If you need a truly portable scale, the Tru Weigh Mini Crimson Collapsible Bowl Scale is a great option worth considering. 

The Mini Crimson is superb at measuring small objects and amounts with a 0.01g or 0.1g sensitivity. Includes a collapsible silicone bowl and latching lid that the scale can nest inside of. 

Can be used with concentrates and herbs without getting sticky. Features a clear display with bright back light and easy-to-use buttons. 

Available in multiple capacity options.