iOptron iPolar Mobile vs Bubble Level for Watch Usage & Stats

A spirit level, bubble level or simply a level is an instrument designed to indicate whether a surface is horizontal or vertical. Now directly from the Apple Watch. Workers such as: carpenters, designers, photographers, video recording, stonemasons, ... will be able to do their job faster thanks to the Bubble Level for Watch. A quick way to check out the correct inclination, directly from the Apple Watch! It is not necessary to take out the iPhone. * Please make sure the watch is correctly calibrated. * The result obtained is an estimate, not a perfect result.