Thanks to modern technology, it's now harder than ever for a significant other to cheat and get away with it. However, this might just be the first time someone was caught out by their own Fitbit.

This was the case for the (ex)partner of NFL correspondent Jane Slater, who was caught out thanks to some rather telling Fitbit data.



FitBit

Clearly, the guy forgot that he'd synced up his device with Jane's so that they could keep each other motivated when working out.



And when Jane took a look at his fitness summary, she noticed a spike in physical activity at 4am. Busted.

Jane told her 123,000 followers: "An Ex Boyfriend once got me a Fitbit for Christmas. I loved it. We synched up, motivated each other...

Jane reporting for NFL Network. Credit: NFL Network

"Didn't hate it until he was unaccounted for at 4am and his physical activity levels were spiking on the app - wish the story wasn't real."

In a follow-up tweet, she wrote, "Spoiler alert: he was not enrolled in an OrangeTheory class at 4am." OrangeTheory is a US-based fitness franchise specialising in high intensity personal trainer workouts.

No further details on what happened next, but you can imagine how the conversation went after she found that out. Would've loved to see how he tried to wriggle his way out of that one.

Sounds like he got binned the minute Jane found out - here's hoping she's found someone new (who doesn't like to 'exercise' in the wee hours of the morning).

As you might imagine, a lot of people commented on Jane's post with some anecdotes of their own.

One wrote: "Called my ex repeatedly one night without any answer which was v bizarre ESPECIALLY bc it was my bday.... continued calling throughout the night until he accidentally picked up on his Apple watch, mid f*** with another girl from his hometown L O L good times."

Jane's ex was caught out by his Fitbit. Credit: Pixabay

Another wrote: "My ex husband got caught in an affair because he was wearing the training watch and heartbeat monitor my mom bought him for Christmas - while 'running'. It was the under-one-minute heart rate spike that confirmed things for me!"