Star LabTop Mk IV [1]:
Thickness: 0.58 inches (1.48 cm)
Weight: 2.2 pounds (1 kg)
MacBook Air [2]:
Thickness: 0.63 inch (1.61 cm)
Weight: 2.8 pounds (1.29 kg)
[1] https://starlabs.systems/pages/labtop-mk-iv-specification
[2] https://www.apple.com/macbook-air/specs/