I tried using 'Leica DISTO X4' which can make plan and 3D drawings in cooperation with a smartphone application with a high-precision & high-durability laser rangefinder. - GIGAZINE
Leica DISTO™ Plan - Apps on Google Play
Leica DISTO™ Plan - Apps on Google Play
Leica DISTO Sketch App | SCCS | Surveying Knowledge Base