In the past few years, we have covered plenty of awesome smartwatches here. NIWA is not a smartwatch and doesn’t track your daily activity but it uses Nixie tubes to show time. It has a solid machined aluminum case with tubes that produce no noise or heat.
The watch uses a gyro sensor to light up only when you need it. It measures 55mm in diameter.
*Disclaimer*Our articles may contain affiliate links. As an Amazon Associate we earn from qualifying purchases. Please read our disclaimer on how we fund this site.