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Regular price$289.99 USD

Meet HeartIn Fit, a smart ECG t-shirt, monitoring your health condition before, during and after the training session. With a help of HeartIn, you will know for sure when to start and when to rest, how to train with a maximum utility and the lowest harm for your heart.

HeartIn Fit is your foray into a new level of athletic performance! Train safe. Train smart!


All the magic is hidden beneath. HeartIn Fit smart garment is equipped with two built-in textile nano-electrodes, placed at the inner part of the t-shirt at the chest level. These electrodes, as well as the t-shirt itself, are made of soft hypo-allergic fabric, which does not cause irritations and is comfortable to wear all day long.



Ultra Comfortable: No cables, no wires. Looks and feels like any other t-shirt.

Automated Data Analysis: A personal doctor right in your pocket.

Ultra Precise: Medical grade accuracy combined with professional workout features.

Machine Washable: Durability is a top priority. Guarantee 150 washes, tested 300+

12 hr battery life: Enough even for a tough workout session.

Sweat Wicking: Let your body breath even during the hardest push.

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at info@box2boxtech.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at info@box2boxtech.com.

Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

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