Open-Ear
1MORE Fit Open S
68Good
$99
Full review data1MORE Fit Open S vs Beyerdynamic Amiron Zero: which should you buy?
On aggregated review scores the Beyerdynamic Amiron Zero comes out ahead with an HearWiki score of 78. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Beyerdynamic Amiron Zero - Great overall at around $183.
Open-Ear
Beyerdynamic Amiron Zero
78Great
$183
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
1MORE Fit Open S
Sound6.5
Battery8.5
Calls6.0
Value7.0
Beyerdynamic Amiron Zero
Sound7.5
Battery8.0
Calls7.0
Value8.0
Specifications
| Spec | 1MORE Fit Open S | Beyerdynamic Amiron Zero |
|---|---|---|
| Type | Open-Ear | Open-Ear |
| Price (USD) | $99 | $183 |
| HearWiki score | 68 / 100 · Good | 78 / 100 · Great |
| Released | 2024 | 2025 |
| Audio | ||
| Driver | 1MORE PurePower Driver with DLC diaphragm | dynamic |
| Driver size | 13.6 mm | 12 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 20Hz-20kHz | 20Hz-20kHz |
| Impedance | 16 Ω | - |
| Wireless | ||
| Bluetooth | 5.3 | 5.4 |
| Bluetooth version | 5.3 | 5.4 |
| Codecs | AAC, SBC | SBC, AAC |
| Multipoint pairing | Yes | Yes |
| Latency | 80 ms | - |
| Wireless range | 10 m | 15 m |
| Battery | ||
| Battery life | 11 h | 6 h |
| Battery incl. case | 38 h | 20 h |
| Full charge time | 80 min | 120 min |
| Quick charge | 5 min = 2 h | 10 min = 2 h |
| Wireless charging | Yes | No |
| Features | ||
| Active noise cancelling | No | No |
| ANC type | none | none |
| Transparency mode | - | Yes |
| Companion app | Yes | Yes |
| Custom EQ | Yes | - |
| Wear detection | Yes | Yes |
| Controls | touch | touch |
| Design | ||
| Weight | 10 g | 6 g |
| Case weight | 63 g | 50 g |
| Water resistance | IPX7 | IP54 |
| USB-C | Yes | Yes |
| Model code | 1MORE Fit Open Earbuds S50 | - |
| Calls | ||
| Microphones | 4 | 3 |
| Call noise reduction | AI-powered noise reduction calls | - |
What reviewers said
1MORE Fit Open S
These open-ear wireless earbuds prioritize situational awareness and all-day comfort over noise isolation, making them a strong pick for workouts and active use. They deliver a clear, balanced sound with a secure fit, while the standout 38-hour total battery life and IPX7 water resistance add practical value. The feature set is generous for the price, though audiophiles may find rivals with richer audio performance.
- Pro:Exceptional 38-hour total battery life with charging case
- Pro:IPX7 water resistance suitable for intense workouts
- Pro:Comfortable open-ear design that maintains environmental awareness
- Con:Sound quality trails some competitors in detail and dynamics
- Con:No active noise cancellation, limiting immersion
- Con:Touch controls may be less precise than physical buttons
Beyerdynamic Amiron Zero
The Beyerdynamic Amiron Zero are lightweight, open-ear wireless earbuds designed for all-day comfort and clear, spacious audio. They offer a solid feature set including Bluetooth 5.4, multipoint, and a combined 20-hour battery life, though their open design means limited noise isolation and lighter bass. With a strong overall performance in its category, they're a compelling choice for those prioritizing awareness and comfort over immersive isolation.
- Pro:Very lightweight (6g) with comfortable open-ear fit
- Pro:Solid 20-hour total battery life with quick charge support
- Pro:Bluetooth 5.4 with multipoint for seamless device switching
- Con:No active noise cancellation and minimal passive isolation
- Con:Bass response is reduced due to open-ear design
- Con:Supports only SBC and AAC codecs, no aptX or LDAC
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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