Watch maker IWC has revealed a smart strap upgrade for its Schaffausen watch, adding fitness tracking and internet of things connectivity to the accessory, Digital Spy reveals.

The IWC Connect module attaches to a watch strap to bring additional functionality, but lacks a display and does not deliver notifications.

Even with the Connect attached, the IWC Schaffausen fails to qualify as a fully-fledged smartwatch, but it does eliminate the need to wear two devices in the gym.

Smart strap upgrades are not a new concept, with Montblanc previously bringing an OLED display, notifications and sensors to watch bands with its e-Strap.

A release date and pricing for the IWC Connect are yet to be announced.