Had a little problem recharging. The support was immediate and on point . The device itself is invaluable as a workout and health aid to an older (77) "athlete" with some health issues. Being able to monitor heart strain and HRV in real time very important and reassuring to me.

Customer service is great. The USPS couldn’t find the first shipment so Fourth Frontier sent a second unit FedEx. No questions asked. They were on top of the issue and worked it to my complete satisfaction.

I was a relatively early adopter of the Fourth Frontier heart monitor. This a unique and revolutionary device. Revolutionary because now anyone can get up to 24hr EKG readings without having to go through expensive medical systems. Unique because I know of no other product like this. As an early adopter I've seen big improvements in the software and the level of support. This to me is an indication that the company is growing and becoming more mature. My customer service interactions have always been very positive and the team is there to help resolve issues. For my most recent case they were attentive to suggestions to improve their product, interested in how I used the device.

This is a great piece of technology. I’ve been using it for a couple of years as has my wife. It’s actually gotten better over time unlike a lot of other tech. And their customer support it fantastic if you ever need any help.

Terrible customer service had had ongoing issues since purchase I believe I have a faulty unit as the number of glitches I’m having seems odd. Customer services finally sent me a new strap but my problems with it still exist ! Not worth the money with this level of customer service in my opinion Finally after threatening legal action got a refund some 3 months after purchase . I stand by my original post however credit where credits due Paven in customer services had finally authorised my refund .

A good heart rate monitor and found it accurate in terms of HR compared to several other devices. The ECG I would say was questionable hence the 3 stars constantly get the other rhythm been impossible to find out what this relates to. I am keeping if it due to the breathing rate which I am keen to explore more and it is an accurate HR but as far as ECG I have no confidence in the accuracy. Forgot to add the forum is a complete waste of time posted and nearlt 2 weeks the posts are still in moderation reduced review to 2 stars - could be so much better with a decent forum and support service

My Fourth Frontier Technical Support on 11-10-23 was extremely helpful in diagnosing and resolving the X2 caught or stuck in ship mode. By going through routines to reboot the X2 both plugged into the electrical connector and not plugged in the issue was solved.

Excellent device and very helpful customer support !

Great Device, and great support. I had a probleme because the device stop to respond after heavy water. I contacted the helpdesk they replied quickly and give me the right advices. Wait the device to dry and try to turn it on. It worked perfectly. The device resists under 1.5m of water.

great job supporting the product i had an issue and the support team was on it.