Suunto launches Spark with cadence and form analysis
Suunto has officially launched the $179 Spark, a new pair of open ear earbuds that takes the brand in a different direction from its bone conduction range. Alongside up to 36 hours of total battery life and a lightweight earbud-style design, the new model also brings running-focused metrics
More than just another pair of earbuds
This is what makes the Spark launch more interesting than a typical audio release. Suunto already has several open ear products in its lineup, including the Wing and Sonic series, but those have focused mainly on awareness and training-friendly listening rather than performance data.
Spark keeps that awareness-first approach, but adds a layer of insight that is usually reserved for watches or chest straps. It can track cadence, assess running technique and monitor head posture during activity, which shifts it closer to a lightweight coaching tool.
Head position is an interesting inclusion because it often changes as fatigue builds. Runners tend to tilt forward or tense up through the neck and shoulders over longer distances, which can affect efficiency. Having feedback on that, even in a simplified form, could be useful for people trying to refine their form without overcomplicating their setup.
This is where the product starts to stand out. It is not just delivering audio, it is trying to add context to how you move.
A new direction for Suunto audio
As far as audio, what is new is the shift to an air conduction earbud design. Instead of the wraparound band used on Wing and Sonic, Spark uses two separate earbuds that sit just outside the ear canal. That should feel more familiar to anyone used to standard wireless earbuds, while still allowing environmental awareness during runs or rides.
That change alone could open this up to a wider audience. Bone conduction works well for many athletes, but the fit is not for everyone, and the design is very clearly sport-first. Spark looks like a more flexible option that still keeps the core benefit of staying aware.
Specs and everyday usability
The spec sheet reinforces that broader positioning. Spark supports LHDC 5.0 high resolution audio, spatial sound with head tracking, custom EQ settings and dual device connectivity over Bluetooth 5.4, which puts it in line with more premium earbuds rather than purely sport-focused ones.
Battery life is quoted at up to 36 hours with the charging case, which should translate to several days of mixed use without needing to recharge. The earbuds also come with IP55 water and sweat resistance, making them suitable for regular training as well as day to day use.
The sub 10g weight per earbud is another important detail because comfort tends to matter more with open ear designs. If these sit securely without adding pressure, they could work well for longer sessions where heavier earbuds start to become noticeable.
How it fits alongside Wing 2
This gives Suunto two distinct directions in its audio lineup. Wing 2 remains the more dedicated training option, with its bone conduction setup, safety features and strong focus on outdoor use.
Spark feels more adaptable. It still targets active users, but the design and feature set suggest it is meant to be used throughout the day, not just during workouts. That includes commuting, casual listening and general use where bone conduction might feel too specialised.
For Suunto, this looks like a logical expansion rather than a shift away from its core audience. The company is building out a broader ecosystem around training, and Spark adds another entry point that may appeal to users who want something simpler and more familiar in form.
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