I used the medium foam tips. The Sport Elite, can stay in your ears for ages. Well, for the 3 hours that you have a charge. That’s long enough for a 21km run for many people! Impressive. However, it also comes with a charging case that holds another 2 additional full charges, and it charges them up fast. So while they are designed for working out, you can totally use them as regular earbuds if you want to. I love the case. Not only that it will keep my buds secure during my travels, but it also has a quality feel to it.
The heart-rate sensor picks up your heart rate through your ear and there’s an initial delay of about 5-10 seconds before it picks up what seems to me an accurate measurement.
There’s a hear-through feature that allows more ambient noise to enter your ears, a good safety feature for runners who want to hear traffic noise. It also comes handy when I simply want to talk to someone in the street without removing the headphones.