Existing Whoop customers are upset as the company reneged on its promise of free upgrades to the new Whoop 5.0 hardware for users who have been with the service for at least six months.
Whoop operates on a subscription membership model, where customers pay an annual fee for the service including the hardware.
The company originally stated that existing members could upgrade to new hardware for free, but this has now changed, with customers having to pay for upgrades or extend their memberships.
The decision has led to backlash from Whoop users, with many expressing disappointment and frustration over the shift in the company's upgrade policy.