Mazda launched their new smart key in 2019. The new design sports a similar design to Volvo's current key fob for their lower trim levels.
Pic showing the new Mazda key beside Volvo smart key
Pic Source: link
People are not loving the new design. Two commenters had the following to say:
"I was fine with the current smaller fob. Easy on the hands and the pockets! Mazda, please don't fix what's not really broken.... especially with a gigantor sized replacement like that..." - Chombi"Really glad I have the smaller one. It even fits in a jeans coin pocket." - BobMcT