The launch of the OneOdio OpenRock S2 marks a significant update in the open-ear headphone market. Released in June 2025, these earbuds aim to appeal to a broader audience with a lighter design and a more affordable price point of $98.99. This development comes as a successor to the original OpenRock S, which was known for its robust build and impressive battery life.
Design Changes and Practicality
The OneOdio OpenRock S2 features a drastically different design compared to its predecessor. Weighing just 7 grams each, the earbuds are more compact and come with a smaller, pebble-shaped charging case that weighs 58 grams. This new design prioritizes portability, making it easier for users to carry them in their bags or wear them during outdoor activities.
However, the shift towards a lighter and sleeker design has introduced some challenges. The flexible rubber sports loop, while comfortable, can lead to an unreliable fit. Users may find the earbuds shifting position during physical activities, which can negatively impact audio quality. The S2 also feature somewhat challenging physical buttons that require careful handling to avoid dislodging the earbuds.
Battery Life and Features
One notable downside of the OpenRock S2 is its reduced battery life. The earbuds provide 8 hours of playback on a single charge and up to 32 hours with the charging case. This is a significant drop compared to the original OpenRock S, which boasted a remarkable 19 hours per earbud and a total of 60 hours with the case.
Despite the reduced battery capacity, the OpenRock S2 introduces a new phone app, enhancing user experience with features like an equalizer and customizable touch controls. The app provides three listening modes—Rock Mode, Relax Mode, and Boom Mode—allowing users to tailor their audio experience. Additionally, users can access a maximum volume limiter and receive notifications for extended listening sessions.
The connection reliability is commendable, utilizing Bluetooth 6.0, ensuring a stable link with devices. However, the earbuds lack active noise cancellation, which is often a drawback for users in noisy environments.
Sound Performance
The sound profile of the OpenRock S2 is characterized by a warm bass emphasis, thanks to the 12mm drivers equipped with TubeBass technology. This feature helps to enhance low-end sounds, addressing a common issue with open-ear designs where bass can often get lost. Nevertheless, while the bass is pronounced, the overall sound quality may not satisfy audiophiles seeking a more nuanced audio experience.
Vocal clarity is somewhat compromised, with mid-range frequencies lacking the brightness that can elevate performances in genres that rely heavily on vocals. The soundstage is limited, which may lead to a sense of congestion in complex tracks.
Value for Money
Priced at $98.99, the OneOdio OpenRock S2 offers a cost-effective alternative to other open-ear models that typically exceed $100. While they do not match the feature set of more expensive competitors, they still provide good value for those who prioritize affordability over premium features.
In summary, the OneOdio OpenRock S2 represents a significant shift in design and pricing for open-ear earbuds. They cater to a different audience compared to their predecessors, appealing to budget-conscious consumers seeking a lightweight, functional option for everyday use. However, users looking for the ruggedness and exceptional battery life of the original OpenRock S may find the transition disappointing.
The OpenRock S2 may not be the perfect choice for everyone, especially in busy environments where audio clarity can be compromised. However, for those who prioritize comfort and affordability, they present a compelling option in the evolving landscape of audio technology.