Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 30 - Jul 5
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Description
Viiiiva Heart Rate MonitorTAKE YOUR TRAINING TO HEART The 4iiii Viiiiva is a precision heart rate monitor designed to capture the most accurate picture of your internal physiological effort. Whether youre pushing through a high intensity workout, pacing a marathon, or climbing the virtual mountains of Zwift, the Viiiiva provides the real time data needed to optimize performance, track cardiovascular fitness, and manage recovery with professional grade accuracy. Built for
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.0 ★★★★★
Based on 195 reviews
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Product Reviews
★★★★★ 4
Works great.
Color: Blue+red
I love how easy this children’s dental floss is. My child with ASD is able to use with little to no help. it’s been years trying to get my child with sensory sensitivities to floss or brush teeth without a HUGE STRUGGLE, however this is very gentle and something that makes our oral health care routine smoother. ( if you know, you know!!) It is very similar to the viral “ usmile” adult version water flossers. My only complaint/issue with this is that it collapse pretty easily and sometimes it’s hard to keep in the locked position while flossing teeth. Overall a good product, and recommend.?
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Good for kids
Color: Blue+red
A little powerful for my 8 year old at first but after he got the hang of it, he loves using it.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Great for dental appliances
Color: Pink+purple
My daughter has a dental appliance that can get food caught in it. We were told to try a water flosser to get the trapped food out. This has done exactly that. Very happy with it.
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Reviewed in the United States on January 7, 2026
★★★★★ 5
Fun new way of flossing.
Color: Blue+red
My 7 year old loves it and it works really well. He’s excited about teeth brushing time again accompanied by water flosser and it can be used in the shower!
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Reviewed in the United States on March 19, 2026
★★★★★ 5
Just as described
Color: Blue+red
Just as described. Quick shipping
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Reviewed in the United States on April 4, 2026
