It's okay. Doesn't reach well up your arm if you're muscular. The volume button is hard to press when inside and difficult to turn off. I would recommend it for activities where you don't interact with the phone. Also, it can easily slip off your hand if you don't pull the velcro as tight as possible. If you are a long-distance runner, your arm can become numb due to lack of blood flow. Remember that everyone is different and may respond differently to belt tension. However, I believe this is the most honest review I can give this device. Finally, I sometimes use it for light workouts.
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