particularly when it's windy.
• Stock cable is subpar.
• Aftermarket cable considerations must be taken into account because standard dual 3.5mm headphone cables can short something out.
• Drivability can be an issue with some devices, potentially requiring high gain and higher volume levels on DAPs.
• The extension mechanism on the headband feels a little bit clunky at times.

Comparisons (according to reviewers)

• Vs HE400SE: A clear step up, with better resolution and less sibilance.
• Vs Sennheiser HD600/HD6XX: The Deva Pro has a very expansive soundstage, quite a bit wider than what is found on something like the HD600 or HD6XX.

Takeaway: The Deva Pro is a well-rounded wireless headphone with a pleasingly balanced sound and a uniquely holographic spatial presentation, making it a great choice for audiophiles seeking convenience. The inclusion of the Bluemini R2R adds value through its wireless capabilities.

Product Strengths

• Very secure and comfortable fit due to the design, allowing for extended wear without anything going into the ears.
• Designed to allow awareness of surroundings, important for runners and outdoor activities.
• Sound quality is decent considering the open-ear design.
• Good for phone calls; microphone quality is better than other Bluetooth sport headphones.
• IPX4 rated for sweat and splash resistance.

Product Considerations

• Sound quality is compromised compared to regular headphones or earbuds, especially regarding bass.
• Sound leakage can be an issue in quiet environments at higher volumes.
• Uncomfortable for long durations if wearing glasses.
• The effective volume range is limited when using in noisy environments.
• Bass frequencies are intentionally subdued, the sound profile is not for everyone, and best suits easy-listening genres like acoustic, classical, jazz, and podcasts.

Comparisons (according to reviewers)

• Vs Shox Bone Conduction Headphones: The Float Run is a better option for those who do not like bone conduction, finding it weird or ticklish.
• Vs Bose Sport Open Earbuds: Unfavorable comparison, the Bose Sport Open Earbuds are better open-ear sport headphones.
• Vs Sony Linkbuds: The Linkbuds are more expensive but have more utility and advanced features like app compatibility and Bluetooth multipoint.
• Vs Shokz OpenRun Bone Conduction: The Shokz OpenRun Bone Conduction are more comfortable, better built, and have longer continuous battery life.

Takeaway: If you want to hear what's around you while you run or work out, these could be a good fit. They are made to stay in place and let you enjoy music while staying aware.